{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Shannon A Mahan", "hasEmail": "mailto:smahan@usgs.gov"}, "description": "The following report summarizes the dating results from sedimentary deposits sampled by the USGS Geologic Harzards Team and analyzed at the USGS Luminescence Geochronology Laboratory. Within this report, we detail the methodology used by the USGS Luminescence Geochronology Laboratory to obtain ages including sample preparation methods, luminescence measurement, equivalent dose determination, and dating-related calculations. We recommend that this report be included as the supplementary material for any publication(s) that use the ages within this report. This version supersedes all previous age estimates and reports.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P1UT2ORT", "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.68a4aaded4be020d82aa1c0e.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_68a4aaded4be020d82aa1c0e", "keyword": ["Bullhead City", "Colorado River", "Mojave County", "Needles Fault, AZ", "USGS:68a4aaded4be020d82aa1c0e", "Western Arizona", "age estimation methods", "farming", "geochronology", "luminescence dating", "optically-stimulated luminescence", "radiation dosimetry"], "modified": "2025-12-03T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-114.404352, 34.803575, -114.398861, 34.811357", "theme": ["geospatial"], "title": "Luminescence Data for Earthquake History of the Needles Fault, Arizona"}