{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Amanda K Souders", "hasEmail": "mailto:asouders@usgs.gov"}, "description": "This U.S. Geological Survey (USGS) data release provides U-Pb zircon data and geochronology for Proterozoic rocks in the Needle Mountains of southwestern Colorado and for Proterozoic rocks sampled from drill cores from Wyoming, Montana, and Nebraska. Samples from the Needle Mountains were collected in order to constrain the polyphase tectonic evolution of the area. Drill core samples are part of a larger characterization of the age and geochemical character of basement terranes in the United States.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9IXUBGV", "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.63c184d7d34e92aad3d06682.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_63c184d7d34e92aad3d06682", "keyword": ["Colorado", "Geologic Framework of the Intermountain West", "Geology Geophysics and Geochemistry Science Center", "Geosciences and Environmental Change Science Center", "LA-ICP-MS", "Montana", "NCGMP", "Nebraska", "Precambrian basement terranes", "U-Pb geochronology", "US Geological Survey", "USGS:63c184d7d34e92aad3d06682", "Wyoming", "geoscientificInformation"], "modified": "2023-05-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-108.3229, 37.459, -99.3724, 45.8749", "theme": ["geospatial"], "title": "Zircon U-Pb data for Proterozoic rocks in southwestern Colorado and rocks from drill core from Wyoming, Montana, and Nebraska"}