01250cam a22003131  4500001001300000003000400013005001700017008004100034010001700075035001900092040002300111042001200134050002200146086001600168100003100184245013400215260004800349300005400397490004500451500004300496500007000539504003000609650004100639650004300680650001900723710003500742740010100777810005800878gs 66000259 DLC20260227111419.0770928s1966    dcuab    b   f000 0 eng    ags 66000259   a(OCoLC)3304013  aDLCcAzUdISSdDLC  apremarc00aQE75b.P9 no. 5100 aI 19.16:5101 aSmedes, Harry Wynn,d1926-10aGeology and igneous petrology of the northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana,cby Harry W. Smedes.  aWashington,bU.S. Govt. Print. Off.,c1966.  av, 116 p.billus. (1 col.), maps (1 col.)c29 cm.1 aGeological Survey professional paper 510  aPart of illustrative matter in pocket.  a"Prepared partly on behalf of the U.S. Atomic Energy Commission."  aBibliography: p. 113-116. 0aGeologyzMontanazElkhorn Mountains. 0aPetrologyzMontanazElkhorn Mountains. 0aIgneous rocks.2 aU.S. Atomic Energy Commission.0 aIgneous petrology of the northern Elkhorn Mountains, Jefferson and Broadwater Counties, Montana.2 aGeological Survey (U.S.).tProfessional paper ;v510.