LEADER 03030oam 2200433zu 450 001 996217164703316 005 20210807004626.0 010 $a1-118-66709-3 035 $a(CKB)3450000000004214 035 $a(SSID)ssj0000904789 035 $a(PQKBManifestationID)11511246 035 $a(PQKBTitleCode)TC0000904789 035 $a(PQKBWorkID)10921473 035 $a(PQKB)10683901 035 $a(NjHacI)993450000000004214 035 $a(PPN)189676558 035 $a(EXLCZ)993450000000004214 100 $a20160829d1991 uy 101 0 $aeng 135 $aur||||||||||| 181 $ctxt 182 $cc 183 $acr 200 14$aThe Geology of the Nevada Test Site and Surrounding Area: Clark and Nye Counties, Nevada, July 5-7, 1989, Field Trip Guidebook T186 210 31$a[Place of publication not identified]$cAmerican Geophysical Union$d1991 215 $a1 online resource (31 pages) $cillustrations 225 0 $aField trip guidebook (International Geological Congress (28th : 1989 : Washington, D.C.)), T186 ;$vT188/304 300 $aBibliographic Level Mode of Issuance: Monograph 311 $a0-87590-636-2 330 $aPublished 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). 606 $aGeology $zNevada 615 0$aGeology 676 $a557.93 700 $aMckague$0875148 801 0$bPQKB 906 $aBOOK 912 $a996217164703316 996 $aThe Geology of the Nevada Test Site and Surrounding Area: Clark and Nye Counties, Nevada, July 5-7, 1989, Field Trip Guidebook T186$91953662 997 $aUNISA