01829oam 2200529I 450 991070722690332120160627154858.0(CKB)5470000002463242(OCoLC)885120912(OCoLC)654580643(EXLCZ)99547000000246324220140802d1957 ua 0engurn||||||||||crirdacontenttxtrdacontentcrdamediacrrdacarrierThe gold pan as a quantitative geologic tool /by Paul K. Theobald, JrWashington, D.C. :United States Department of the Interior, Geological Survey,1957.Washington, D.C. :Government Printing Office.1 online resource (iii, 54 pages, 18 pages of plates)Contributions to general geologyGeological Survey bulletin ;1071-A"This report concerns work done on behalf of the U.S. Atomic Energy Commission and is published with the permission of the Commission."Title from title screen (viewed July 23, 2014).Includes bibliographical references (page 54).Heavy mineralsOre-dressingHeavy mineralsfastOre-dressingfastHeavy minerals.Ore-dressing.Heavy minerals.Ore-dressing.Theobald P. K(Paul Kellogg),1928-1386433Geological Survey (U.S.),U.S. Atomic Energy Commission,COPCOPOCLCOOCLCEOCLCFGPOBOOK9910707226903321The gold pan as a quantitative geologic tool3492860UNINA