{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Randell J. Laczniak", "hasEmail": "mailto:rlaczni@usgs.gov"}, "description": "This digital data set defines the boundary of the southwestern Nevada volcanic field (SWNVF), \nan area of thick, regionally distributed volcanic rocks within the Death Valley regional ground-\nwater flow system (DVRFS), a 100,000-square-kilometer region of southern Nevada and California. \nThe SWNVF boundary encompasses an approximate 12,000 square-kilometer region and is \nbased on a map of hydrogeologic controls on ground-water flow by Laczniak and others (1996). \nThe SWNVF is characterized in part by a thick section of regionally distributed welded tuffs \nderived from a central complex of nested calderas that erupted from about 16 Ma to 5 Ma.  \nThe SWNVF boundary defines the extent of these particular volcanics and was used to \ndistinguish material property zones in the DVRFS.  These zone arrays are used as input to \nthe DVRFS transient ground-water flow model, a regional-scale model developed by the U.S. \nGeological Survey (USGS) for the U.S. Department of Energy (DOE) to support investigations \nat the Nevada Test Site (NTS) and at Yucca Mountain, Nevada (see \"Larger Work Citation\", \nChapter A, page 8, for details).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/P9280BSV", "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.26f001d8-1d49-4109-a227-4ba70a031d6b.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_26f001d8-1d49-4109-a227-4ba70a031d6b", "keyword": ["Amargosa Desert", "Ash Meadows", "California", "California Valley", "Chicago Valley", "China Ranch", "Clark County", "Clayton Valley", "Coal Valley", "Death Valley", "Death Valley regional ground-water flow system", "Esmeralda County", "Eureka Valley", "Franklin Lake", "Franklin Well", "Garden Valley", "Inyo County", "Kern County", "Las Vegas Valley", "Lincoln County", "Mesquite Valley", "Mineral County", "Mono County", "Nevada", "Nevada Test Site", "Nye County", "Oasis Valley", "Owlshead Mountains", "Pahranagat Range", "Pahrump Valley", "Panamint Range", "Penoyer Valley", "Railroad Valley", "Resting Spring", "Saline Valley", "San Bernadino County", "Sarcobatus Flat", "Sheep Range", "Shoshone", "Silurian Valley", "Southwest Nevada Volcanic Field", "Spring Mountains", "Stewart Valley", "Stone Cabin Valley", "Tecopa", "USGS:26f001d8-1d49-4109-a227-4ba70a031d6b", "Yucca Mountain", "flow model", "ground water", "hydrogeologic material property", "hydrogeology", "hydrology", "nonwelded tuffs", "southern Nevada", "transient ground-water model", "tuffs", "volcanic rocks", "welded tuffs"], "modified": "2020-11-17T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-117.556864, 36.629465, -115.801880, 37.704409", "theme": ["geospatial"], "title": "Boundary of the southwestern Nevada volcanic field from Laczniak and others (1996), for the Death Valley regional ground-water flow system study, Nevada and California"}