<?xml version='1.0' encoding='UTF-8'?>
<metadata xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <idinfo>
    <citation>
      <citeinfo>
        <origin>Julie A. Herrick</origin>
        <origin>Benjamin J. Drenth</origin>
        <origin>William F. Cannon</origin>
        <pubdate>20220309</pubdate>
        <title>Data Release - Geologic map of the central Upper Peninsula, Michigan</title>
        <geoform>vector digital data</geoform>
        <othercit>Herrick, J.A., Drenth, B.J., and Cannon, W.F., 2022, Data Release - Geologic map of the central Upper Peninsula, Michigan: U.S. Geological Survey data release, https://doi.org/10.5066/P99X3X07.</othercit>
        <onlink>https://doi.org/10.5066/P99X3X07</onlink>
        <lworkcit>
          <citeinfo>
            <origin>Benjamin J. Drenth</origin>
            <origin>William F. Cannon</origin>
            <origin>Klaus J. Schulz</origin>
            <origin>Robert A. Ayuso</origin>
            <pubdate>20210701</pubdate>
            <title>Geophysical insights into Paleoproterozoic tectonics along the southern margin of the Superior Province, central Upper Peninsula, Michigan, USA</title>
            <geoform>publication</geoform>
            <serinfo>
              <sername>Precambrian Research</sername>
              <issue>vol. 359</issue>
            </serinfo>
            <pubinfo>
              <pubplace>n/a</pubplace>
              <publish>Elsevier BV</publish>
            </pubinfo>
            <othercit>Drenth, B.J., Cannon, W.F., Schulz, K.J., and Ayuso, R.A., 2021, Geophysical insights into Paleoproterozoic tectonics along the southern margin of the Superior Province, central Upper Peninsula, Michigan, USAL: Precambrian Research, v. 359, no. 106205, 19 p.</othercit>
            <onlink>https://doi.org/10.1016/j.precamres.2021.106205</onlink>
          </citeinfo>
        </lworkcit>
      </citeinfo>
    </citation>
    <descript>
      <abstract>This dataset supports the publication “Geophysical insights into Paleoproterozoic tectonics along the southern margin of the Superior Province, central Upper Peninsula, Michigan, USA.” At a 1:100,000 scale, these data are in a geologic database in the Geologic Map Schema (GeMS) which includes spatial feature classes and non-spatial tables that contain the geologic information presented in figure 8 and S3 of appendix A, the supplemental map of the publication.</abstract>
      <purpose>The purpose of this data release is to publish a GIS representation of the new geophysical interpretations presented in “Geophysical insights into Paleoproterozoic tectonics along the southern margin of the Superior Province, central Upper Peninsula, Michigan, USA.” The boundaries, unit identifications, and related geologic structures are based on previous geologic mapping works and new geophysical interpretations visualized at a 1:100,000 scale. These data are presented in a Geologic Map Schema (GeMS) to facilitate future studies that may build on this work.</purpose>
      <supplinf>centralupmich.gdb is a composite geodataset that conforms to "GeMS (Geologic Map Schema)--a standard format for the digital publication of geologic maps", available at http://ngmdb.usgs.gov/Info/standards/GeMS/. Metadata records associated with each element within the geodataset contain more detailed descriptions of their purposes, constituent entities, and attributes. An OPEN shapefile versions of the dataset is also available. It consists of shapefiles, DBF files, and delimited text files and retains all information in the native geodatabase, but some programming will likely be necessary to assemble these components into usable formats. These metadata were prepared with the aid of script GeMS_FGDC1_Arc10.py, version of 5 October 2021.

These files are included in this data release:
centralupmich_thumb.png: a thumbnail of the map showing an inset of the map area location

centralupmich-metadata.xml: the metadata in xml format.

centralupmich-resources.zip: a zip archive containing an Esri style file (centralupmich.style) that contains the area, line, and point symbols used to symbolize the map and Federal Geographic Data Committee (FGDC) symbol font files. The layer files associated with each database feature class are included in this folder. The metadata is also included in this folder as *.txt, *.html, and *.xml.

centralupmich-gdb.zip: a zip archive containing the map geodatabase and other elements of the digital data package:

centralupmich.gdb: an Esri file geodatabase – see below for explanation of feature classes and tables.

centralupmich-open.zip: a zip archive containing the shapefiles version of the database including TXT (text) and CSV (comma-separated values) versions of stand-alone tables and attribute tables with entries greater than 254-characters and centralupmich-metadata-datadict.csv. Note that attribute field names in the shapefiles are limited to 10-characters and entries are truncated to 254-characters. A text file (logfile.txt) documents field name translations from the geodatabase to the shapefile version. Fields in the stand-alone tables should be imported as text and not automatically formatted. A schema.ini file is also provided for the CSV versions of the stand-alone tables.

The Esri file geodatabase (centralupmich.gdb) contains the following elements:

GeologicMap: feature dataset (subdirectory) containing the following feature classes (GIS layers):

ContactsAndFaults: line layer representing locations of contacts and faults.
DataSourcePolys: polygon layer representing the spatial extent of data sources and references used within the map boundary.
GeologicLines: line layer representing the locations of dikes, fold axes, and other linear features.
OrientationPoints: point layer representing structure measurements, such as bedding attitudes, foliation attitudes, and small folds.
OverlayPolys: polygon layer that delineates areas of underlying or overlying material commonly shown as a patterned overprint.
MapUnitPolys: polygon layer representing the distribution of geologic map units.

DataSources: table that lists sources and (or) references used to derive spatial features (points, lines, polygons) and attribute information.

DescriptionOfMapUnits: table of map unit descriptions derived from the collar of the geologic map or geologic map pamphlet. The hierarchical order of map units is coded in the HierarchyKey field.

GeoMaterialDict: table that defines and lists lithology terms in hierarchical order used in the GeoMaterial field of the DescriptionOfMapUnits table. The standardized vocabulary is available in Appendix 1 of the GeMS documentation, available at https://doi.org/10.3133/tm11B10.

Glossary: table that defines and lists sources of terms used in the database.

StandardLithology: table that lists the geologic units with specific major and minor lithologies.</supplinf>
    </descript>
    <timeperd>
      <timeinfo>
        <rngdates>
          <begdate>20210701</begdate>
          <enddate>20220101</enddate>
        </rngdates>
      </timeinfo>
      <current>publication date</current>
    </timeperd>
    <status>
      <progress>Complete</progress>
      <update>As needed</update>
    </status>
    <spdom>
      <bounding>
        <westbc>-91.5976</westbc>
        <eastbc>-87.0000</eastbc>
        <northbc>47.0175</northbc>
        <southbc>45.4123</southbc>
      </bounding>
    </spdom>
    <keywords>
      <theme>
        <themekt>USGS Thesaurus</themekt>
        <themekey>data services</themekey>
        <themekey>geospatial datasets</themekey>
        <themekey>geographic information systems</themekey>
        <themekey>geology</themekey>
        <themekey>geologic maps</themekey>
        <themekey>bedrock geologic units</themekey>
        <themekey>bedrock geologic units</themekey>
        <themekey>structural geology</themekey>
      </theme>
      <theme>
        <themekt>USGS Metadata Identifier</themekt>
        <themekey>USGS:621ff91cd34ee0c6b38a86e8</themekey>
      </theme>
      <place>
        <placekt>Geographic Names Information System (GNIS)</placekt>
        <placekey>Alger County</placekey>
        <placekey>Baraga County</placekey>
        <placekey>Delta County</placekey>
        <placekey>Dickinson County</placekey>
        <placekey>Gogebic County</placekey>
        <placekey>Houghton County</placekey>
        <placekey>Iron County</placekey>
        <placekey>Marquette County</placekey>
        <placekey>Menominee County</placekey>
        <placekey>Ontonagon County</placekey>
        <placekey>Ashland County</placekey>
        <placekey>Bayfield County</placekey>
        <placekey>Florence County</placekey>
        <placekey>Forest County</placekey>
        <placekey>Iron County</placekey>
        <placekey>Marinette County</placekey>
        <placekey>Oneida County</placekey>
        <placekey>Price County</placekey>
        <placekey>Sawyer County</placekey>
        <placekey>Vilas County</placekey>
      </place>
      <place>
        <placekt>Common geographic areas</placekt>
        <placekey>Michigan</placekey>
        <placekey>MI</placekey>
        <placekey>Wisconsin</placekey>
        <placekey>WI</placekey>
      </place>
    </keywords>
    <accconst>None. Please see 'Distribution Info' for details.</accconst>
    <useconst>These data are intended for use at approximately 1:100,000-scale or smaller. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although these data have been processed successfully on a computer system at the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein.</useconst>
    <ptcontac>
      <cntinfo>
        <cntperp>
          <cntper>Julie A Herrick</cntper>
          <cntorg>U.S. Geological Survey, DIRECTORS OFFICE</cntorg>
        </cntperp>
        <cntpos>Geologist/Geologic Map Editor</cntpos>
        <cntaddr>
          <addrtype>mailing address</addrtype>
          <address>Mail Stop MS 902, W 6th Ave Kipling St</address>
          <city>Lakewood</city>
          <state>CO</state>
          <postal>80225</postal>
          <country>US</country>
        </cntaddr>
        <cntvoice>303-236-5515</cntvoice>
        <cntemail>jherrick@usgs.gov</cntemail>
      </cntinfo>
    </ptcontac>
    <datacred>Bayley, R.W., 1959, Geology of the Lake Mary quadrangle, Iron County, Michigan: U.S. Geological Survey Bulletin 1077, 112 p., 7 pls.
Bayley, R.W.,  Dutton, C.E., and Lamey, C.A., 1966, Geology of the Menominee iron-bearing district, Dickinson County, Michigan, and Florence and Marinette Counties, Wisconsin: U.S. Geological Survey Professional Paper 513, 96 p., 4 oversize pls.
Cannon, W.F., and Ottke, D., 1999, Preliminary digital geologic map of the Penokean (early Proterozoic) continental margin in northern Michigan and Wisconsin: U.S. Geological Survey Open-File Report 99-547.
James, H.L., Clark, L.D., Lamey, C.A., and Pettijohn, F.J., 1961, Geology of central Dickinson County, Michigan: U.S. Geological Survey Professional Paper 310, 176 p., 14 oversize pls.
Sims, P.K., and Schulz, K.J, 1993, Geologic map of Precambrian rocks of parts of Iron Mountain and Escanaba 30' X 60' quadrangles, northeastern Wisconsin and adjacent Michigan: U.S. Geological Survey Miscellaneous Investigations Series Map I-2356, 1 sheet, scale 1:100,000.</datacred>
    <native>ArcMap 10.7.1 was used to prepare the geodatabase centralupmich.gdb (4.6 MB).</native>
  </idinfo>
  <dataqual>
    <attracc>
      <attraccr>Confidence that a feature exists and confidence that a feature is correctly identified are described in per-feature attributes ExistenceConfidence and IdentityConfidence. Unique values in attribute fields were checked through frequency analyses. The unique values in each attribute field were reviewed and checked for spelling, consistency of terms, accuracy, adherence to established vocabularies, and completeness. Text terms and values entered by USGS authors were reviewed and verified.</attraccr>
    </attracc>
    <logic>GIS layer and attribute information were cross walked into the GeMS database structure. Attribute values were modified for consistency with GeMS terminology. Topology tests were conducted on polygon and line feature classes to ensure spatial integrity of the data.</logic>
    <complete>The original GIS shapefiles (Drenth and others, 2021) were converted to an Esri file geodatabase. Minor errors, such as differences between the digital data and the map image, are corrected in this version. The data set is considered complete for the information presented and as described in the abstract.</complete>
    <posacc>
      <horizpa>
        <horizpar>Estimated accuracy of horizontal location is given on a per-feature basis by attribute LocationConfidenceMeters. Values are expected to be correct within a factor of 2.  A LocationConfidenceMeters value of -9 or -9999 indicates that no value has been assigned. Horizontal accuracy of point, line, and polygon features is dependent on the source data. Computing technologies used for original data capture resulted in variable line quality and accuracy. Consequently, estimated accuracy of horizontal location, given on a per-feature basis by attribute LocationConfidenceMeters in GeMS, was assigned a value of -9 indicating unknown. Registration discrepancies between the printed map and the digital data are not addressed in this version.</horizpar>
      </horizpa>
      <vertacc>
        <vertaccr>Vertical accuracy testing does not apply to this dataset.</vertaccr>
      </vertacc>
    </posacc>
    <lineage>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey]</origin>
            <pubdate>2006</pubdate>
            <title>FGDC Digital Cartographic Standard for Geologic Map Symbolization</title>
            <geoform>publication</geoform>
            <pubinfo>
              <pubplace>Reston, Va.</pubplace>
              <publish>Federal Geographic Data Committee</publish>
            </pubinfo>
            <othercit>Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates.</othercit>
            <onlink>https://doi.org/10.3133/tm11A2</onlink>
          </citeinfo>
        </srccite>
        <typesrc>Digital and/or Hardcopy</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>2006</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>publication date</srccurr>
        </srctime>
        <srccitea>DAS01</srccitea>
        <srccontr>Standardized terms and definitions.</srccontr>
      </srcinfo>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>Benjamin J. Drenth</origin>
            <origin>William F. Cannon</origin>
            <origin>Klaus J. Schulz</origin>
            <origin>Robert A. Ayuso</origin>
            <pubdate>20210701</pubdate>
            <title>Geophysical insights into Paleoproterozoic tectonics along the southern margin of the Superior Province, central Upper Peninsula, Michigan, USA</title>
            <geoform>publication</geoform>
            <pubinfo>
              <pubplace>n/a</pubplace>
              <publish>Precambrian Research</publish>
            </pubinfo>
            <othercit>Drenth, B.J., Cannon, W.F., Schulz, K.J., and Ayuso, R.A., 2021, Geophysical insights into Paleoproterozoic tectonics along the southern margin of the Superior Province, central Upper Peninsula, Michigan, USAL: Precambrian Research, v. 359, no. 106205, 19 p.</othercit>
            <onlink>https://doi.org/10.1016/j.precamres.2021.106205</onlink>
          </citeinfo>
        </srccite>
        <srcscale>100000</srcscale>
        <typesrc>Digital and/or Hardcopy</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>2021</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>publication date</srccurr>
        </srctime>
        <srccitea>DAS02</srccitea>
        <srccontr>Visual representation of the geodatabase in figure 8 and supplementary material S3.</srccontr>
      </srcinfo>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>H.L. James</origin>
            <origin>L.D. Clark</origin>
            <origin>C.A. Lamey</origin>
            <origin>F.J. Pettijohn</origin>
            <pubdate>1961</pubdate>
            <title>Geology of central Dickinson County, Michigan</title>
            <geoform>raster digital data</geoform>
            <pubinfo>
              <pubplace>n/a</pubplace>
              <publish>U.S. Geological Survey</publish>
            </pubinfo>
            <othercit>James, H.L., Clark, L.D., Lamey, C.A., and Pettijohn, F.J., 1961, Geology of central Dickinson County, Michigan: U.S. Geological Survey Professional Paper 310, 176 p., 14 oversize pls.</othercit>
            <onlink>https://doi.org/10.3133/pp310</onlink>
          </citeinfo>
        </srccite>
        <srcscale>24000</srcscale>
        <typesrc>Digital and/or Hardcopy</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>1961</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>publication date</srccurr>
        </srctime>
        <srccitea>DAS03</srccitea>
        <srccontr>Geology of central Dickinson County; Plate 2 W and Plate 2 E</srccontr>
      </srcinfo>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>Richard W. Bayley</origin>
            <origin>Carl E. Dutton</origin>
            <origin>Carl A. Lamey</origin>
            <pubdate>1966</pubdate>
            <title>Geology of the Menominee iron-bearing district, Dickinson County, Michigan, and Florence and Marinette Counties, Wisconsin</title>
            <geoform>raster digital data</geoform>
            <pubinfo>
              <pubplace>n/a</pubplace>
              <publish>U.S. Geological Survey</publish>
            </pubinfo>
            <othercit>Bayley, R.W.,  Dutton, C.E., and Lamey, C.A., 1966, Geology of the Menominee iron-bearing district, Dickinson County, Michigan, and Florence and Marinette Counties, Wisconsin: U.S. Geological Survey Professional Paper 513, 96 p., 4 oversize pls.</othercit>
            <onlink>https://doi.org/10.3133/pp513</onlink>
          </citeinfo>
        </srccite>
        <srcscale>24000</srcscale>
        <typesrc>Digital and/or Hardcopy</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>1966</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>publication date</srccurr>
        </srctime>
        <srccitea>DAS04</srccitea>
        <srccontr>Geology of the Menominee iron-bearing district, Dickinson County, Michigan, and Florence and Marinette Counties, Wisconsin; Plates 1, 2, and 3.</srccontr>
      </srcinfo>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>William F. Cannon</origin>
            <origin>Doug Ottke</origin>
            <pubdate>1999</pubdate>
            <title>Cannon and Ottke (1999) Cannon, W.F., and Ottke, D., 1999, Preliminary digital geologic map of the Penokean (early Proterozoic) continental margin in northern Michigan and Wisconsin: U.S. Geological Survey Open-File Report 99-547.</title>
            <geoform>vector digital data</geoform>
            <pubinfo>
              <pubplace>n/a</pubplace>
              <publish>U.S. Geological Survey</publish>
            </pubinfo>
            <othercit>Cannon, W.F., and Ottke, D., 1999, Preliminary digital geologic map of the Penokean (early Proterozoic) continental margin in northern Michigan and Wisconsin: U.S. Geological Survey Open-File Report 99-547.</othercit>
            <onlink>https://doi.org/10.3133/ofr99547</onlink>
          </citeinfo>
        </srccite>
        <srcscale>100000</srcscale>
        <typesrc>Digital and/or Hardcopy</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>1999</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>publication date</srccurr>
        </srctime>
        <srccitea>DAS05</srccitea>
        <srccontr>Geologic map of Penokean (early Proterozoic) continental margin in northern Michigan and Wisconsi</srccontr>
      </srcinfo>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>Richard W. Bayley</origin>
            <pubdate>1959</pubdate>
            <title>Geology of the Lake Mary quadrangle, Iron County, Michigan</title>
            <geoform>raster digital data</geoform>
            <pubinfo>
              <pubplace>n/a</pubplace>
              <publish>U.S. Geological Survey</publish>
            </pubinfo>
            <othercit>Bayley, R.W., 1959, Geology of the Lake Mary quadrangle, Iron County, Michigan: U.S. Geological Survey Bulletin 1077, 112 p., 7 pls.</othercit>
            <onlink>https://doi.org/10.3133/b1077</onlink>
          </citeinfo>
        </srccite>
        <srcscale>24000</srcscale>
        <typesrc>Digital and/or Hardcopy</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>1959</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>publication date</srccurr>
        </srctime>
        <srccitea>DAS06</srccitea>
        <srccontr>Geology of the Lake Mary quadrangle, Iron County, Michigan; Plate 1</srccontr>
      </srcinfo>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>Klaus K.E. Neuendorf</origin>
            <origin>James P. Mehl, Jr.</origin>
            <origin>Julia A. Jackson</origin>
            <pubdate>2011</pubdate>
            <title>Glossary of Geology</title>
            <edition>5</edition>
            <geoform>publication</geoform>
            <othercit>Neuendorf, K.K.E., Mehl Jr., J.P., and Jackson, J.A., 2011, Glossary of Geology (fifth edition): American Geological Institute, Alexandria, Virginia, 779 p.</othercit>
          </citeinfo>
        </srccite>
        <typesrc>Digital and/or Hardcopy</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>2011</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>publication date</srccurr>
        </srctime>
        <srccitea>DAS07</srccitea>
        <srccontr>AGI glossary terms</srccontr>
      </srcinfo>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>Edward M. Larkin</origin>
            <origin>Carma A. San Juan</origin>
            <origin>John D. Horton</origin>
            <pubdate>20210504</pubdate>
            <title>GIS Data for Geologic Map of the Challis 1 x 2 Degrees Quadrangle, Idaho</title>
            <geoform>dataset</geoform>
            <pubinfo>
              <pubplace>https://www.sciencebase.gov</pubplace>
              <publish>U.S. Geological Survey</publish>
            </pubinfo>
            <othercit>Larkin, E.M., Horton, J.D., San Juan, C.A., 2021, GIS data for geologic map of the Challis 1 x 2 degrees quadrangle, Idaho: U.S. Geological Survey data release, https://doi.org/10.5066/P9ITT4YF.</othercit>
            <onlink>https://doi.org/10.5066/p9itt4yf</onlink>
          </citeinfo>
        </srccite>
        <srcscale>250000</srcscale>
        <typesrc>Digital and/or Hardcopy</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>2021</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>publication date</srccurr>
        </srctime>
        <srccitea>DAS08</srccitea>
        <srccontr>Glossary terms</srccontr>
      </srcinfo>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>U.S. Geological Survey National Cooperative Geologic Mapping Program</origin>
            <pubdate>20200902</pubdate>
            <title>GeMS (Geologic Map Schema)—A standard format for the digital publication of geologic maps</title>
            <geoform>publication</geoform>
            <pubinfo>
              <pubplace>n/a</pubplace>
              <publish>U.S. Geological Survey</publish>
            </pubinfo>
            <othercit>U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema)-A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods, book 11, chap. B10, 74 p.</othercit>
            <onlink>https://doi.org//10.3133/tm11B10</onlink>
          </citeinfo>
        </srccite>
        <typesrc>Digital and/or Hardcopy</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>2020</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>publication date</srccurr>
        </srctime>
        <srccitea>DAS09</srccitea>
        <srccontr>Geologic database schema and terminology</srccontr>
      </srcinfo>
      <srcinfo>
        <srccite>
          <citeinfo>
            <origin>P.K. Sims</origin>
            <origin>K.J. Schulz</origin>
            <pubdate>1993</pubdate>
            <title>Geologic map of Precambrian rocks of parts of Iron Mountain and Escanaba 30' x 60' quadrangles, northeastern Wisconsin and adjacent Michigan</title>
            <geoform>publication</geoform>
            <pubinfo>
              <pubplace>n/a</pubplace>
              <publish>U.S. Geological Survey</publish>
            </pubinfo>
            <othercit>Sims, P.K., and Schulz, K.J, 1993, Geologic map of Precambrian rocks of parts of Iron Mountain and Escanaba 30' X 60' quadrangles, northeastern Wisconsin and adjacent Michigan: U.S. Geological Survey Miscellaneous Investigations Series Map I-2356, 1 sheet, scale 1:100,000.</othercit>
            <onlink>https://doi.org/10.3133/i2356</onlink>
          </citeinfo>
        </srccite>
        <srcscale>100000</srcscale>
        <typesrc>Digital and/or Hardcopy</typesrc>
        <srctime>
          <timeinfo>
            <sngdate>
              <caldate>1993</caldate>
            </sngdate>
          </timeinfo>
          <srccurr>publication date</srccurr>
        </srctime>
        <srccitea>DAS10</srccitea>
        <srccontr>Geologic map of Precambrian rocks of parts of Iron Mountain and Escanaba 30' X 60' quadrangles, northeastern Wisconsin and adjacent Michigan</srccontr>
      </srcinfo>
      <procstep>
        <procdesc>Ben Drenth and Bill Cannon (USGS) compiled the geology onto scale-stable base materials. Julie Herrick (USGS) imported the files, projected and further attributed, edited, and compared to the original and reference rasters to check for digitizing and attributing errors. Corrections were made as needed. The files are stored in the projection – WGS 84.</procdesc>
        <procdate>20220302</procdate>
      </procstep>
      <procstep>
        <procdesc>The original data were converted from Esri ArcMap shapefile format into feature classes within an Esri file geodatabase. Attributes were standardized to conform to the Geologic Map Schema (GeMS) standard for geologic map publications: https://doi.org/10.3133/tm11B10. GeMS geodatabase feature classes and tables were populated with additional information as required. 

Topology tests were conducted on polygon and line feature classes to ensure spatial integrity of the data.

Base maps used for original data capture are available. Spatial extent of the base maps were digitized and stored as polygons in the DataSourcePolys feature class. Registration discrepancies between the printed map and the digital data are not addressed in this version.

Map unit colors were matched to the original publication as best possible and are represented as RGB values in the AreaFillRGB field of the DescriptionOfMapUnits table. They are also provided in the custom Esri Style file.

Geologic map symbolization was matched to the original publication as best possible using the FGDC Digital Cartographic Standard for Geologic Map Symbolization (FGDC, 2006). These values are represented in the Symbol attribute fields and are provided in the included Esri Style file.</procdesc>
        <procdate>20220308</procdate>
        <proccont>
          <cntinfo>
            <cntperp>
              <cntper>Julie A Herrick</cntper>
              <cntorg>U.S. Geological Survey, DIRECTORS OFFICE</cntorg>
            </cntperp>
            <cntpos>Geologist/Geologic Map Editor</cntpos>
            <cntaddr>
              <addrtype>mailing address</addrtype>
              <address>Mail Stop MS 902, W 6th Ave Kipling St</address>
              <city>Lakewood</city>
              <state>CO</state>
              <postal>80225</postal>
              <country>US</country>
            </cntaddr>
            <cntvoice>303-236-5515</cntvoice>
            <cntemail>jherrick@usgs.gov</cntemail>
          </cntinfo>
        </proccont>
      </procstep>
    </lineage>
  </dataqual>
  <spdoinfo>
    <direct>Vector</direct>
    <ptvctinf>
      <sdtsterm>
        <sdtstype>Entity point</sdtstype>
        <ptvctcnt>683</ptvctcnt>
      </sdtsterm>
    </ptvctinf>
  </spdoinfo>
  <spref>
    <horizsys>
      <planar>
        <gridsys>
          <gridsysn>Universal Transverse Mercator</gridsysn>
          <utm>
            <utmzone>16</utmzone>
            <transmer>
              <sfctrmer>0.9996</sfctrmer>
              <longcm>-87.0</longcm>
              <latprjo>0.0</latprjo>
              <feast>500000.0</feast>
              <fnorth>0.0</fnorth>
            </transmer>
          </utm>
        </gridsys>
        <planci>
          <plance>coordinate pair</plance>
          <coordrep>
            <absres>0.6096</absres>
            <ordres>0.6096</ordres>
          </coordrep>
          <plandu>meters</plandu>
        </planci>
      </planar>
      <geodetic>
        <horizdn>WGS_1984</horizdn>
        <ellips>WGS_84</ellips>
        <semiaxis>6378137.0</semiaxis>
        <denflat>298.257223563</denflat>
      </geodetic>
    </horizsys>
  </spref>
  <eainfo>
    <detailed>
      <enttyp>
        <enttypl>centralupmich</enttypl>
        <enttypd>Metadata source for centralupmich</enttypd>
        <enttypds>centralupmich</enttypds>
      </enttyp>
      <attr>
        <attrlabl>Age (DescriptionOfMapUnits, StandardLithology)</attrlabl>
        <attrdef>Age of map unit as shown in Description of Map Units. Examples of values are "late Holocene", "Pliocene and Miocene", "Lower Cretaceous".</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Examples of values: "Early Proterozoic" or "2.1 Ga"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>AreaFillPatternDescription [PatDes] (DescriptionOfMapUnits)</attrlabl>
        <attrdef>Text description (e.g., "random small red dashes") provided as a convenience for users who must recreate symbolization.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>null</edomv>
            <edomvd>no data</edomvd>
            <edomvds>Producer defined</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <udom>null</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>AreaFillRGB [RGB] (DescriptionOfMapUnits)</attrlabl>
        <attrdef>{Red, Green, Blue} tuples that specify the suggested color (e.g., "255,255,255", "124,005,255") of area fill for symbolizing MapUnit. Each color value is an integer between 0 and 255, values are zero-padded to a length of 3 digits, and values are separated by commas with no space: NNN,NNN,NNN.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Examples of values: "077,077,255"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Azimuth (OrientationPoints)</attrlabl>
        <attrdef>Strike or trend, measured in degrees clockwise from geographic North. Use right-hand rule (dip is to right of azimuth direction). Horizontal planar features may have any azimuth.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0</rdommin>
            <rdommax>358</rdommax>
            <attrunit>degrees (angular measure)</attrunit>
            <attrmres>1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>ContactsAndFaults_ID [CAFs_ID] (ContactsAndFaults)</attrlabl>
        <attrdef>Primary key.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Arbitrary string. Values should be unique within this database. Example of values: "CAF001"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>DataSourceID [DatSrcID] (ContactsAndFaults, DataSourcePolys, GeologicLines, MapUnitPolys, OverlayPolys, StandardLithology)</attrlabl>
        <attrdef>Source of data; foreign key to table DataSources.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>DAS01</edomv>
            <edomvd>Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey] (2006)</edomvd>
            <edomvds>Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02</edomv>
            <edomvd>Drenth and others (2021)</edomvd>
            <edomvds>Drenth, B.J., Cannon, W.F., Schulz, K.J., and Ayuso, R.A., 2021, Geophysical insights into Paleoproterozoic tectonics along the southern margin of the Superior Province, central Upper Peninsula, Michigan, USAL: Precambrian Research, v. 359, no. 106205, 19 p.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS03</edomv>
            <edomvd>James and others (1961)</edomvd>
            <edomvds>James, H.L., Clark, L.D., Lamey, C.A., and Pettijohn, F.J., 1961, Geology of central Dickinson County, Michigan: U.S. Geological Survey Professional Paper 310, 176 p., 14 oversize pls.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS04</edomv>
            <edomvd>Bayley and others (1966)</edomvd>
            <edomvds>Bayley, R.W.,  Dutton, C.E., and Lamey, C.A., 1966, Geology of the Menominee iron-bearing district, Dickinson County, Michigan, and Florence and Marinette Counties, Wisconsin: U.S. Geological Survey Professional Paper 513, 96 p., 4 oversize pls.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS05</edomv>
            <edomvd>Cannon and Ottke (1999)</edomvd>
            <edomvds>Cannon, W.F., and Ottke, D., 1999, Preliminary digital geologic map of the Penokean (early Proterozoic) continental margin in northern Michigan and Wisconsin: U.S. Geological Survey Open-File Report 99-547.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS06</edomv>
            <edomvd>Bayley (1959)</edomvd>
            <edomvds>Bayley, R.W., 1959, Geology of the Lake Mary quadrangle, Iron County, Michigan: U.S. Geological Survey Bulletin 1077, 112 p., 7 pls.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS07</edomv>
            <edomvd>Neuendorf and others (2011)</edomvd>
            <edomvds>Neuendorf, K.K.E., Mehl Jr., J.P., and Jackson, J.A., 2011, Glossary of Geology (fifth edition): American Geological Institute, Alexandria, Virginia, 779 p.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS08</edomv>
            <edomvd>Larkin and others (2021)</edomvd>
            <edomvds>Larkin, E.M., Horton, J.D., San Juan, C.A., 2021, GIS data for geologic map of the Challis 1 x 2 degrees quadrangle, Idaho: U.S. Geological Survey data release.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS09</edomv>
            <edomvd>GeMS (2020)</edomvd>
            <edomvds>U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema)-A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods, book 11, chap. B10, 74 p.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS10</edomv>
            <edomvd>modified from DAS07</edomvd>
            <edomvds>adjusted definitions of inclined and vertical foliation, and outcrops based on the AGI Glossary definition</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS11</edomv>
            <edomvd>Sims and Schulz (1993)</edomvd>
            <edomvds>Sims, P.K., and Schulz, K.J, 1993, Geologic map of Precambrian rocks of parts of Iron Mountain and Escanaba 30' X 60' quadrangles, northeastern Wisconsin and adjacent Michigan: U.S. Geological Survey Miscellaneous Investigations Series Map I-2356, 1 sheet, scale 1:100,000.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS12</edomv>
            <edomvd>modified from DAS01</edomvd>
            <edomvds>adjusted definition of existence certain as it relates to certain</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS05 | DAS11</edomv>
            <edomvd>Drenth and others (2021) | Cannon and Ottke (1999) | Sims and Schulz (1993)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS05 | DAS06 | DAS11</edomv>
            <edomvd>Drenth and others (2021) | Cannon and Ottke (1999) | Bayley (1959) | Sims and Schulz (1993)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS03 | DAS04 | DAS05 | DAS11</edomv>
            <edomvd>Drenth and others (2021) | James and others (1961) | Bayley and others (1966) | Cannon and Ottke (1999) | Sims and Schulz (1993)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS03 | DAS05</edomv>
            <edomvd>Drenth and others (2021) | James and others (1961) | Cannon and Ottke (1999)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS04 | DAS05 | DAS11</edomv>
            <edomvd>Drenth and others (2021) | Bayley and others (1966) | Cannon and Ottke (1999) | Sims and Schulz (1993)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS05</edomv>
            <edomvd>Drenth and others (2021) | Cannon and Ottke (1999)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS03 | DAS04</edomv>
            <edomvd>James and others (1961) | Bayley and others (1966)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS05 | DAS11</edomv>
            <edomvd>Drenth and others (2021) | Cannon and Ottke (1999) | Sims and Schulz (1993)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS05 | DAS06 | DAS11</edomv>
            <edomvd>Drenth and others (2021) | Cannon and Ottke (1999) | Bayley (1959) | Sims and Schulz (1993)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS03 | DAS04 | DAS05 | DAS11</edomv>
            <edomvd>Drenth and others (2021) | James and others (1961) | Bayley and others (1966) | Cannon and Ottke (1999) | Sims and Schulz (1993)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS04 | DAS05 | DAS11</edomv>
            <edomvd>Drenth and others (2021) | Bayley and others (1966) | Cannon and Ottke (1999) | Sims and Schulz (1993)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS06</edomv>
            <edomvd>Drenth and others (2021) | Bayley (1959)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS05</edomv>
            <edomvd>Drenth and others (2021) | Cannon and Ottke (1999)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS03 | DAS04 | DAS05 | DAS06 | DAS11</edomv>
            <edomvd>Drenth and others (2021) | James and others (1961) | Bayley and others (1966) | Cannon and Ottke (1999) | Bayley (1959) | Sims and Schulz (1993)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS03 | DAS05 | DAS06</edomv>
            <edomvd>Drenth and others (2021) | James and others (1961) | Cannon and Ottke (1999) | Bayley (1959)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS03 | DAS05 | DAS11</edomv>
            <edomvd>Drenth and others (2021) | James and others (1961) | Cannon and Ottke (1999) | Sims and Schulz (1993)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS03 | DAS04 | DAS05 | DAS11</edomv>
            <edomvd>Drenth and others (2021) | James and others (1961) | Bayley and others (1966) | Cannon and Ottke (1999) | Sims and Schulz (1993)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>DataSourcePolys_ID [DSrcPol_ID] (DataSources)</attrlabl>
        <attrdef>Primary key.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Arbitrary string. Values should be unique within this database. Example of values: "DSP1"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>DataSources_ID [DatSrc_ID] (DataSources)</attrlabl>
        <attrdef>Primary key.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Arbitrary string. Values should be unique within this database. Example of values: "DAS01"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Definition (GeoMaterialDict, Glossary)</attrlabl>
        <attrdef>Plain-language definition.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Examples of values: "Intrusive igneous rock." or "Metasedimentary rock."</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>DefinitionSourceID [DefSrcID] (Glossary)</attrlabl>
        <attrdef>Source of definition; foreign key to DataSources.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>DAS01</edomv>
            <edomvd>Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey] (2006)</edomvd>
            <edomvds>Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey], 2006, FGDC Digital Cartographic Standard for Geologic Map Symbolization: Reston, Va., Federal Geographic Data Committee Document Number FGDC-STD-013-2006, 290 p., 2 plates.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02</edomv>
            <edomvd>Drenth and others (2021)</edomvd>
            <edomvds>Drenth, B.J., Cannon, W.F., Schulz, K.J., and Ayuso, R.A., 2021, Geophysical insights into Paleoproterozoic tectonics along the southern margin of the Superior Province, central Upper Peninsula, Michigan, USAL: Precambrian Research, v. 359, no. 106205, 19 p.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS04</edomv>
            <edomvd>Bayley and others (1966)</edomvd>
            <edomvds>Bayley, R.W.,  Dutton, C.E., and Lamey, C.A., 1966, Geology of the Menominee iron-bearing district, Dickinson County, Michigan, and Florence and Marinette Counties, Wisconsin: U.S. Geological Survey Professional Paper 513, 96 p., 4 oversize pls.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS07</edomv>
            <edomvd>Neuendorf and others (2011)</edomvd>
            <edomvds>ProduNeuendorf, K.K.E., Mehl Jr., J.P., and Jackson, J.A., 2011, Glossary of Geology (fifth edition): American Geological Institute, Alexandria, Virginia, 779 p.cer defined</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS08</edomv>
            <edomvd>Larkin and others (2021)</edomvd>
            <edomvds>Larkin, E.M., Horton, J.D., San Juan, C.A., 2021, GIS data for geologic map of the Challis 1 x 2 degrees quadrangle, Idaho: U.S. Geological Survey data release.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS09</edomv>
            <edomvd>GeMS (2020)</edomvd>
            <edomvds>U.S. Geological Survey National Cooperative Geologic Mapping Program, 2020, GeMS (Geologic Map Schema)-A standard format for the digital publication of geologic maps: U.S. Geological Survey Techniques and Methods, book 11, chap. B10, 74 p.</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS10</edomv>
            <edomvd>modified from DAS07</edomvd>
            <edomvds>adjusted definitions of inclined and vertical foliation, and outcrops based on the AGI Glossary definition</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS12</edomv>
            <edomvd>modified from DAS01</edomvd>
            <edomvds>adjusted definition of existence certain as it relates to certain</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Description [Descr] (DescriptionOfMapUnits, ContactsAndFaults)</attrlabl>
        <attrdef>Free-format text description of map unit or the Type and certainty of a line feature. Commonly structured according to one or more accepted traditions (e.g., lithology, thickness, color, weathering and outcrop characteristics, distinguishing features, genesis, age constraints) and terse.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Example of values from the DescriptionOfMapUnits table: "mafic/ultramafic intrusive rocks; small circular intrusions inferred from aeromagnetic data"

Examples of values from the ContactsAndFaults feature class: "contact, certain" or "thrust fault"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>DescriptionOfMapUnits_ID [DMapUns_ID] (DescriptionOfMapUnits)</attrlabl>
        <attrdef>Primary key.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Arbitrary string. Values should be unique within this database. Example of values: "DMU01"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>DescriptionSourceID [DesSrcID] (DescriptionOfMapUnits)</attrlabl>
        <attrdef>Source of map-unit description; foreign key to table DataSources.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>DAS02 | DAS06</edomv>
            <edomvd>Drenth and others (2021) | Bayley (1959)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>DAS02</edomv>
            <edomvd>Drenth and others (2021)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Era (StandardLithology)</attrlabl>
        <attrdef>Formal geochronologic rank.</attrdef>
        <attrdefs>Neuendorf and others (2011)</attrdefs>
        <attrdomv>
          <udom>Examples of values: "Early Proterozoic" or "Late Archean"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>ExistenceConfidence [ExiConf] (ContactsAndFaults, GeologicLines)</attrlabl>
        <attrdef>Confidence that feature exists.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>certain</edomv>
            <edomvd>Identity of a feature can be determined using relevant observations and scientific judgment; therefore, one can be reasonably confident in the credibility of this interpretation.</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>unspecified</edomv>
            <edomvd>Used for the boundary of a map where no confidence is specified.</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>GeologicLines_ID [GeoLin_ID] (GeologicLines)</attrlabl>
        <attrdef>Primary key.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Arbitrary string. Values should be unique within this database. Example of values: "GEL001"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Formation (StandardLithology)</attrlabl>
        <attrdef>Formal stratigraphic rank.</attrdef>
        <attrdefs>Neuendorf and others (2011)</attrdefs>
        <attrdomv>
          <udom>Example of values: "Badwater Greenstone" and "unclassified"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>FullName (DescriptionOfMapUnits)</attrlabl>
        <attrdef>Name of map unit including identification of containing higher rank unit(s), e.g., "Michigamme Formation, Baraga Group, Marquette Range Supergroup".</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Example of values: "mafic and ultramafic rocks intruding Xmf" and "Randville Dolomite, Chocolay Group, Marquette Range Supergroup"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>GeoMaterial [GeoMat] (DescriptionOfMapUnits, GeoMaterialDict)</attrlabl>
        <attrdef>Categorization of map unit based on lithologic and genetic character, term selected from NGMDB standard term list defined in Appendix 1 of GeMS documentation, available at https://doi.org/10.3133/tm11B10</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Examples of values: "Quartzite" and "Metamorphic rock"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>GeoMaterialConfidence [GeoMatConf] (DescriptionOfMapUnits)</attrlabl>
        <attrdef>Describes appropriateness of GeoMaterial term for describing the map unit.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>High</edomv>
            <edomvd>The term and definition adequately characterizes the overall lithologic nature of rocks in the map unit. Regarding the subjective term "adequately characterize," we refer to context and objectives of this classification as described in the GeMS documentaion.</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Glossary_ID [Glo_ID] (Glossary)</attrlabl>
        <attrdef>Primary key.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Arbitrary string. Values should be unique within this database. Example of value: "GLO01"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Group_ (StandardLithology)</attrlabl>
        <attrdef>Formal stratigraphic rank.</attrdef>
        <attrdefs>Neuendorf and others (2011)</attrdefs>
        <attrdomv>
          <udom>Example of values: "Menominee Group" and "unclassified"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>HierarchyKey [HKey] (DescriptionOfMapUnits, GeoMaterialDict)</attrlabl>
        <attrdef>String that records hierarchical structure. Has form nn-nn-nn, nnn-nnn, or similar. Numeric, left-padded with zeros, dash-delimited. Each HierarchyKey fragment of each row MUST be the same length to allow text-based sorting of table entries.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Examples of values: "01-01" and "13"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>IdentityConfidence [IdeConf] (ContactsAndFaults, GeologicLines, MapUnitPolys, OrientationPoints, OverlayPolys)</attrlabl>
        <attrdef>Confidence that feature is correctly identified.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>certain</edomv>
            <edomvd>Identity of a feature can be determined using relevant observations and scientific judgment; therefore, one can be reasonably confident in the credibility of this interpretation.; GeMS (2020)</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>unspecified</edomv>
            <edomvd>Used for the boundary of a map where no confidence is specified.</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Inclination [Inc] (OrientationPoints)</attrlabl>
        <attrdef>Dip or plunge, measured in degrees down from horizontal.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>-9</edomv>
            <edomvd>Null</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <rdom>
            <rdommin>5</rdommin>
            <rdommax>88</rdommax>
            <attrunit>degrees (angular measure)</attrunit>
            <attrmres>1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>IndentedName [IndNam] (GeoMaterialDict)</attrlabl>
        <attrdef>Name with addition of leading spaces to help show rank within a hierarchical list.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Examples of values: "-----Meta-mafic rock" and "-----Meta-felsic and intermediate rock"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>IsConcealed [IsCon] (ContactsAndFaults, GeologicLines)</attrlabl>
        <attrdef>Flag for contacts and faults covered by overlying map unit.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>Y</edomv>
            <edomvd>Yes</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>N</edomv>
            <edomvd>No</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Label (DescriptionOfMapUnits, ContactsAndFaults, GeologicLines, MapUnitPolys, OrientationPoints, OverlayPolys)</attrlabl>
        <attrdef>Plain-text equivalent of the desired annotation for a feature: for example "14 Ma", or "^c" which (when used with the FGDC GeoAge font) results in the geologic map-unit label TRc (with TR run together to make the Triassic symbol).</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>null</edomv>
            <edomvd>null</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <udom>Examples of values: "Great Unconformity" and "XAhg"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Lithology (StandardLithology)</attrlabl>
        <attrdef>Indicates lithology found within this map unit. Domain is CGI’s Simple Lithology vocabulary (available at http://resource.geosciml.org/def/voc/).</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Example of values: "metasiltstone, meta-iron-formation" and "meta-graywacke"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>LocationConfidenceMeters [LocConfM] (ContactsAndFaults, GeologicLines, OrientationPoints)</attrlabl>
        <attrdef>Estimated half-width in meters of positional uncertainty envelope; position is relative to other features in database.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Positive real number.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>LocationSourceID [LocSrcID] (OrientationPoints)</attrlabl>
        <attrdef>Source of location; foreign key to table DataSources.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>DAS03 | DAS04</edomv>
            <edomvd>"DAS03 | DAS04"</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>MapUnit (DescriptionOfMapUnits, MapUnitPolys, OrientationPoints, StandardLithology)</attrlabl>
        <attrdef>Short plain-text identifier of the map unit. Foreign key to DescriptionOfMapUnits table.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>null</edomv>
            <edomvd>null</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Ag</edomv>
            <edomvd>granitic gneiss complex</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>XAhg</edomv>
            <edomvd>Hardwood Gneiss</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xbg</edomv>
            <edomvd>Badwater Greenstone</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xcu</edomv>
            <edomvd>undivided Chocolay Group</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xeb</edomv>
            <edomvd>East Branch Arkose</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xfv</edomv>
            <edomvd>Felch Formation and Vulcan Iron-Formation</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xhf</edomv>
            <edomvd>Hemlock Formation</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xm</edomv>
            <edomvd>metagabbro</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xmc</edomv>
            <edomvd>Calumet Facies</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xmf</edomv>
            <edomvd>Michigamme Formation</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xmg</edomv>
            <edomvd>gabbro, granite, granophyre</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xmi</edomv>
            <edomvd>mafic/ultramafic intrusive rocks</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xmrs</edomv>
            <edomvd>undifferentiated</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xmt</edomv>
            <edomvd>volcanic and intrusive rocks</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xpp</edomv>
            <edomvd>Peavy Pond Complex</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xprg</edomv>
            <edomvd>porphyritic red granite</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xrd</edomv>
            <edomvd>Randville Dolomite</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xsm</edomv>
            <edomvd>Six-Mile Lake Amphibole</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xsq</edomv>
            <edomvd>Sturgeon Quartzite</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Xss</edomv>
            <edomvd>Solberg Schist</edomvd>
            <edomvds>DescriptionOfMapUnits table</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>MapUnitPolys_ID [MUPs_ID] (MapUnitPolys)</attrlabl>
        <attrdef>Primary key.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Arbitrary string. Values should be unique within this database. Example of values: "MUP01"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>MinorLithology (StandardLithology)</attrlabl>
        <attrdef>Secondary rock type of the geologic unit.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>null</edomv>
            <edomvd>null</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <udom>Example of values: "metagraywacke, slate" and "pegmatite"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Name (DescriptionOfMapUnits, MapUnitPolys, StandardLithology)</attrlabl>
        <attrdef>Name of map unit, as shown in boldface in traditional DMU, e.g., "Randville Dolomite". Identifies unit within its hierarchical context.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Examples of values: "Menominee Group" and "undifferentiated"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Notes (ContactsAndFaults, DataSourcePolys, DataSources, GeologicLines, MapUnitPolys, OrientationPoints, OverlayPolys, StandardLithology)</attrlabl>
        <attrdef>Additional information specific to a particular feature or table entry.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>null</edomv>
            <edomvd>null</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <udom>Free text. Example of values: "Xfv buried under Xmf"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>OBJECTID [OID] [FID] (all)</attrlabl>
        <attrdef>Object identification: an Esri default field that contains an integer value to uniquely identify a row in an attribute table.</attrdef>
        <attrdefs>Esri</attrdefs>
        <attrdomv>
          <udom>sequential integer values</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>OrientationConfidenceDegrees [OriConDeg] (OrientationPoints)</attrlabl>
        <attrdef>Estimated angular precision of combined azimuth AND inclination measurements, in degrees.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Positive angular measurement in degrees.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>OrientationPoints_ID [OriPoi_ID] (OrientationPoints)</attrlabl>
        <attrdef>Primary key.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Arbitrary string. Values should be unique within this database. Example of values: "ORP001"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>OrientationSourceID [OriSrcID] (OrientationPoints)</attrlabl>
        <attrdef>Source of orientation data; foreign key to table DataSources.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>DAS03 | DAS04</edomv>
            <edomvd>James and others (1961) | Bayley and others (1966)</edomvd>
            <edomvds>DataSources table</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>OverlayPolys_ID [OvePol_ID] (OverlayPolys)</attrlabl>
        <attrdef>Primary key.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Arbitrary string. Values should be unique within this database. Example of values: "OVP0001"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>ParagraphStyle [ParaSty] (DescriptionOfMapUnits)</attrlabl>
        <attrdef>Token that identifies formatting of paragraph(s) within traditional Description of Map Units that correspond to this table entry.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>DMU1</edomv>
            <edomvd>Paragraph style for formatted description of a first-rank map unit within Description of Map Units table. Times New Roman, Regular, 10 pt, 12 pt leading, left justified, 66 pt left indent, -20 pt 1st line indent, 3 pt space before.</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Heading 2</edomv>
            <edomvd>Heading style for second-order headings within Description of Map Units table. Such headings are subsidiary to the primary heading "Description of Map Units". Times New Roman, Bold, 10 pt, 12 pt leading, all caps, centered, 12 pt space before.</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>PartType (StandardLithology)</attrlabl>
        <attrdef>GeoSciML Vocabularies from CGI; Indicates how lithology is found within this map unit. Domain is CGI’s Geologic Unit Part Role vocabulary (available at http://resource.geosciml.org/def/voc/)</attrdef>
        <attrdefs>http://resource.geosciml.org/def/voc/</attrdefs>
        <attrdomv>
          <edom>
            <edomv>"only part"</edomv>
            <edomvd>The lithology does not have subdivisions.</edomvd>
            <edomvds>http://resource.geosciml.org/def/voc/</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>PlotAtScale [PlotAtSca] (OrientationPoints)</attrlabl>
        <attrdef>At what scale (or larger) should this observation or analysis be plotted? At smaller scales, it should not be plotted. Useful to prevent crowding of display at small scales and to display progressively more data at larger and larger scales. Value is scale denominator.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Positive real number. Using map scale 100000.</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Plunge (OrientationPoints)</attrlabl>
        <attrdef>The inclination of a fold axis, measured in the vertical plane.</attrdef>
        <attrdefs>Neuendorf and others (2011)</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>2</rdommin>
            <rdommax>90</rdommax>
            <attrunit>degrees (angular measure)</attrunit>
            <attrmres>1</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>ProportionTerm (StandardLithology)</attrlabl>
        <attrdef>GeoSciML Vocabularies from CGI; Indicates proportion (as qualitative term) of this map unit in which lithology is found. Recommended domain is CGI’s Proportion Term vocabulary (available at http://resource.geosciml.org/def/voc/); however, map producers may wish to restrict vocabulary to a shorter and less expressive, but easier to use, list.</attrdef>
        <attrdefs>http://resource.geosciml.org/def/voc/</attrdefs>
        <attrdomv>
          <edom>
            <edomv>"dominant"</edomv>
            <edomvd>The most notable lithology is provided.</edomvd>
            <edomvds>http://resource.geosciml.org/def/voc/</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>ProportionValue (StandardLithology)</attrlabl>
        <attrdef>GeoSciML Vocabularies from CGI; available at http://resource.geosciml.org/def/voc/; Indicates proportion (as numeric value) of this map unit in which lithology is found.</attrdef>
        <attrdefs>http://resource.geosciml.org/def/voc/</attrdefs>
        <attrdomv>
          <edom>
            <edomv>null</edomv>
            <edomvd>null</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <udom>null</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>ScientificConfidence (StandardLithology)</attrlabl>
        <attrdef>GeoSciML Vocabularies from CGI; http://resource.geosciml.org/def/voc/; Indicates how confidently existence and identity of lithology is identified as being found within this map unit.</attrdef>
        <attrdefs>http://resource.geosciml.org/def/voc/</attrdefs>
        <attrdomv>
          <udom>Example value: "existence certain"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Shape (ContactsAndFaults, DataSourcePolys, GeologicLines, MapUnitPolys, OrientationPoints, OverlayPolys)</attrlabl>
        <attrdef>An Esri default field that contains the geometry type (point, line, polygon).</attrdef>
        <attrdefs>Esri</attrdefs>
        <attrdomv>
          <edom>
            <edomv>Point</edomv>
            <edomvd>Geometry is a point.</edomvd>
            <edomvds>Esri</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Polygon</edomv>
            <edomvd>Geometry is a polygon.</edomvd>
            <edomvds>Esri</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Polyline</edomv>
            <edomvd>Geometry is a polyline.</edomvd>
            <edomvds>Esri</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Shape_Area (DataSourcePolys, MapUnitPolys, OverlayPolys)</attrlabl>
        <attrdef>An Esri default field that contains the area of a polygon. The value is automatically generated in the units of the feature class.</attrdef>
        <attrdefs>Esri</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.000436</rdommin>
            <rdommax>40741180983.9779</rdommax>
            <attrunit>square meters</attrunit>
            <attrmres>0.000001</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Shape_Length [Shp_Len] (ContactsAndFaults, DataSourcePolys, GeologicLines, MapUnitPolys, OverlayPolys)</attrlabl>
        <attrdef>An Esri default field that contains the length of a line or perimeter. The value is automatically generated in the units of the feature class.</attrdef>
        <attrdefs>Esri</attrdefs>
        <attrdomv>
          <rdom>
            <rdommin>0.1246</rdommin>
            <rdommax>1028235.570831</rdommax>
            <attrunit>meters</attrunit>
            <attrmres>0.000001</attrmres>
          </rdom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Source (DataSources)</attrlabl>
        <attrdef>Plain-text short description that identifies the data source.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Example of values: "Drenth and others (2021)"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>StandardLithology_ID (StandardLithology)</attrlabl>
        <attrdef>Primary key.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Arbitrary string. Values should be unique within this database. Example of values: "STL01"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>StdLith (DescriptionOfMapUnits)</attrlabl>
        <attrdef>Concatenated fields "ProportionTerm" and "Lithology" from the StandardLithology table.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Example of values: "dominant:meta-graywacke"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>StationsID (OrientationPoints)</attrlabl>
        <attrdef>Foreign key to Stations point feature class</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>null</edomv>
            <edomvd>null</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <udom>null</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Supergroup (StandardLithology)</attrlabl>
        <attrdef>Formal stratigraphic rank.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Example values: "Marquette Range Supergroup" and "unclassified"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Symbol (DescriptionOfMapUnits, ContactsAndFaults, GeologicLines, MapUnitPolys, OrientationPoints, OverlayPolys)</attrlabl>
        <attrdef>Reference to a point marker, line symbol, or area-fill symbol that is used on the map graphic to denote the feature: perhaps a star for a K-Ar age locality, or a heavy black line for a fault.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Numbers correspond to FGDC symbolization or a MapUnit. These values also correspond to the supplied Style file. Examples of values: "01.01.01" or "Xbg"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Term (Glossary)</attrlabl>
        <attrdef>Plain-language word for a concept. Values must be unique within database as a whole.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <udom>Values correspond to attributes primarily used in the Type fields. Examples of values: "anticline" or "fault, thrust"</udom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>Type (ContactsAndFaults, GeologicLines, OrientationPoints, OverlayPolys)</attrlabl>
        <attrdef>Classifier that specifies what kind of geologic feature is represented by a database element: that a certain line within feature class ContactsAndFaults is a contact, or thrust fault, or water boundary.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>anticline</edomv>
            <edomvd>A fold, generally convex upward, whose core contains the stratigraphically older rocks.</edomvd>
            <edomvds>Larkin and others (2021)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>bedding, inclined</edomv>
            <edomvd>Bedding inclined to the principal surface of deposition.</edomvd>
            <edomvds>Neuendorf and others (2011)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>bedding, overturned</edomv>
            <edomvd>Bedding inclined to the principal surface of deposition that has tilted beyond the perpendicular. Sequence of strata thus appears reversed.</edomvd>
            <edomvds>Neuendorf and others (2011)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>bedding, vertical</edomv>
            <edomvd>Bedding inclined to the principal surface of deposition that has tilted vertically.</edomvd>
            <edomvds>Neuendorf and others (2011)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>contact</edomv>
            <edomvd>A plane or irregular surface between two types or ages of rock.</edomvd>
            <edomvds>Neuendorf and others (2011)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>dike</edomv>
            <edomvd>A tabular igneous intrusion that cuts across the bedding or foliation of the country rock.</edomvd>
            <edomvds>Neuendorf and others (2011)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>fault</edomv>
            <edomvd>A discrete surface or zone of discrete surfaces separating two rock masses across which one mass has slid past the other.</edomvd>
            <edomvds>Neuendorf and others (2011)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>fold axis</edomv>
            <edomvd>Intersection of fold axial plane with the Earth's surface</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>foliation, inclined</edomv>
            <edomvd>A general term for an inclined planar arrangement of textural or structural features in any type of rock, esp. the locally planar fabric in a rock defined by a fissility, a preferred orientation of crystal planes in mineral grains, a preferred orientation of inequant grain shapes, or from compositional banding. In igneous rocks, planar parallelism of flaky or tabular minerals and mineral aggregates, slabby xenoliths, or flattened vesicles as well as compositional layering. In metamorphic rocks, planar parallelism of flaky minerals and compositional layering.</edomvd>
            <edomvds>modified from DAS07</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>foliation, vertical</edomv>
            <edomvd>A general term for a vertical planar arrangement of textural or structural features in any type of rock, esp. the locally planar fabric in a rock defined by a fissility, a preferred orientation of crystal planes in mineral grains, a preferred orientation of inequant grain shapes, or from compositional banding. In igneous rocks, planar parallelism of flaky or tabular minerals and mineral aggregates, slabby xenoliths, or flattened vesicles as well as compositional layering. In metamorphic rocks, planar parallelism of flaky minerals and compositional layering.</edomvd>
            <edomvds>modified from DAS07</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>Great Unconformity</edomv>
            <edomvd>The contact between Precambrian basement and Paleozoic cover in the study area.</edomvd>
            <edomvds>Drenth and others (2021)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>iron formations</edomv>
            <edomvd>A chemical sedimentary rock, typically thin-bedded and/or finely laminated, containing at least 15% iron of sedimentary origin, and commonly but not necessarily containing layers of chert.</edomvd>
            <edomvds>Neuendorf and others (2011)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>map boundary</edomv>
            <edomvd>A line representing the boundary of the mapping area.</edomvd>
            <edomvds>Larkin and others (2021)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>orientation of fold</edomv>
            <edomvd>Inclined fold hinge of small, minor syncline; showing bearing and plunge</edomvd>
            <edomvds>Federal Geographic Data Committee [prepared for the Federal Geographic Data Committee by the U.S. Geological Survey] (2006)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>outcrops</edomv>
            <edomvd>That part of a geologic formation or structure that appears at the surface of the Earth.</edomvd>
            <edomvds>modified from DAS07</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <edom>
            <edomv>syncline</edomv>
            <edomvd>A fold of which the core contains the stratigraphically younger rocks; it is generally concave upward.</edomvd>
            <edomvds>Neuendorf and others (2011)</edomvds>
          </edom>
        </attrdomv>
      </attr>
      <attr>
        <attrlabl>URL (DataSources)</attrlabl>
        <attrdef>Universal Resource Locator (URL) or Document Object Identifier (DOI), identifies a document on the World Wide Web.</attrdef>
        <attrdefs>GeMS (2020)</attrdefs>
        <attrdomv>
          <edom>
            <edomv>null</edomv>
            <edomvd>null</edomvd>
            <edomvds>GeMS (2020)</edomvds>
          </edom>
        </attrdomv>
        <attrdomv>
          <udom>Example of values: "https://doi.org/10.1016/j.precamres.2021.106205"</udom>
        </attrdomv>
      </attr>
    </detailed>
    <overview>
      <eaover>Database centralupmich.gdb contains the following elements: non-spatial table StandardLithology (20 rows); non-spatial table Glossary (23 rows); non-spatial table GeoMaterialDict (101 rows); non-spatial table DescriptionOfMapUnits (26 rows); non-spatial table DataSources (12 rows); feature dataset GeologicMap which contains feature class ContactsAndFaults (270 features), feature class DataSourcePolys (8 features), feature class OverlayPolys (7832 features), feature class MapUnitPolys (80 features), feature class OrientationPoints (580 features), and feature class GeologicLines (150 features).</eaover>
      <eadetcit>Detailed descriptions of entities, attributes, and attribute values are given in metadata for constituent elements of the database. See also "GeMS (Geologic Map Schema)--a standard format for the digital publication of geologic maps", available at http://ngmdb.usgs.gov/Info/standards/GeMS/.</eadetcit>
    </overview>
  </eainfo>
  <distinfo>
    <distrib>
      <cntinfo>
        <cntorgp>
          <cntorg>U.S. Geological Survey</cntorg>
          <cntper>GS ScienceBase</cntper>
        </cntorgp>
        <cntaddr>
          <addrtype>mailing address</addrtype>
          <address>Denver Federal Center, Building 810, Mail Stop 302</address>
          <city>Denver</city>
          <state>CO</state>
          <postal>80225</postal>
          <country>United States</country>
        </cntaddr>
        <cntvoice>1-888-275-8747</cntvoice>
        <cntemail>sciencebase@usgs.gov</cntemail>
      </cntinfo>
    </distrib>
    <distliab>Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty.</distliab>
    <stdorder>
      <digform>
        <digtinfo>
          <formname>Digital Data</formname>
        </digtinfo>
        <digtopt>
          <onlinopt>
            <computer>
              <networka>
                <networkr>https://doi.org/10.5066/P99X3X07</networkr>
              </networka>
            </computer>
          </onlinopt>
        </digtopt>
      </digform>
      <fees>None. No fees are applicable for obtaining the data set.</fees>
    </stdorder>
  </distinfo>
  <metainfo>
    <metd>20220309</metd>
    <metc>
      <cntinfo>
        <cntperp>
          <cntper>Julie A Herrick</cntper>
          <cntorg>U.S. Geological Survey, DIRECTORS OFFICE</cntorg>
        </cntperp>
        <cntpos>Geologist/Geologic Map Editor</cntpos>
        <cntaddr>
          <addrtype>mailing address</addrtype>
          <address>Mail Stop MS 902, W 6th Ave Kipling St</address>
          <city>Lakewood</city>
          <state>CO</state>
          <postal>80225</postal>
          <country>US</country>
        </cntaddr>
        <cntvoice>303-236-5515</cntvoice>
        <cntemail>jherrick@usgs.gov</cntemail>
      </cntinfo>
    </metc>
    <metstdn>FGDC Content Standard for Digital Geospatial Metadata</metstdn>
    <metstdv>FGDC-STD-001-1998</metstdv>
    <mettc>local time</mettc>
  </metainfo>
</metadata>
