Katlin Bowman Adamczyk Amy Gartman Jaycee Favela Jacob Tidwell 20250317 comma-delimited text data release DOI:10.5066/P13B46QX Pacific Coastal and Marine Science Center, Santa Cruz, California U.S. Geological Survey https://doi.org/10.5066/P13B46QX https://www.sciencebase.gov/catalog/item/679282a3d34e88f5864c49e9 Katlin Bowman Adamczyk Amy Gartman Jaycee Favela Jacob Tidwell 2025 data release DOI:10.5066/P13B46QX Pacific Coastal and Marine Science Center, Santa Cruz, CA U.S. Geological Survey Suggested Citation: Adamczyk, K., Gartman, A., Favela, J., and Tidwell, J., 2025, Computed tomography (CT) scans, photographs, geochemistry, grain-size and total carbon analysis, X-ray fluorescence (XRF) scans, X-ray diffraction (XRD), magnetic susceptibility, and gamma-ray bulk density data of gravity cores and push cores from the Escanaba Trough (Gorda Ridge): U.S. Geological Survey data release, https://doi.org/10.5066/P13B46QX. https://doi.org/10.5066/P13B46QX https://www.sciencebase.gov/catalog/item/67004442d34e80be174aea95 This portion of the data release contains latitude, longitude, and water depth values for push cores and gravity cores collected from the Escanaba Trough vent field, Gorda Ridge, in the northeast Pacific Ocean. These data were collected in 2022 (USGS Field Activity 2022-621-FA). Data were obtained to characterize downcore geochemical properties of sediments. These data are intended for science researchers, students, policy makers, and the general public. Additional information about the field activity or activities from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2022-621-FA Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 20220524 20220613 ground condition at time data were collected Complete None planned -127.5362 -127.4076 41.1632 40.6957 ISO 19115 Topic Category oceans geoscientificInformation location Data Categories for Marine Planning Nonliving Resources Material Resources Mineral Resources USGS Thesaurus push coring gravity coring metallic mineral resources earth sciences marine geology Marine Realms Information Bank (MRIB) keywords sediment geochemistry mineral resources None U.S. Geological Survey USGS Coastal and Marine Hazards and Resources Program CMHRP Pacific Coastal and Marine Science Center PCMSC Global Ocean Mineral Resources USGS Metadata Identifier USGS:679282a3d34e88f5864c49e9 Geographic Names Information System (GNIS) Pacific Ocean NGA GEOnet Names Server (GNS) Escanaba Trough Gorda Ridge No access constraints USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator of the dataset and in products derived from these data. U.S. Geological Survey, Pacific Coastal and Marine Science Center PCMSC Science Data Coordinator mailing and physical

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Santa Cruz CA 95060 831-427-4747 pcmsc_data@usgs.gov Exploring the Seafloor and Oceanic Footprints is an interagency effort involving the National Oceanic and Atmospheric Administration, the U.S. Geological Survey, and the Bureau of Ocean Energy Management. Funding is acknowledged from NOAA Ocean Exploration via its Ocean Exploration Fiscal Year 2019 Funding Opportunity and through the National Oceanographic Partnership Program (NOPP), from the USGS Coastal and Marine Hazards and Resources Enhanced Funding Opportunities, and from the Bureau of Ocean Energy Management through Interagency Agreement M19PG00021 with the United States Geological Survey. Windows 11 Enterprise, Microsoft Excel 365 for enterprise No formal attribute accuracy tests were conducted. No formal logical consistency tests were conducted. Dataset 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. The locations of push core samples were determined using ROV Jason’s ultra-short baseline (USBL) navigation. Accuracy for this depth is approximately 6-26 m. The locations of gravity core samples were determined using the R/V Thomas G. Thompson’s GPS navigation, which is accurate to less than 5 m. A formal accuracy assessment of the horizontal positional information in the dataset has not been conducted. For push core samples, the vertical accuracy was determined with ROV Jason’s altimeter, which is accurate to less than 1 m. For gravity core samples, the vertical accuracy was determined with the R/V Thomas G. Thompson’s multibeam bathymetry system. No formal positional accuracy tests were conducted. Push core and gravity core samples were collected on the R/V Thomas G. Thompson between May 24, 2022, and June 13, 2022, during the TN403 Escanaba Trough expedition, which was led and staffed by USGS employees. Push cores were pushed into sediment at 37 locations by ROV Jason’s manipulator arm in water depths between 3201 and 3301 meters. Gravity cores were collected using a gravity corer at 7 locations in water depths between 3209 and 3304 meters. Gravity cores greater than 60 cm in length were cut into sections onboard the ship and labeled ‘X’ (0-60 cm), ‘Y’ (60-120 cm), and ‘Z’ (>120 cm). All cores were stored upright and refrigerated until return to shore. 20220613 Location data (latitude and longitude) and water depth were compiled into a single comma-separated value (.csv) file. 20220808 Point Point 44 0.0001 0.0001 Decimal degrees D_WGS_1984 WGS_1984 6378137.0 298.257222101 TN403_CoreLocations.csv Comma-separated value (CSV) file containing the latitude, longitude, and water depth for each sediment core sample. The first row is a header row. Producer defined Core_ID The sample ID for each push core and gravity core sample producer defined Sample IDs for push cores are formatted as Dive#-PushCore# (for example, J2-1418-PC03 is ROV Jason dive number J2-1418, push core number 03). Sample IDs for gravity cores are formatted as GC# (for example, GC03 is gravity core 03). Latitude Latitude at which sample was collected producer defined 40.6957 41.1632 decimal degrees .0001 Longitude Longitude at which sample was collected producer defined -127.5362 -127.4076 decimal degrees .0001 Water_Depth Water depth at which the sample was collected producer defined 3201 3304 meters 1 The first line of the csv file is a header line. U.S. Geological Survey U.S. Geological Survey - ScienceBase mailing and physical

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Denver CO 80225 1-888-275-8747 sciencebase@usgs.gov These data are available in .csv format contained in a single file. 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 on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. comma-delimited text Microsoft Excel 365 for enterprise File contains table in .csv format No compression applied .0018 https://www.sciencebase.gov/catalog/file/get/679282a3d34e88f5864c49e9 https://www.sciencebase.gov/catalog/item/679282a3d34e88f5864c49e9 https://doi.org/10.5066/P13B46QX Data and metadata can be downloaded using the Network_Resource_Name links. The first link is a direct link to download a zipped file of data and metadata. The second link points to a landing page with metadata and data. The third link points to the landing page for the entire data release. None. These data can be viewed with Microsoft Excel or any text reader. 20250317 U.S. Geological Survey, Pacific Coastal and Marine Science Center PCMSC Science Data Coordinator mailing and physical

2885 Mission Street

Santa Cruz CA 95060 831-427-4747 pcmsc_data@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998