Enomoto, Catherine B. Dulong, Frank T. Milici, Robert C. 2017 spreadsheet Reston, VA U.S. Geological Survey https://doi.org/10.5066/F7KW5DZ8 A U.S. Geological Survey (USGS) provisional geochemical and mineralogical database for hydrocarbon-rich shale in the Appalachian region has been compiled by Catherine Enomoto, Frank Dulong and Robert Milici for online distribution. USGS staff collaborated with geologists in State geological agencies to obtain samples that were analyzed for organic properties, including Rock Eval analyses, total organic carbon (TOC), thermal maturity, and semi-quantitative mineralogy. However, the database also contains previously published data, with appropriate citations included. Previously unpublished data are from samples collected and analyzed between 2007 and 2012 from wells drilled between 1931 and 2009, and from exposures in the northern and central Appalachian basin. Organic richness and thermal maturity data for source rocks help predict the amount of oil and/or gas that may be generated and provide the fundamental information for resource evaluation. Various indicators are used to assess the thermal maturity of source rocks; Tmax is one of the prime Rock-Eval measurements used for determination of thermal maturity. Certain parameters, such as the Hydrogen Index (HI) and the Production Index (PI), are derived from the Rock-Eval pyrolysis measurements and also provide a general indication of the source rock maturity. Other evaluation methods for assessing thermal maturity include vitrinite reflectance (%Ro), the thermal alteration index (TAI), and conodont alteration index (CAI). In general, measured Ro reported as “indigenous” or as “edited population groups,” together with the number of measurements per sample, can be considered the most reliable representation of thermal maturation. Calculated Ro values are considered to be approximations, and Ro values corrected for suppression utilize the methodology of Lo (1993) to correct for anomalously low values of vitrinite reflectance. Semi-quantitative mineralogy data may help the depositional environment, thermal maturity, and fracability of these formations. 20070101 20121231 ground condition Complete As needed -85.84 -73.93 43.06 36.65 USGS Thesaurus mineralogy thermal maturity organic content kerogen conodont geochemistry Total Organic Carbon TOC S1 S2 S3 Tmax HI OI PI Hydrogen Enrichment Index Oxygen Enrichment Index Production Index Transformation Ratio Total Hydrocarbon Generation Potential Rock/Eval pyrolysis hydrocarbons Ro vitrinite reflectance Thermal Alteration Index TAI Inertinite Bitumen Conodont Alteration Index CAI Quartz Feldspar Carbonate Illite Smectite Kaolinite Chlorite Pyrite Clay LOI Loss on Ignition USGS Metadata Identifier USGS:59d268abe4b05fe04cc2362b Geographic Names Information System (GNIS) Appalachian Basin Kentucky New York Ohio Pennsylvania Virginia West Virginia Maryland Geolex - U.S. Geologic Names Lexicon Marcellus Shale Ohio Shale Geneseo Shale Rhinestreet Shale Martinsburg Shale Bedford Shale Chattanooga Shale Chemung Formation Cleveland Member Chambersburg Limestone Conococheague Limestone Corriganville Limestone Eau Claire Formation Genesee Formation Burket Shale Greenbrier Limestone Hamilton Group Harrell Shale Huron Member Java Formation Keyser Limestone Licking Creek Limestone Mahantango Formation McKenzie Formation Millboro Shale Needmore Shale New Creek Limestone New Market Limestone Olentangy Shale Oriskany Sandstone Pinesburg Station Dolomite Rockdale Run Formation Shriver Chert Skaneateles Shale Stonehenge Limestone Sunbury Shale Tonoloway Limestone Tully Limestone West Falls Formation Wills Creek Shale USGS Thesaurus: time periods Cambrian Silurian Ordovician Devonian Mississippian none none Catherine Enomoto U.S. Geological Survey mailing and physical

12201 Sunrise Valley Drive

Reston VA 20192 USA 703-648-6439 cenomoto@usgs.gov Sample collection and data review performed by: James Leone (New York Geological Survey); John Harper (Pennsylvania Bureau of Topographic and Geological Survey); Jaime Kostelnik (Pennsylvania Bureau of Topographic and Geological Survey); Ronald Riley (Ohio Geological Survey); Katherine Lee Avary (West Virginia Geological and Economic Survey -retired); Brian Grothaus (West Virginia Geological and Economic Survey); David C. Harris (Kentucky Geological Survey); and William L. Lassetter (Virginia Division of Geology and Mineral Resources) No formal attribute accuracy tests were conducted No formal logical accuracy tests were conducted Data set is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. No formal positional accuracy tests were conducted No formal positional accuracy tests were conducted Harris, A.G., Stamm, N.R., Repetski, J.E., Stamm, R.G., and Parker, R.A. 1994 tabular digital data Reston, VA U.S. Geological Survey https://pubs.usgs.gov/mf/2239/report.pdf paper 19930101 19941231 1994 Harris, A.G., and others, 1994 Miscellaneous Field Studies 2239: age and thermal maturity of Ordovician samples, location information, formation and member names, and sample type Repetski, J.E., Ryder, R.T., Weary, D.J., Harris, A.G., Trippi, M.H. 2008 tabular digital data Reston, VA U.S. Geological Survey https://pubs.usgs.gov/sim/3006/ online 20070101 20081231 2008 Repetski, J.E., and others, 2008 Scientific Investigations Map 3006: thermal maturity of Devonian and Ordovician samples, location information, lease name, formation name, sampled interval, lease name, and geochemistry data Riley, R.A., Erenpreiss, M.S., Wells, J.G. 2012 tabular digital data Ohio Department of Natural Resources, Division of Geological Survey, contract report funded by U.S. Geological Survey (00200003512) Ohio Department of Natural Resources, Division of Geological Survey, contract report funded by U.S. Geological Survey (00200003512) paper 20120101 20121231 2012 Riley, R.A., and others, 2012 thermal maturity of Ordovician samples, location information, lease name, formation name, sampled interval, lease name, and geochemistry data USGS Researcher executed cooperative agreements with State geological surveys in New York, Pennsylvania, Ohio, Kentucky, Virginia and West Virginia. The cooperative agreements with the State geological surveys stated that staff at State surveys will acquire rock samples in organic-rich shale formations that may be hydrocarbon source rocks. 2012 Rock samples (well core, well cuttings, outcrop) were collected by staff of State geological surveys. Staff at State geological surveys sent rock samples to USGS and provided identifier information about each rock sample, including latitude and longitude of sample site and formation sampled. 2012 Rock samples were given unique sample number for tracking purposes and sent to third-party laboratories to perform screening source rock geochemical analyses called RockEval. 2012 Rock samples were measured for semi-quantitative mineralogy in USGS X-ray diffraction laboratory in Reston, VA. 2015 Results of geochemical analyses and X-ray diffraction mineralogy were entered into spreadsheet with USGS-assigned identifying data related to each rock sample. 20161201 Data in Repetski and others (2008) was added to the spreadsheet, and "Repetski, J.E., and others, 2008" was added as the source of the data. 2012 Data in Harris, A.G., and others (1994) was added to the spreadsheet, and "Harris, A.G., and others, 1994" was added as the source of the data. 2012 Data in Riley, R.A., and others (2012) was added to the spreadsheet, and "Riley, R.A., and others, 2012" was added as the source of the data. 2012 SDTS object count: 1024 Point 0.01 0.01 Decimal degrees NAD27 6378206.4 294.9786982 local surface 1.0 feet Explicit depth coordinate included with horizontal coordinates Selected geochemistry and mineralogy of Paleozoic strata in northern and central Appalachian basin, U.S.A., 1994-2012 Provisional geochemical and mineralogical database for Devonian and Ordovician organic matter-rich shale in the Appalachian region. The database contains previously published data, and data from samples collected and analyzed between 2007 and 2012 from wells drilled between 1931 and 2009, and from exposures in the northern and central Appalachian basin. Catherine Enomoto, Frank Dulong and Robert Milici API Well Number Hyphenated number assigned by the American Petroleum Institute. First two numbers identify the state of location, next three numbers identify the county of location and next five numbers are assigned sequentially by date of permit application submitted by well operating company. American Petroleum Institute and State regulatory agencies American Petroleum Institute Number Kentucky: http://kgs.uky.edu/kgsweb/DataSearching/oilsearch.asp; New York: http://www.dec.ny.gov/cfmx/extapps/GasOil/search/wells/index.cfm; Ohio: http://oilandgas.ohiodnr.gov/well-information/oil-gas-well-database; Pennsylvania: http://dcnr.state.pa.us/topogeo/econresource/oilandgas/EDWIN_home/index.htm; Virginia: https://www.dmme.virginia.gov/DGOinquiry/frmMain.aspx; West Virginia: http://www.wvgs.wvnet.edu/oginfo/pipeline/pipeline2.asp; Maryland: http://dnr.maryland.gov/Pages/default.aspx USGS ID Number Arbitrary number assigned by USGS staff on this project for organizational and tracking purposes. An internal number, expressed as an identifier that includes abbreviation for state name of sample source location. Used for sample and data tracking purposes. Defined by metadata compiler. Character string of numbers and letters, used to identify sample. State ID Number Number assigned by State agency to rock sample from which a sub-sample was collected and sent to USGS for analysis. Defined by metadata compiler. Number assigned by State agency to rock sample from which a sub-sample was collected and sent to USGS for analysis. Each state uses different system for labelling rock samples for organizational purposes. Company ID Number Well number assigned by the company that drilled the well. Each company uses different system for labelling wells for organizational purposes. Defined by metadata compiler. For samples derived from an oil or gas well, this number was assigned by the company that drilled the well. Each company uses different system for labelling wells for organizational purposes. Drilling Date The date well was drilled, if provided. Defined by metadata compiler. 1931 2009 Calendar year State Name of state where sample was obtained. The National Map Ohio a data point collected in the U.S. state of Ohio https://nationalmap.gov/boundaries.html Pennsylvania a data point collected in the U.S. state of Pennsylvania https://nationalmap.gov/boundaries.html Virginia a data point collected in the U.S. state of Virginia https://nationalmap.gov/boundaries.html West Virginia a data point collected in the U.S. state of West Virginia https://nationalmap.gov/boundaries.html Maryland a data point collected in the U.S. state of Maryland https://nationalmap.gov/boundaries.html New York a data point collected in the U.S. state of Maryland https://nationalmap.gov/boundaries.html Kentucky a data point collected in the U.S. state of Kentucky https://nationalmap.gov/boundaries.html County County name in State where sample was obtained. The National Map The National Map https://nationalmap.gov/boundaries.html Quadrangle 7.5-minute quadrangle name where sample was obtained. The National Map The National Map https://nationalmap.gov/ustopo/index.html Latitude DD27 Location of sample in latitude decimal degrees, North American Datum 1927. A horizontal value for latitude collected from a GPS device in the field or recorded in regulatory agency database. In this dataset the latitude values range from 36.65 to 43.06 decimal degrees. North American Datum 1927 was used. https://nationalmap.gov/index.html The National Map -90 90 degrees. Attribute_Meaurement_Resolution is 0.000001 Longitude DD27 Location of sample in longitude decimal degrees, North American Datum 1927. A horizontal value for longitude collected from a GPS device in the field or recorded in regulatory agency database. In this dataset the longitude values range from -85.84 to -73.93 decimal degrees. North American Datum 1927 was used. https://nationalmap.gov/index.html The National Map -180 180 degrees. Attribute_Meaurement_Resolution is 0.000001 Elevation (feet) Surface elevation in feet of location where rock sample was collected. If for an outcrop sample, this is ground elevation as measured by GPS device or deduced from a topographic map. https://nationalmap.gov/index.html The National Map 0 10,000 feet. Attribute_Meaurement_Resolution is 1 Kelly Bushing elevation (feet) Elevation of kelly bushing in feet at rock sample collection if sample is from an oil or gas well. Kelly bushing is the drill rig floor elevation and is the datum from which wireline logs and sample depths are measured. American Petroleum Institute 0 10,000 feet. Attribute_Meaurement_Resolution is 1 Sample Collection Date Date provided by collector, if given, of when rock sample was collected from outcrop, well site or rock repository. calendar date 2005 2012 year Collector Name of person who collected the rock sample from the outcrop, well site or rock repository. Defined by metadata compiler. First and/or Last name, with or without initials, of individual who collected the rock sample from the outcrop, well site or rock repository. Lease or Company name Name of lease where well drilled or of company that drilled well, if provided. Defined by metadata compiler. Textual name of lease where well drilled or of company that drilled well, if provided. This information is stored by state regulatory agencies. Total Depth (feet) If rock sample is from an oil or gas well, this is the total depth of the well from which the rock sample was collected, if provided. Go to http://www.api.org/ for definition of total depth. American Petroleum Institute 0 45,000 feet Strat Unit or Age at Total Depth Name of geologic stratigraphic unit or geologic age of formation at total depth of well drilled. USGS Thesaurus: time periods; and National Geologic Map Database: Geolex Name of geologic formation or geologic age of formation at total depth of well drilled from which sample was collected. Dataset can be sorted on this attribute if necessary. Go to https://ngmdb.usgs.gov/Geolex/search for formation names. Sampled intervals (feet) From- and to- depths of sampled interval(s); multiple depths indicate composited samples. Defined by metadata compiler. From- and to- depths of sampled interval(s); multiple depths indicate composited samples. This helps with verifying specificity of depth of analysis. Producing Strat Unit If rock sample is from a well, the name of the producing geologic formation in the well, if provided. National Geologic Map Database: Geolex Name of producing geologic formation in well, if provided. May or may not be related to geologic formation that was sampled. Go to https://ngmdb.usgs.gov/Geolex/search to search for formation names and ages. Well type General type of well (e.g. dry, oil, gas), from which rock sample was collected. Go to http://www.api.org/ for catalog of well types. American Petroleum Institute Dry Well was non-productive for oil or gas. http://www.api.org/ Gas Well was productive for natural gas. http://www.api.org/ Injection Fluid was injected into well for unknown purpose. http://www.api.org/ Oil/Gas Well was productive for gas and oil. http://www.api.org/ Storage Fluid was pumped into well to be held until needed at a later date. http://www.api.org/ Stratigraphic Test Well was drilled to collect data with no expectation of commercial productivity. http://www.api.org/ Core Sample Number State-assigned identification number of core from which rock sample was obtained. Defined by metadata compiler. State-assigned identification number of core from which rock sample was obtained. The nomenclature varies with each state. Gas Field Name Name of gas field in which well was drilled from which rock sample was collected. Defined by metadata compiler. Name of gas field in which well was drilled from which rock sample was collected. The field name may help locate the well in addition to other geographic information. Series/System Geologic age (series or system) of sampled interval. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Cambrian Geologic age of sampled interval is Cambrian. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Devonian Geologic age of sampled interval is Devonian. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Upper Ordovician Geologic age of sampled interval is Upper Ordovician. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Upper Cambrian Geologic age of sampled interval is Upper Cambrian. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Lower Devonian Geologic age of sampled interval is Lower Devonian. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Lower Mississippian Geologic age of sampled interval is Lower Mississippian. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Middle Devonian Geologic age of sampled interval is Middle Devonian. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Middle Ordovician Geologic age of sampled interval is Middle Ordovician. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Middle/Upper Devonian Geologic age of sampled interval is Middle/Upper Devonian. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Mississippian Geologic age of sampled interval is Mississippian. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Ordovician Geologic age of sampled interval is Ordovician. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Silurian Geologic age of sampled interval is Silurian. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Upper Devonian Geologic age of sampled interval is Upper Devonian. National Geologic Map Database Geolex: https://ngmdb.usgs.gov/Geolex/search Formation Name of geologic formation from which rock sample was taken. National Geologic Map Database Geolex, https://ngmdb.usgs.gov/Geolex/search. Bedford Shale Rock sample was taken from Bedford Shale. Defined by metadata compiler. Chambersburg Limestone Rock sample was taken from Chambersburg Limestone. Defined by metadata compiler. Chattanooga Shale Rock sample was taken from Chattanooga Shale. Defined by metadata compiler. Chemung Formation Rock sample was taken from Chemung Formation. Defined by metadata compiler. Conococheague Limestone Rock sample was taken from Conococheague Limestone. Defined by metadata compiler. Corriganville Limestone Rock sample was taken from Corriganville Limestone. Defined by metadata compiler. Eau Claire Formation Rock sample was taken from Eau Claire Formation. Defined by metadata compiler. Edinburg Formation Rock sample was taken from Edinburg Formation. Defined by metadata compiler. Genesee Formation Rock sample was taken from Genesee Formation. Defined by metadata compiler. Greenbrier Limestone Rock sample was taken from Greenbrier Limestone. Defined by metadata compiler. Hamilton Group Rock sample was taken from Hamilton Group. Defined by metadata compiler. Harrell Shale Rock sample was taken from Harrell Shale. Defined by metadata compiler. Java Formation Rock sample was taken from Java Formation. Defined by metadata compiler. Keyser Limestone Rock sample was taken from Keyser Limestone. Defined by metadata compiler. Licking Creek Limestone Rock sample was taken from Licking Creek Limestone. Defined by metadata compiler. Marcellus Shale Rock sample was taken from Marcellus Shale. Defined by metadata compiler. Mahantango Formation Rock sample was taken from Mahantango Formation. Defined by metadata compiler. Martinsburg Formation Rock sample was taken from Martinsburg Formation. Defined by metadata compiler. McKenzie Formation Rock sample was taken from McKenzie Formation. Defined by metadata compiler. Millboro Shale Rock sample was taken from Millboro Shale. Defined by metadata compiler. Needmore Shale Rock sample was taken from Needmore Shale. Defined by metadata compiler. New Creek Limestone Rock sample was taken from New Creek Limestone. Defined by metadata compiler. New Market Limestone Rock sample was taken from New Market Limestone. Defined by metadata compiler. Olentangy Shale Rock sample was taken from Olentangy Shale. Defined by metadata compiler. Ohio Shale Rock sample was taken from Ohio Shale. Defined by metadata compiler. Oriskany Sandstone Rock sample was taken from Oriskany Sandstone. Defined by metadata compiler. Pinesburg Station Dolomite Rock sample was taken from Pinesburg Station Dolomite. Defined by metadata compiler. Rockdale Run Formation Rock sample was taken from Rockdale Run Formation. Defined by metadata compiler. Stonehenge Limestone Rock sample was taken from Stonehenge Limestone. Defined by metadata compiler. Sunbury Shale Rock sample was taken from Sunbury Shale. Defined by metadata compiler. Skaneateles Shale Rock sample was taken from Skaneateles Shale. Defined by metadata compiler. Shriver Chert Rock sample was taken from Shriver Chert. Defined by metadata compiler. Tonoloway Limestone Rock sample was taken from Tonoloway Limestone. Defined by metadata compiler. Tully Limestone Rock sample was taken from Tully Limestone. Defined by metadata compiler. West Falls Formation Rock sample was taken from West Falls Formation. Defined by metadata compiler. Wills Creek Formation Rock sample was taken from Wills Creek Formation. Defined by metadata compiler. Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Burket Shale Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Cleveland Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Cherry Valley Limestone Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Deer Valley Limestone Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Geneseo Shale Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Huron Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Loyalhanna Limestone Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Cherry Run Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names Defined by metadata compiler. Penn Yan Shale Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Pipe Creek Shale Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Pokejoy Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Purcell Limestone Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Rhinestreet Shale Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Stickley Run Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Wymps Gap Member Name of member within geologic formation from which sample was taken; in some instances, the names used follow state geological survey or operator usage and are not necessarily formally recognized names. Defined by metadata compiler. Sample Type Type of rock sample provided to USGS for analysis. One of three types: core, cuttings, outcrop, or a combination of two of these. Sample type provided by sample collector. Defined by metadata compiler. core Type of rock sample provided to USGS for analysis. Sample type provided by sample collector Defined by metadata compiler. core/cuttings Type of rock sample provided to USGS for analysis. Sample type provided by sample collector Defined by metadata compiler. cuttings Type of rock sample provided to USGS for analysis. Sample type provided by sample collector Defined by metadata compiler. outcrop Type of rock sample provided to USGS for analysis. Sample type provided by sample collector Defined by metadata compiler. Sample Collection Method Method of sample collection. Defined by metadata compiler. single single is used for outcrop samples or 1-2 inch samples from conventional cores from wells Defined by metadata compiler. interval interval samples are the shortest depth interval labeled on well cutting bags Defined by metadata compiler. composite composite samples are when multiple well cutting bags have been sampled and are combined to form one sample for analysis Defined by metadata compiler. Lithologic and stratigraphic description Description of sample’s color, major mineral constituency, grain-size, and possibly stratigraphic position. Defined by metadata compiler. Description of sample’s color, major mineral constituency, grain-size, and possibly stratigraphic position. For this dataset, dark gray and black samples were selected over other colors when collected from outcrop, cuttings and cores. Total Organic Carbon (TOC) weight percent A qualitative measure of petroleum potential (in weight percent) indicating the quantity of organic carbon preserved in a rock sample. The quantity of organic carbon preserved in a rock sample, derived by LECO analysis performed by third-party geochemical laboratories per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. A TOC value of 0.5 percent generally is regarded as the minimum for defining a petroleum source rock, but most geochemists consider a TOC of greater than 1.0 percent as a good source rock for generating petroleum potential. Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. 0 50 weight percent S1 S1 values (free hydrocarbons), measured in mg HC/g of rock; the free hydrocarbons already generated that are volatilized out of the rock without cracking the kerogen. The hydrocarbons are distilled out of the rock sample at initial heating to a temperature of 350°C. A measured S1 value of greater than 1 is considered to be a good source rock. S1 values (free hydrocarbons), measured in mg HC/g of rock, derived by Rock-Eval II and Hawk pyrolysis analysis performed by third-party geochemical laboratories per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. 0 50 mg HC/g rock S2 Values (generated hydrocarbons), measured in mg HC/g of rock; the amount of hydrocarbons generated through thermal cracking of kerogen and heavy hydrocarbons. A S2 value of greater than 5 is considered to have good source rock generative potential. Derived by Rock-Eval II and Hawk pyrolysis analysis performed by third-party geochemical laboratories per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. 0 100 mg HC/g rock S3 Values (generated carbon dioxide) measured in mg CO2/g of rock; the oxygen-containing compounds (trapped CO2) released during pyrolysis up to a temperature of 390°C. Values derived by Rock-Eval II and Hawk pyrolysis analysis performed by third-party geochemical laboratories per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. 0 10 mg HC/g rock Tmax The temperature (°C) of maximum release of hydrocarbons during Rock-Eval kerogen pyrolysis; this value occurs at the top of the S2 peak. The oil window using Tmax measurements ranges from 435 to 470°C. Values are derived by Rock-Eval II and Hawk pyrolysis analysis performed by third-party geochemical laboratories per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. 300 ("-1" means "not measured or invalid value for Tmax.") 600 degrees Celsius Hydrogen Index (HI) The ratio of hydrogen (S2 in mg HC/g) to TOC, as expressed in the formula [HI = (S2/TOC) x100].The HI represents the quantity of pyrolyzable organic compounds or hydrocarbons and is proportional to the amount of hydrogen contained within the kerogen; a HI greater than 300 is considered to be in the oil window. Values are derived by Rock-Eval II and Hawk pyrolysis analysis performed by third-party geochemical laboratories per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. 0 2000 mg HC/g TOC Oxygen Index (OI) The ratio of oxygen (S3 in mg HC/g) to TOC, as expressed in the formula [OI = (S3/TOC) x100]. Values are derived by Rock-Eval II and Hawk pyrolysis analysis performed by third-party geochemical laboratories per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. 0 500 mg CO2/g TOC S2/S3 The ratio of S2 and S3 helps determine the type of organic matter, as the different types of kerogens produce different value ranges. Values are derived by Rock-Eval II and Hawk pyrolysis analysis performed by third-party geochemical laboratories per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. 0 500 mg HC/mg CO2 (S1/TOC)*100 The index value of the free hydrocarbons in a sample, and called Oil Saturation Index. Values are derived by Rock-Eval II and Hawk pyrolysis analysis performed by third-party geochemical laboratories per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. 0 500 mg HC/g TOC Production Index (PI) The ratio of the amount of petroleum already generated by the kerogen to the total amount of petroleum that the kerogen is capable of generating. The PI is expressed by the formula [PI = S1/(S1+S2)]; this relationship is used to characterize the evolution of the organic matter because PI generally will increase with depth. The oil window generally is within a PI range of 0.1–0.4. Values are derived by Rock-Eval II and Hawk pyrolysis analysis performed by third-party geochemical laboratories per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. 0 1 index units S1+S2 The total hydrocarbon generation potential in mg HC/g of rock. Represents the maximum quantity of hydrocarbons that a mature source rock could generate. It includes the amount of hydrocarbons that have already been generated (S1) and also the amount that could still be generated if maturation continues (S2). It is also known as the transformation ratio. Values are derived by Rock-Eval II and Hawk pyrolysis analysis performed by third-party geochemical laboratories per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. 0 100 mg HC/g rock Date of Analysis Date laboratory performed analysis, if provided. Defined by metadata compiler. Calendar date laboratory performed analysis, if provided. Laboratory Name of laboratory providing pyrolysis or thermal maturity data. Defined by metadata compiler. Name of laboratory providing LECO and Rock-Eval II and Hawk pyrolysis per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. Laboratory Number Sample identification number assigned by third-party laboratory that performed LECO, Rock-Eval II and Hawk pyrolysis. Defined by metadata compiler. Sample identification number assigned by third-party laboratory that performed LECO, Rock-Eval II and Hawk pyrolysis. Used for tracking sample and its related data. Calculated %Ro Calculated vitrinite reflectance (%Ro), as expressed in the formula [%Ro = 0.0180*Tmax-7.16]. Tmax values are derived by Rock-Eval II and Hawk pyrolysis analysis performed by geochemical laboratories per typical methods as described in Espitalie, J., G. Deroo, and F. Marquis, 1985, Rock-Eval pyrolysis and its applications: Revue De L Institut Francais Du Petrole, v. 40, p. 563-579. Equation for Calculated %Ro is from Jarvie, D.M., Claxton, B.L., Henk, F., Breyer, J.T., 2001, Oil and shale gas from the Barnett Shale, Fort Worth basin, Texas. American Association of Petroleum Geologists Annual Meeting Program 10, p. A100. Jarvie, D.M., Claxton, B.L., Henk, F., Breyer, J.T., 2001, Oil and shale gas from the Barnett Shale, Fort Worth basin, Texas. American Association of Petroleum Geologists Annual Meeting Program 10, p. A100. 0; "-1" means "not measured or invalid value for Tmax." 100 Percent Number of %Ro readings Number of total readings taken to report an average %Ro in reflected white light under oil immersion. The reported vitrinite reflectance value is an average of many measurements (20 or more for shales). Assists in assessing quality of value in Total Sample Vitrinite Reflectance (%Ro). American Society for Testing and Materials (ASTM), 2015, Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks. Annual book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke sec. 5, v. 5.06: ASTM International, West Conshohocken, PA (http://www.astm.org/Standards/D7708.htm. 0 100 Quantity Total Sample %Ro Based on measuring the percentage of light reflected from the vitrinite maceral at high magnification (400 - 750x) under oil immersion. Performed with a microscope equipped with an oil-immersion objective lens and photometer. American Society for Testing and Materials (ASTM), 2015, Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks. Annual book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke sec. 5, v. 5.06: ASTM International, West Conshohocken, PA (http://www.astm.org/Standards/D7708.htm. 0 100 Percent Number of Indigenous %Ro Readings Number of measurements of indigenous vitrinite, which is the population in the sample that is used to infer thermal maturity. American Society for Testing and Materials (ASTM), 2015a. Standard Test Method forMicroscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks. Annual book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke sec. 5, v. 5.06: ASTM International, West Conshohocken, PA (http://www.astm.org/Standards/D7708.htm. Number of %Ro measurements; to assist in assessing quality of Indigenous %Ro (mean) value. American Society for Testing and Materials (ASTM), 2015, Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks. Annual book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke sec. 5, v. 5.06: ASTM International, West Conshohocken, PA (http://www.astm.org/Standards/D7708.htm. Indigenous %Ro (mean) The mean value of all indigenous vitrinite measurements in the sample that is used to infer thermal maturity. American Society for Testing and Materials (ASTM), 2015, Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks. Annual book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke sec. 5, v. 5.06: ASTM International, West Conshohocken, PA (http://www.astm.org/Standards/D7708.htm. 0 100 Percent %Ro Standard Deviation Standard Deviation is an indication of the variability or dispersion of values in the population of values used to calculate the mean value. American Society for Testing and Materials (ASTM), 2015, Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks. Annual book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke sec. 5, v. 5.06: ASTM International, West Conshohocken, PA (http://www.astm.org/Standards/D7708.htm. 0 100 Percent %Ro Mean corrected for suppression Calculated mean of values being corrected for anomalously low values using method according to Lo (1993). Lo, H.B., 1993, Correction criteria for the suppression of vitrinite reflectance in hydrogen-rich kerogens - preliminary guidelines: Organic Geochemistry, v. 20, p. 653-657, http://www.sciencedirect.com/science/article/pii/014663809390051C. 0 100 Percent TAI Color Abbreviation of color used to create TAI value Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. B Brown Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. DBDG Dark brown-dark gray Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. DGBL Dark gray-black Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. BLK black Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. GLY Green-light yellow Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. Y Yellow Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. YO Yellow-orange Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. OB Orange-brown Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. LB light brown Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. Thermal Alteration Index (TAI) Determined by the color of exinite (pollen, spores) in the sample. The numbers assigned to the colors can range from 1 to 5. The TAI values in this dataset range 2.0 to 4.0. TAI up to 2+ or 2.3 is thermally immature; TAI 2+ or 2.3 to 3+ or 3.3 is in oil window thermal maturity; TAI 3+ or 3.3 to 4- or 3.7 is in condensate and/or wet gas thermal maturity; TAI 4- or 3.7 and higher is in dry gas window thermal maturity. Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. 1 5 Index number Amorphous debris % laboratory categorization of organic matter, in percent; tr means trace amount Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. 0 100 Percent Finely disseminated organic matter % laboratory categorization of organic matter, in percent; tr means trace amount Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. 0 100 Percent Herbaceous Plant Debris % laboratory categorization of organic matter, in percent; tr means trace amount Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. 0 100 Percent Woody Plant Debris % laboratory categorization of organic matter, in percent; tr means trace amount. There were no quantities of this attribute recorded for samples in this dataset. Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. 0 100 Percent Coaly Fragments % laboratory categorization of organic matter, in percent; tr means trace amount. There were no quantities of this attribute recorded for samples in this dataset. Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. 0 100 Percent Algal Debris % laboratory categorization of organic matter, in percent; tr means trace amount. There were no quantities of this attribute recorded for samples in this dataset. Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. 0 100 Percent Palynomorphs % laboratory categorization of organic matter, in percent; tr means trace amount Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. 0 100 Percent Preservation in Source Material Laboratory categorization of organic matter in each sample. Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. good good Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. fair fair Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. fair-to-poor fair-to-poor Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. poor poor Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. very poor very poor Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. Recovery from Source Material Laboratory categorization of organic matter in each sample. Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. good good Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. very poor very poor Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. barren barren Staplin, F.L., 1969, Sedimentary organic matter, organic metamorphism and oil and gas occurrence: Bull. Can. Petrol. Geol. 17, 47–66. Indigenous Vitrinite % Laboratory categorization of kerogen composition, in percent; tr means trace amount. American Society for Testing and Materials (ASTM), 2015, Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks. Annual book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke sec. 5, v. 5.06: ASTM International, West Conshohocken, PA (http://www.astm.org/Standards/D7708.htm) 0 100 Percent Caved Vitrinite % Laboratory categorization of kerogen composition, in percent; tr means trace amount. American Society for Testing and Materials (ASTM), 2015, Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks. Annual book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke sec. 5, v. 5.06: ASTM International, West Conshohocken, PA (http://www.astm.org/Standards/D7708.htm). 0 100 Percent Recycled/Oxidized Vitrinite % Laboratory categorization of kerogen composition, in percent; tr means trace amount. American Society for Testing and Materials (ASTM), 2015, Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks. Annual book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke sec. 5, v. 5.06: ASTM International, West Conshohocken, PA (http://www.astm.org/Standards/D7708.htm). 0 100 Percent Inertinite % laboratory categorization of kerogen composition, in percent; tr means trace amount American Society for Testing and Materials (ASTM), 2015, Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks. Annual book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke sec. 5, v. 5.06: ASTM International, West Conshohocken, PA (http://www.astm.org/Standards/D7708.htm). 0 100 Percent Solid Bitumen % Laboratory categorization of kerogen composition, in percent; tr means trace amount. American Society for Testing and Materials (ASTM), 2015, Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks. Annual book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke sec. 5, v. 5.06: ASTM International, West Conshohocken, PA (http://www.astm.org/Standards/D7708.htm). 0 100 Percent Amorphous Kerogen % laboratory categorization of kerogen composition, in percent; tr means trace amount American Society for Testing and Materials (ASTM), 2015, Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks. Annual book of ASTM Standards: Petroleum Products, Lubricants, and Fossil Fuels; Gaseous Fuels; Coal and Coke sec. 5, v. 5.06: ASTM International, West Conshohocken, PA (http://www.astm.org/Standards/D7708.htm). 0 100 Percent Kerogen Composition Comments Miscellaneous comments recorded by laboratory performing visual organic petrology. Defined by metadata compiler. Miscellaneous comments recorded by laboratory performing visual organic petrology. CAI Min Minimum conodont color alteration index value measured for an individual sample. Epstein, A.G., Epstein, J.B., and Harris, L.D., 1977, Conodont color alteration - an index to organic metamorphism: U.S. Geological Survey Professional Paper 995, 27 p. 1 5 index value CAI Max Maximum conodont color alteration index value measured for an individual sample. Epstein, A.G., Epstein, J.B., and Harris, L.D., 1977, Conodont color alteration - an index to organic metamorphism: U.S. Geological Survey Professional Paper 995, 27 p. 1 5 index value CAI Field Number Field identification number assigned to samples analyzed for conodont alteration index color. Defined by metadata compiler. field identification number assigned to samples by researchers. Epstein, A.G., Epstein, J.B., and Harris, L.D., 1977, Conodont color alteration - an index to organic metamorphism: U.S. Geological Survey Professional Paper 995, 27 p. USGS ID Number Arbitrary number assigned by USGS staff on this project for organizational and tracking purposes; this column is duplicated of second column and was added to reduce amount of scrolling by user. Defined by metadata compiler. An internal number, expressed as an identifier that includes abbreviation for state name of sample source location. Used for sample and data tracking purposes; this column is added to reduce amount of scrolling by user. This column was duplicated so that the following columns of semi-quantitative mineralogy data are easily associated with rock sample. Used for sample and data tracking purposes. Strat unit/member Lowest level of stratigraphic unit assigned to sample analyzed for XRD mineralogy. National Geologic Map Database Geolex, https://ngmdb.usgs.gov/Geolex/search Lowest level of stratigraphic unit assigned to sample analyzed for XRD mineralogy. This is the entry in the Member cell; or, if no data in the Member cell, name in Formation cell for this sample was used. National Geologic Map Database Geolex, https://ngmdb.usgs.gov/Geolex/search. Quartz % Laboratory categorization of quartz mineral composition, in weight percent. Hosterman, J.W. and Dulong, F.T., 1989, A computer program for semiquantitative mineral analysis by X-ray powder diffraction: in CMS Workshop Lectures, Vol. 1, Quantitative Mineral Analysis of Clays, D.R. Pevear and F.A. Mumpton, eds. The Clay Minerals Society, Evergreen, Colorado, p. 37-50. 0 100 Percent Feldspar % Laboratory categorization of feldspar mineral composition, in weight percent. Hosterman, J.W. and Dulong, F.T., 1989, A computer program for semiquantitative mineral analysis by X-ray powder diffraction: in CMS Workshop Lectures, Vol. 1, Quantitative Mineral Analysis of Clays, D.R. Pevear and F.A. Mumpton, eds. The Clay Minerals Society, Evergreen, Colorado, p. 37-50. 0 100 Percent Carbonate % Laboratory categorization of carbonate mineral composition, in weight percent. Hosterman, J.W. and Dulong, F.T., 1989, A computer program for semiquantitative mineral analysis by X-ray powder diffraction: in CMS Workshop Lectures, Vol. 1, Quantitative Mineral Analysis of Clays, D.R. Pevear and F.A. Mumpton, eds. The Clay Minerals Society, Evergreen, Colorado, p. 37-50. 0 100 Percent Illite/Smectite % Laboratory categorization of mixed layer illite/smectite mineral composition, in weight percent. Hosterman, J.W. and Dulong, F.T., 1989, A computer program for semiquantitative mineral analysis by X-ray powder diffraction: in CMS Workshop Lectures, Vol. 1, Quantitative Mineral Analysis of Clays, D.R. Pevear and F.A. Mumpton, eds. The Clay Minerals Society, Evergreen, Colorado, p. 37-50. 0 100 Percent Illite % Laboratory categorization of illite mineral composition, in weight percent. Hosterman, J.W. and Dulong, F.T., 1989, A computer program for semiquantitative mineral analysis by X-ray powder diffraction: in CMS Workshop Lectures, Vol. 1, Quantitative Mineral Analysis of Clays, D.R. Pevear and F.A. Mumpton, eds. The Clay Minerals Society, Evergreen, Colorado, p. 37-50. 0 100 Percent Kaolinite % Laboratory categorization of kaolinite mineral composition, in weight percent. Biscaye, P.E., 1964, Distinction between kaolinite and chlorite in recent sediments by X-ray diffraction. American Mineralogist, v. 46, pp.1281-1289. 0 100 Percent Chlorite % Laboratory categorization of chlorite mineral composition, in weight percent. Biscaye, P.E., 1964, Distinction between kaolinite and chlorite in recent sediments by X-ray diffraction. American Mineralogist, v. 46, pp.1281-1289. 0 100 Percent Pyrite % Laboratory categorization of pyrite mineral composition, in weight percent. Hosterman, J.W. and Dulong, F.T., 1989, A computer program for semiquantitative mineral analysis by X-ray powder diffraction: in CMS Workshop Lectures, Vol. 1, Quantitative Mineral Analysis of Clays, D.R. Pevear and F.A. Mumpton, eds. The Clay Minerals Society, Evergreen, Colorado, p. 37-50. 0 100 Percent Other Minerals % Laboratory categorization of other minerals composition not accounted for in the previous categories, in weight percent. Examples of other minerals that may be detected but not identified or quantified are apatite, bassanite, anhydrite, gypsum, barite, hematite, and anatase. Hosterman, J.W. and Dulong, F.T., 1989, A computer program for semiquantitative mineral analysis by X-ray powder diffraction: in CMS Workshop Lectures, Vol. 1, Quantitative Mineral Analysis of Clays, D.R. Pevear and F.A. Mumpton, eds. The Clay Minerals Society, Evergreen, Colorado, p. 37-50. 0 100 Percent Total Clay % The sum of the weight percent of Illite/Smectite, illite, kaolinite, and chlorite in this sample. Hosterman, J.W. and Dulong, F.T., 1989, A computer program for semiquantitative mineral analysis by X-ray powder diffraction: in CMS Workshop Lectures, Vol. 1, Quantitative Mineral Analysis of Clays, D.R. Pevear and F.A. Mumpton, eds. The Clay Minerals Society, Evergreen, Colorado, p. 37-50. 0 100 Percent LOI % Loss on ignition content obtained from the low-temperature ashing (low temp oxygen plasma at <100°C; LTA) method, in weight percent. Pontolillo, Jim and Stanton, R.W., 1994, Coal petrographic laboratory procedures and safety manual II, U.S. Geological Survey Open-file Report 94-631, 69 p. 0 100 Percent Mineralogist Comments Comments recorded by laboratory researcher regarding the samples analyzed for semi-quantitative mineralogy. Defined by metadata compiler. Comments recorded by laboratory researcher regarding the samples analyzed for semi-quantitative mineralogy. These may provide information about the quantity and/or quality of the sample analyzed. Reference or Source of Geochemical Data Source of geochemical data, including abbreviation/short name of reference from which previously published data were pulled, or results from this USGS-State Cooperative Study. Defined by metadata compiler. Harris, A.G., and others, 1994 Harris, A.G., Stamm, N.R., Repetski, J.E., Stamm, R.G., and Parker, R.A., 1994, Conodont alteration index (CAI) and conodont-based age determinations for the Winchester 30'x60' quadrangle and adjacent area Virginia, West Virginia, and Maryland: USGS MF Studies Map 2239. Defined by metadata compiler. Repetski, J. E., and others, 2008 Repetski, J.E., Ryder, R.T., Weary, D.J., Harris, A.G., Trippi, M.H., 2008, Thermal Maturity Patterns (CAI and %Ro) in Upper Ordovician and Devonian Rocks of the Appalachian Basin: A Major Revision of USGS Map I-917-E Using New Subsurface Collections: U.S. Geological Survey Scientific Investigations Map 3006. Defined by metadata compiler. Riley, R.A., and others, 2012 Riley, R.A., Erinpreiss, M.S., and Wells, J.G., 2012, data compilation and source rock mapping of the Upper Devonian shale interval in Ohio: OHDNR Div. of Geological Survey contract report to USGS. Defined by metadata compiler. USGS-State Cooperative Study Previously unpublished data derived from USGS-State Cooperative Study performed from 2007-2012. Defined by metadata compiler. GS ScienceBase U.S. Geological Survey mailing and physical

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