LEADER 01973oam 2200529I 450 001 9910706503503321 005 20171220085251.0 035 $a(CKB)5470000002457417 035 $a(OCoLC)896809642 035 $a(OCoLC)995470000002457417 035 $a(EXLCZ)995470000002457417 100 $a20141123d1972 ua 0 101 0 $aeng 135 $aurmn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aInstrumentation studies of earth tremors related to geology and to mining at the Somerset coal mine, Colorado /$fby Frank W. Osterwald [and three others] 210 1$aWashington :$cUnited States Department of the Interior, Geological Survey,$d1972. 215 $a1 online resource (iii, 27 pages) $cillustrations 225 1 $aGeological Survey professional paper ;$v762 300 $aTitle from title screen (viewed September 30, 2014). 300 $a"The relation of bedrock and surficial geology, coal mining, and a nuclear explosion to tremors in part of the Grand Mesa coal field, Colorado." 320 $aIncludes bibliographical references (page 27). 606 $aCoal$xGeology$zColorado$zDelta County 606 $aCoal$xGeology$zColorado$zGunnison County 606 $aSeismometry 606 $aCoal$xGeology$2fast 606 $aSeismometry$2fast 607 $aColorado$zDelta County$2fast 607 $aColorado$zGunnison County$2fast 615 0$aCoal$xGeology 615 0$aCoal$xGeology 615 0$aSeismometry. 615 7$aCoal$xGeology. 615 7$aSeismometry. 700 $aOsterwald$b Frank W.$01391210 712 02$aGeological Survey (U.S.), 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bGPO 906 $aBOOK 912 $a9910706503503321 996 $aInstrumentation studies of earth tremors related to geology and to mining at the Somerset coal mine, Colorado$93504381 997 $aUNINA