Justin E Birdwell 20250514 tabular digital data https://doi.org/10.5066/P13VSHBX Blood, D.R. Birdwell, J.E. McCallum, S.D. Douds, A.S.B. 2025 publication Submitted 2024 Geochemical and mineralogical characterization data was collected for samples of the Upper Devonian Hanover and Dunkirk Formations from outcrops in the Appalachian Basin (Chautauqua County, New York). The data was integrated with outcrop descriptions in a publication (see larger work) that describes the enrichment of particular trace metals and minerals in different shale types formed under different depositional conditions. Samples were collected for geochemical and mineralogical characterization to evaluate the degree of enrichment of critical metals (lithium, manganese, cobalt, copper, nickel, and rare earth elements) in black shales in Devonian units in the eastern United States. By identifying shale types (gray, pyritic, black) that are enriched relative to the average continental crust in particular trace metals, it may be possible to identify similar deposits that are of sufficient grade to permit economically viable development of shale-related metal resources. Data release contains: DevonianShale_data.csv DS_Column_description.csv 2022 2023 ground condition Complete None planned -79.352900 -79.269300 42.503100 42.493700 ISO 19115 Topic Category geoscientificInformation USGS Energy Resources Dunkirk Formation Hanover Formation critical minerals trace elements Upper Devonian USGS Metadata Identifier USGS:6824bf67d4be0236b06af614 USGS Thesaurus Energy Resources None Chautauqua County New York Appalachian Basin 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. Justin E Birdwell USGS - ROCKY MOUNTAIN REGION Research Engineer mailing and physical

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Lakewood CO 80225 303-236-1534 jbirdwell@usgs.gov Mark F Dreier Augusta Warden 2021 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/p9hqsbgh Thomas A Oliver Augusta Warden 2020 dataset https://www.sciencebase.gov U.S. Geological Survey https://doi.org/10.5066/p9x85huf USGS Mineral Resources Program 2019 publication accessed April 7, 2023. https://www.usgs.gov/media/files/60-elements-icp-oes-ms-na2o-fusion-method Quality control information on USGS methods are available from the Petroleum Geochemistry Research Laboratory (PGRL). Quality control procedures for analyses performed by outside laboratories included the use of geochemical reference materials with established acceptance criteria for elemental concentrations and mineralogy as well as replicate analyses. All values fell within expected ranges For some samples, total organic carbon content, programmed pyrolysis parameters, and trace elements, concentrations were below the reporting limit (BRL) for the method used and are indicated as such in the data table as “BRL”. Some Tmax values are not reported (NR) because the S2 value was too small (<0.2 mg/g) to reliably report this parameter. In the mineralogy data, some phases were not detected in all samples and are reported as not detected (ND). Collaborator (D.R. Blood) visited outcrop sites in Chautauqua County, New York to obtain samples from the Beaver Meadow Member of the Hanover Shale and the basal portion of the Dunkirk Shale. Care was taken to collect fresh, unweathered rock samples. Sample preparation involved powdering rock samples according to procedures established by the USGS Petroleum Geochemistry Research Laboratory (PGRL). All samples were analyzed for total carbon, total organic carbon, and programmed temperature pyrolysis by PGRL (Oliver and Warden, 2020; Dreier and Warden, 2021). PGRL also facilitated analyses by outside commercial laboratories, including AGAT Laboratories, who measured major and trace element concentrations on all samples using a USGS method (U.S. Mineral Resources Program, 2019). The samples were also analyzed by Activation Laboratories for X-ray diffraction mineralogy, with data generated by that laboratory interpreted by USGS personnel. 2024 The data release includes one .csv file (DevonianShale_data.csv) containing the datasets and one .csv file with the data dictionary (DS_Column_description.csv). Mineral abundances less than 5 wt. % are informational only. NR = not reported BRL = below reporting limit ND = not detected Please see data dictionary for complete information. U.S. Geological Survey - ScienceBase mailing address

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Denver CO 80225 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/P13VSHBX None 20250626 Christa D Chavez USGS - ROCKY MOUNTAIN REGION Information Technology Specialist mailing and physical

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Lakewood CO 80225 303-236-1644 cchavez@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998