Ryan T. Deasy J. Wright Horton, Jr. Shannon N. Glock Mary E. Lupo 20241105 spreadsheet Deasy, R.T., Horton, J.W., Jr., Glock, S.N., and Lupo, M. Mineral abundances of selected pre-Middle Jurassic basement rocks beneath the Atlantic and Gulf Coastal Plains in Florida and Alabama from whole-rock powder X-ray diffraction analysis and the Rietveld method: U.S. Geological Survey Data Release, https://___ https://doi.org/10.5066/P133DRW5 This data release reports the mineral abundances in samples of pre-Middle Jurassic basement rocks from twenty-nine (29) boreholes in Florida and southern Alabama. Mineral abundances are quantified from whole-rock powder X-ray diffraction (XRD) data and the Rietveld method and are reported in weight percent or, where present near the detection limit (~1 wt.% depending on mineral), as trace (t). The abundances of expandable clays are given in weight percent in corundum-spiked samples and qualitatively in EG-solvated samples as absent (0), trace (t), present (p), or abundant (a). Accessory minerals identified by optical and/or electron microscopy but not detected in XRD patterns are named but not quantified. Major and trace element geochemical analyses of many of the same samples are available in a companion data release (Deasy and others, 2024a). Raw diffraction intensity data are included in original proprietary formats as well as in converted .csv files. More information about samples and XRD methods and results are included in the accompanying Data Report entitled Petrography and mineralogy of selected pre-Middle Jurassic basement rocks beneath the Atlantic and Gulf Coastal Plains in Florida (Deasy and others, 2024b). Photographs and photomicrographs of all samples are presented in another companion data release (Deasy and others, 2024c). These data were collected to support the characterization, discrimination, and correlation of map units in the Geologic map of pre-Middle Jurassic basement rocks beneath the Atlantic and Gulf Coastal Plains in Florida (Deasy and others, 2024d). This data release contains the following files: DATA_FL-AL_basement_rock_mineral_abundances.csv contains the estimated mineral abundances in eighty-one (81) samples from twenty-nine (29) wells, well identification information and sample depths, trace minerals identified by optical or electron microscopy, results of ethylene glycol (EG) solvation treatments as applicable, angular range of analysis in degrees 2-theta, sample mount types used, modeled mineral compositions as applicable, and optional additional comments. DATA_DICTIONARY_FL-AL_basement_rock_mineral_abundances.csv contains definitions of attributes in the data file. OTHER_ABBREVIATIONS_FL-AL_basement_rock_mineral_abundances.csv lists and defines abbreviations used in this data release. Raw XRD are grouped in a folder (rawXRDdata). Original XRD data, in .xrdml and .raw formats are in three (3) subfolders (rawXRDdata_1, rawXRDdata_2, and rawXRDdata_3) grouped by “data_source” (that is, laboratory in and instrument on which analyses were performed). Diffraction intensity data in .csv format are also included in compiled spreadsheets grouped by “data_source” (rawXRDdata_1.csv, rawXRDdata_2.csv, and rawXRDdata_3.csv). Conversion from original to .csv format was performed with PowDLL Converter v2.7. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Basement terranes and basins buried beneath sediments of the Atlantic and Gulf Coastal Plains are among the last frontiers of regional geology in the U.S. Powdered samples of basement rocks from deep wells in Florida and Alabama were analyzed by X-ray diffraction (XRD). The raw data and semi-quantitative modeled modal mineralogy are presented to support subsurface geologic mapping, geologic interpretation of geophysical data, topical studies, and applications ranging from mineral, energy, and water resources to earthquake hazards. 1903 2024 ground condition Complete None planned -88.0900 -80.8986 31.9598 27.7931 ISO 19115 Topic Category geoscientificInformation USGS Thesaurus mineral resources mineralogy x-ray diffraction bedrock geologic units USGS Metadata Identifier USGS:6723af10d34e4f57573e8c62 Common geographic areas Florida Alabama None. Please see 'Distribution Info' for details. None. Users are advised to read the dataset's metadata thoroughly to understand appropriate use and data limitations. Ryan T. Deasy U.S. Geological Survey Research Geologist mailing and physical

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Reston VA 20192 USA 812-325-2464 rdeasy@usgs.gov Much appreciation goes to David Bish and Maren Pink of the Indiana University Molecular Structure Center for help with X-ray diffraction data collection and interpretation. We thank Guy Means, David Paul, and Edward Chelette of the Florida Geological Survey for access to subsurface rock samples and information. Thanks also to Jon Arthur of the American Geosciences Institute for instructive conversations regarding sampling and analytical strategy. This data release benefitted from a helpful reviews by Rebecca Stokes and Nick Powell. Ryan T. Deasy J. Wright Horton, Jr. Shannon N. Glock Mary E. Lupo 2023 USGS Data Release Deasy, R.T., Horton, J.W., Jr., Glock, S.N., and Lupo, M.E ., 2024a, Geochemical data from selected pre-Middle Jurassic basement rocks beneath the Atlantic and Gulf Coastal Plains in Florida and Alabama: U.S. Geological Survey data release, https://doi:10.5066/P13NBKKC J. Wright Horton, Jr. Shannon N. Glock David L. Daniels Ryan T. Deasy 2023 USGS Data Release Horton, J.W., Jr., Glock, S.N., Daniels, D.L., and Deasy, R.T., 2023, Borehole data for pre-Middle Jurassic basement rocks beneath the Atlantic and Gulf Coastal Plains, Florida and Alabama: U.S. Geological Survey data release, https://doi.org/10.5066/P9VBO427 https://www.usgs.gov/data/borehole-data-pre-middle-jurassic-basement-rocks-beneath-atlantic-and-gulf-coastal-plains Ryan T. Deasy J. Wright Horton, Jr. Mary E. Lupo Shannon N. Glock E. Allen Crider David L. Daniels 2024 USGS SIM Deasy, R.T., Horton, J.W., Jr., Glock, S.N., Lupo, M.E., Crider, E.A., Daniels, D.L., 2024d, Geologic map of pre-Middle Jurassic basement rocks beneath the Coastal Plain in Florida: U.S. Geological Survey Scientific Investigations Map XXXX, XX p., XX sheets, https://doi.org/10.3133/simXXXX. Ryan T. Deasy Mary E. Lupo Ryan J. McAleer J. Wright Horton, Jr. 2024 USGS Data Report Deasy, R.T., Lupo, M.E., McAleer, R.J., and Horton, J.W., Jr., in press, Petrography and mineralogy of selected pre-Middle Jurassic basement rocks beneath the Atlantic and Gulf Coastal Plains in Florida: U.S. Geological Survey Data Report, https://... Ryan T. Deasy Mary E. Lupo Ryan J. McAleer J. Wright Horton, Jr. 2024 USGS Data Release Deasy, R.T., Lupo, M.E., McAleer, R.J., and Horton, J.W., Jr., 2024c, Photographs and photomicrographs of selected pre-Middle Jurassic basement rocks beneath the Atlantic and Gulf Coastal Plains in Florida: U.S. Geological Survey data release, https://doi:10.5066/P13XYCUC No formal tests were conducted to assess accuracy. 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. Horizontal positional accuracy of borehole locations is based on the original data source. Where locations are not provided in published accounts, location was estimated based on well logs or drilling records. No formal positional accuracy tests were conducted. Vertical positional accuracy of elevation and depth data is based on original data sources. Where surface elevations are not provided in published accounts, surface elevation was estimated based on the borehole location. No formal positional accuracy tests were conducted. A review of state geological survey records was conducted to compile a database of boreholes that have penetrated basement rocks in Alabama and Florida and identify intervals of interest for sampling. A assessment of the availability of recovered material among the state core repositories followed. Available core and cuttings from intervals of interest were visually evaulated and selected for analysis. Where core was available, chips were broken or sawed off for analysis. Where only cuttings were available, target rock samples were isolated from contaminants among the cuttings by hand-picking with tweezers under a binocular microscope into representative aliquots. Where possible, multiple aliquots were isolated from individual cuttings intervals and analyzed separately. 2020 Samples were ground by hand in an agate or corundum mortar and pestle to a fine powder. Acetone was used continuously to lubricate the sample and grinding equipment. Air-dried powdered sample was mounted and analyzed in a Bruker D8, Panalytical Empyrean, or Panalytical X'Pert X-ray diffractometer. Some samples were treated by solvation in ethylene glycol and analyzed under ethylene glycol solvated conditions. Methodological specifics for each sample are provided in the table of mineral abundances. 2021 Rietveld refinement modeling was performed to obtain semiquantitative estimates of mineral abundances in each sample. Data collected on the Bruker instrument were modeled in TOPAS5. Data collected on the Panalytical instruments were modeled using HighScore Plus version 4.7. Initial mineral identification was from hand sample and/or microscopic analysis; other minerals were identified by search and match functions on unidentified peaks. Crystal structure files were selected from the International Centre for Diffraction Data (ICDD) 2021 database. Modeled parameters for each refinement include: scale factors, background, specimen displacement, and peak broadening due to crystallite strain and size. Other parameters including preferred orientation, unit cell parameters, and solid solution modeling were applied to mineral models as appropriate to best fit the data. Solid solution modeling parameters are included in DATA_FL-AL_sub-Coastal_Plain_basement_rock_mineral_abundances.csv. Modeled mineral compositions refer to Rietveld refinement parameters which are not measurements of mineral compositions and are typically estimable only in minerals present at ~5-10 weight percent or more. 2021 DATA_FL-AL_sub-Coastal_Plain_basement_rock_mineral_abundances.csv Comma Separated Value (CSV) file containing mineral abundances and XRD methods for sub-Coastal Plain basement rocks in Florida and Alabama. Producer Defined ST State in which borehole is located Producer Defined AL Alabama Producer defined FL Florida Producer defined Well_ID Borehole designation Producer Defined Boreholes located in Alabama are represented by "GSA" followed by a unique numerical identifier. Boreholes located in Florida are represented by "W" followed by a unique numerical identifier. For boreholes where an identifier designated by the state was not available, an alternate unique identifier is used. More information for each borehole is available in the cross-referenced data releases and may be related through this field. Lat_NAD27 North latitude (North American Datum of 1927) Producer Defined. Various sources of unspecified resolution commonly report to nearest second (nominal resolution 0.0001 degree) 27.79306 31.9598 decimal degrees 0.0001 Lon_NAD27 West longitude (North American Datum of 1927) Producer Defined. Various sources of unspecified resolution commonly report to nearest second (nominal resolution 0.0001 degree) -88.09 -80.89861 decimal degrees 0.0001 Surf_Elev elevation of top of basement rock in feet relative to mean sea level Producer Defined 31 395 feet 1 top_depth Depth of top of sampled interval below land surface Producer Defined 3879 14848 feet 1 bottom_depth Depth of bottom of sampled interval below land surface Producer Defined 520 14848 feet 1 sample_name Sample name Producer Defined Sample names typically consist of well identifier (typically identical to "Well_ID") followed by an underscore and depth interval (typically formatted as "top_depth"-"bottom_depth"). Other unique alphanumeric identifiers may follow. Where multiple sample aliquots were separated from a drilling interval, those are distinguished by alphabetical designations at the end of "sample_name." mass_sample Mass of powdered rock sample analyzed Producer Defined << empty cell >> No Data Producer defined 0.074 17.4 grams sample_type type of sample analyzed Producer Defined CUT drill cuttings Producer defined CORE drill core Producer defined CHIP core chips Producer defined rock_type brief rock description Producer Defined brief rock description quartz abundance of quartz Producer Defined << empty cell >> No Data Producer defined 1.0 59.9 wt.% plagioclase abundance of plagioclase Producer Defined << empty cell >> No Data Producer defined 4.5 59.9 wt.% microcline abundance of microcline Producer Defined << empty cell >> No Data Producer defined 0.7 46.7 wt.% orthoclase abundance of orthoclase Producer Defined << empty cell >> No Data Producer defined 2.0 14.4 wt.% sanidine abundance of sanidine Producer Defined << empty cell >> No Data Producer defined 4.3 30.9 wt.% augite abundance of augite Producer Defined << empty cell >> No Data Producer defined 1.1 30.4 wt.% olivine abundance of olivine Producer Defined << empty cell >> No Data Producer defined 3.1 8.9 wt.% almandine abundance of almandine Producer Defined << empty cell >> No Data Producer defined 3.7 4.3 wt.% biotite abundance of biotite Producer Defined << empty cell >> No Data Producer defined 0.1 20.1 wt.% chlorite abundance of chlorite Producer Defined << empty cell >> No Data Producer defined 0.1 28.8 wt.% muscovite_(2M1) abundance of muscovite. 2M1, two-layer monoclinic structure model used Producer Defined << empty cell >> No Data Producer defined 1.4 56.9 wt.% illite_(1M) abundance of illite. 1M, one-layer monoclinic structure used Producer Defined << empty cell >> No Data Producer defined 0.3 33.6 wt.% smectite abundance of smectite Producer Defined << empty cell >> No Data Producer defined 0 smectite not present Producer defined t trace amounts of smectite present Producer defined chlorite/smectite abundance of chlorite/smectite Producer Defined << empty cell >> No Data Producer defined a chlorite/smectite is abundant Producer defined t chlorite/smectite present in trace amounts Producer defined 0 chlorite/smectite not present Producer defined illite/smectite abundance of illite smectite Producer Defined << empty cell >> No Data Producer defined 0 0.5 wt.% kaolinite abundance of kaolinite Producer Defined << empty cell >> No Data Producer defined 0.4 6.9 wt.% talc abundance of talc Producer Defined << empty cell >> No Data Producer defined 0.9 20.1 wt.% prehnite abundance of prehnite Producer Defined << empty cell >> No Data Producer defined 0.9 14.0 wt.% epidote/clinozoisite abundance of epidote/clinozoisite Producer Defined << empty cell >> No Data Producer defined 0.1 19.9 wt.% actinolite abundance of actinolite Producer Defined << empty cell >> No Data Producer defined 0.1 40 wt.% serpentine abundance of serpentine Producer Defined << empty cell >> No Data Producer defined 1.8 3.2 wt.% titanite abundance of titanite Producer Defined << empty cell >> No Data Producer defined 0.5 7.4 wt.% ilmenite abundance of ilmenite Producer Defined << empty cell >> No Data Producer defined 0.4 0.8 wt.% magnetite abundance of magnetite Producer Defined << empty cell >> No Data Producer defined 0.1 3.8 wt.% calcite abundance of calcite Producer Defined << empty cell >> No Data Producer defined 0.4 18.1 wt.% dolomite abundance of dolomite Producer Defined << empty cell >> No Data Producer defined 1.1 94.7 wt.% gypsum abundance of gypsum Producer Defined << empty cell >> No Data Producer defined 2.7 2.7 wt.% anhydrite abundance of anhydrite Producer Defined << empty cell >> No Data Producer defined 8.3 32.6 wt.% laumontite abundance of laumontite Producer Defined << empty cell >> No Data Producer defined 0.5 2.0 wt.% hematite abundance of hematite Producer Defined << empty cell >> No Data Producer defined 0.1 3.2 wt.% goethite abundance of goethite Producer Defined << empty cell >> No Data Producer defined 0.7 5.1 wt.% other_mins minerals identified by optical and/or electron microscopy but not present in XRD patterns Producer Defined << empty cell >> No Data Producer defined minerals identified by optical and/or electron microscopy but not present in XRD patterns An_plag anorthite (CaAl2Si2O8) content of plagioclase used in Rietveld modeling Producer Defined << empty cell >> No Data Producer defined 0 74 % 1 Or_Kfs orthoclase (KAlSi3O8) content of K-feldspar used in Rietveld modeling Producer Defined << empty cell >> No Data Producer defined 0 100 % 1 Aug_Mg magnesium number [=100*(Mg/(Mg+Fe))] of augite used in Rietveld modeling Producer Defined << empty cell >> No Data Producer defined 62 100 % 1 Chl_Mg magnesium number [=100*(Mg/(Mg+Fe))] of chlorite used in Rietveld modeling Producer Defined << empty cell >> No Data Producer defined 59 90 % 1 Prh_Fe_apfu atoms per formula unit Fe3+ in prehnite used in Rietveld modeling Producer Defined << empty cell >> No Data Producer defined 0.0 0.19 apfu 0.1 Ep_Fe_apfu atoms per formula unit Fe3+ in epidote used in Rietveld modeling Producer Defined << empty cell >> No Data Producer defined 0.0 1.29 apfu 0.1 data_source laboratory; instrument; and software used for analysis Producer Defined 1 U.S.Geological Survey Reston VA; Panalytical X’Pert; HighScore Plus Producer defined 2 Indiana University Molecular Science Center Bloomington IN; Bruker D8; TOPAS5 Producer defined 3 U.S.Geological Survey Reston VA; Panalytical Empyrean; HighScore Plus Producer defined geochemistry indicates whether geochemistry on the same sample is available Producer Defined N geochemistry is not available Producer defined Y geochemistry is available; see cross-referenced data release Producer defined EG_treatment Indicates whether sample was treated by ethylene glycol solvation in addition to air-dried analyses Producer Defined N Sample was not treated by ethylene glycol solvation in addition to air-dried analysis Producer defined Y Sample was treated by ethylene glycol solvation in addition to air-dried analysis Producer defined EG_result results of ethylene glycol solvation Producer Defined << empty cell >> No Data Producer defined Brief comment on the results of ethylene glycol solvation 2theta_min minimum angle of analysis Producer Defined 2 3 degrees 2-theta 0.02 2theta_max maximum angle of analysis Producer Defined 70 100 degrees 2-theta 0.02 sample_mount type of sample mount used Producer Defined BPM back-pack mount Producer defined Si silicon wafer Producer defined BPM; Qz back-pack mount and quartz plate Producer defined LFPM large back-pack mount Producer defined Qz quartz plate Producer defined Si; Qz silicon wafer and quartz plate Producer defined LFPM; Qz large back-pack mount and quartz plate Producer defined SFPM; Qz small back-pack mount and quartz plate Producer defined SFPM small back-pack mount Producer defined comment optional extra information Producer Defined << empty cell >> No Data Producer defined optional extra information rawXRDdata_1.csv Raw XRD data for which "data_source"=1. The first column is degrees 2-theta and the rest are the intensity data for each sample. Column headings are “sample_name” followed by “sample_mount” and/or one of the following, as applicable: AD=air-dried; EG=solvated in ethylene glycol atmosphere; corspk=spiked with corundum powder. Producer defined rawXRDdata_2.csv Raw XRD data for which "data_source"=2. The first column is degrees 2-theta and the rest are the intensity data for each sample. Column headings are “sample_name” followed by “sample_mount” and/or one of the following, as applicable: AD=air-dried; EG=solvated in ethylene glycol atmosphere; corspk=spiked with corundum powder. Producer defined rawXRDdata_3.csv Raw XRD data for which "data_source"=3. The first column is degrees 2-theta and the rest are the intensity data for each sample. Column headings are “sample_name” followed by “sample_mount” and/or one of the following, as applicable: AD=air-dried; EG=solvated in ethylene glycol atmosphere; corspk=spiked with corundum powder. Producer defined DATA_DICTIONARY_FL-AL_sub-Coastal_Plain_basement_rock_mineral_abundances.csv Comma Separated Value (CSV) file containing data dictionary for DATA_FL-AL_sub-Coastal_Plain_basement_rock_mineral_abundances.csv. Producer defined Table_name name of table referenced Producer defined DATA_FL-AL_sub-Coastal_Plain_basement_rock_mineral_abundances data table Producer defined Attribute_name column heading in referenced table Producer defined column heading in referenced table Attribute_description description of attribute Producer defined description of attribute Min minimum value Producer defined << empty cell >> No Data Producer defined minimum value Max maximum value Producer defined << empty cell >> No Data Producer defined maximum value Detection_Limit limit of detection Producer defined << empty cell >> No Data Producer defined limit of detection Unit unit of measurement Producer defined << empty cell >> No Data Producer defined NA not applicable Producer defined decimal degrees decimal degrees Producer defined feet feet Producer defined g grams Producer defined wt.% weight percent Producer defined % percent Producer defined apfu atoms per formula unit Producer defined degrees 2-theta degrees 2-theta Producer defined OTHER_ABBREVIATIONS_FL-AL_sub-Coastal_Plain_basement_rock_mineral_abundances.csv Comma Separated Value (CSV) file containing a list of abbreviations used in this data release and their definitions. Producer defined Abbreviation abbreviation Producer defined abbreviations used in this data release Abbreviation_definition definition of abbreviation Producer defined definitions of abbreviations used in this data release This data release contains the following files: DATA_FL-AL_sub-Coastal_Plain_basement_rock_mineral_abundances.csv contains the estimated mineral abundances in eighty-one (81) samples from twenty-nine (29) wells, well identification information and sample depths, trace minerals identified by optical or electron microscopy, results of ethylene glycol (EG) solvation treatments as applicable, angular range of analysis in degrees 2-theta, sample mount types used, modeled mineral compositions as applicable, and optional additional comments. DATA_DICTIONARY_FL-AL_sub-Coastal_Plain_basement_rock_mineral_abundances.csv contains definitions of attributes in the data file. OTHER_ABBREVIATIONS_FL-AL_sub-Coastal_Plain_basement_rock_mineral_abundances.csv lists and defines abbreviations used in this data release. Raw XRD are grouped in a folder (rawXRDdata). Original XRD data, in .xrdml and .raw formats are in three (3) subfolders (rawXRDdata_1, rawXRDdata_2, and rawXRDdata_3) grouped by “data_source” (i.e., laboratory in and instrument on which analyses were performed). Diffraction intensity data in .csv format are also included in compiled spreadsheets grouped by “data_source” (rawXRDdata_1.csv, rawXRDdata_2.csv, and rawXRDdata_3.csv). Conversion from original to .csv format was performed with PowDLL Converter v2.7. Deasy, R.T., Horton, J.W., Jr., Glock, S.N., and Lupo, M. Mineral abundances of selected pre-Middle Jurassic basement rocks beneath the Coastal Plain in Florida and Alabama from whole-rock powder X-ray diffraction and the Rietveld method: U.S. Geological Survey Data Release, https://___ GS ScienceBase U.S. Geological Survey mailing address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 United States 1-888-275-8747 sciencebase@usgs.gov 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. Digital Data https://doi.org/10.5066/P133DRW5 None 20260129 Ryan T. Deasy U.S. Geological Survey Research Geologist mailing and physical

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Reston Virginia 20192 USA 812-325-2464 rdeasy@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998