{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "PCMSC Science Data Coordinator", "hasEmail": "mailto:pcmsc_data@usgs.gov"}, "description": "This data release contains x-ray diffraction data of rock samples collected from the Escanaba Trough hydrothermal vent field, Gorda Ridge, in the northeast Pacific Ocean. These data were collected in 2022 on expedition TN403 (USGS Field Activity 2022-621-FA). Samples were taken to the USGS Pacific Coastal Marine Science Center for subsampling and x-ray diffraction analyses.  Powder x-ray diffraction data for the rind layer of the rocks are provided in this dataset. Location information (latitude, longitude, depth) for each sample are provided in each Attribute Definition of this metadata file.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P1DJPX9G", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.695beccad4be02126e7fb58d.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_695beccad4be02126e7fb58d", "keyword": ["Assessments", "CMHRP", "Coastal and Marine Hazards and Resources Program", "Escanaba Trough", "Global Ocean Mineral Resources", "Gorda Ridge", "Material Resources", "Mineral Resources", "Nonliving Resources", "PCMSC", "Pacific Coastal and Marine Science Center", "Pacific Ocean", "Physical/Chemical Features", "U.S. Geological Survey", "USGS", "USGS:695beccad4be02126e7fb58d", "X-ray diffraction", "chemical analysis", "geoscientificInformation", "marine geology", "metallic mineral resources", "mineral resources", "mineralogical analysis", "oceans", "sediment geochemistry"], "modified": "2026-04-03T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-127.5392, 40.6962, -127.4506, 41.0816", "theme": ["geospatial"], "title": "X-ray diffraction data for oxidized subsamples from the Escanaba Trough (Gorda Ridge)"}