01598nam 2200373Ia 450 991070193780332120240319214005.0(CKB)5470000002422742(OCoLC)801694059(EXLCZ)99547000000242274220120725d2012 ua 0engurmn||||a||||txtrdacontentcrdamediacrrdacarrierThe systematic geologic mapping program and a quadrangle-by-quadrangle analysis of time-stratigraphic relations within oil shale-bearing rocks of the Piceance Basin, western Colorado[electronic resource] /by Ronald C. Johnson[Reston, Va.] :U.S. Dept. of the Interior, U.S. Geological Survey,[2012]1 online resource (iv, 28 pages) color illustrations, color mapsScientific investigations report ;2012-5041Title from title screen (viewed July 25, 2012).Includes bibliographical references (pages 22-28)GeologyColoradoPiceance Creek BasinOil-shalesColoradoPiceance Creek BasinGeologyOil-shalesJohnson Ronald C(Ronald Carl),1950-1381625Geological Survey (U.S.)GPOGPOBOOK9910701937803321The systematic geologic mapping program and a quadrangle-by-quadrangle analysis of time-stratigraphic relations within oil shale-bearing rocks of the Piceance Basin, western Colorado4137645UNINA