03030oam 2200433zu 450 99621716470331620210807004626.01-118-66709-3(CKB)3450000000004214(SSID)ssj0000904789(PQKBManifestationID)11511246(PQKBTitleCode)TC0000904789(PQKBWorkID)10921473(PQKB)10683901(NjHacI)993450000000004214(PPN)189676558(EXLCZ)99345000000000421420160829d1991 uy engur|||||||||||txtccrThe Geology of the Nevada Test Site and Surrounding Area: Clark and Nye Counties, Nevada, July 5-7, 1989, Field Trip Guidebook T186[Place of publication not identified]American Geophysical Union19911 online resource (31 pages) illustrationsField trip guidebook (International Geological Congress (28th : 1989 : Washington, D.C.)), T186 ;T188/304Bibliographic Level Mode of Issuance: Monograph0-87590-636-2 Published by the American Geophysical Union as part of the Field Trip Guidebooks Series, Volume 186. The Nevada Test Site (NTS) was established on December 18, 1950, to provide an area for continental testing of nuclear devices. In January of 1951, testing began with an airdrop into Frenchman Flat in conjunction with Operation Ranger. In addition to airdrops, above ground testing included surface detonations, tower shots, and balloon suspensions. Underground testing began in 1957, and since 1963, all events have been buried in large-diameter drill holes or tunnels. Geologists from the U.S. Geological Survey (USGS) mapped much of the NTS region between 1960 and 1965. These maps formed the basis for subsequent studies by Lawrence Livermore National Laboratory, Los Alamos National Laboratory, Sandia National Laboratories, and the USGS. A good understanding of the stratigraphy, structure, geochemistry, and physical properties of the rocks is essential for containment of underground nuclear tests. Many of the recent geologic studies at NTS, particularly in Yucca Flat, Pahute Mesa, and Mid Valley, are aimed at understanding subsurface geology to help ensure complete containment. The potential nuclear waste site at Yucca Mountain is located approximately 100 miles (160 km) by road northwest of Las Vegas, Nevada, and situated on land controlled by three Federal agencies; the Bureau of Land Management, the Department of Energy (Nevada Test Site), and the U.S. Air Force (Nellis Air Force Range).Geology NevadaGeology 557.93Mckague875148PQKBBOOK996217164703316The Geology of the Nevada Test Site and Surrounding Area: Clark and Nye Counties, Nevada, July 5-7, 1989, Field Trip Guidebook T1861953662UNISA