02070oam 2200577 450 991070779880332120161020152132.0(CKB)5470000002466556(OCoLC)886546866(EXLCZ)99547000000246655620140812d1973 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierRadiometric ages of igneous rocks from Pima, Santa Cruz, and Cochise Counties, southeastern Arizona /by Richard F. Marvin, T.W. Stern, S.C. Creasey, and H.H. Mehnert[Washington, D.C.] :United States Department of the Interior, Geological Survey,1973.Washington :United States Government Printing Office.1 online resource (iii, 27 pages) illustrationsGeological Survey bulletin ;1379Title from title screen (viewed August 4, 2014)."A tabulation of K-Ar, Pb-a, and Rb-Sr ages for igneous rocks ranging in age from Pliocene to Precambian."Includes bibliographical references (pages 7-9).Radioactive datingArizonaIgneous rocksArizonaGeologyArizonaGeologyfastIgneous rocksfastRadioactive datingfastArizonafastRadioactive datingIgneous rocksGeologyGeology.Igneous rocks.Radioactive dating.Marvin Richard F.1415496Stern T. W.Creasey S. C(Saville Cyrus),1917-Mehnert Harald H.Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910707798803321Radiometric ages of igneous rocks from Pima, Santa Cruz, and Cochise Counties, southeastern Arizona3517774UNINA