01743oam 2200469Ia 450 991069670580332120080718104125.0(CKB)5470000002381818(OCoLC)172994193(EXLCZ)99547000000238181820070918d2007 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierIntegrated geologic, geochemical, and geophysical studies of Big Bend National Park, Texas[electronic resource] /[by John E. Gray ... and others][Reston, Va.] :U.S. Dept. of the Interior, U.S. Geological Survey,[2007]6 unnumbered pages digital, PDF fileFact sheet ;2007-3078Title from title screen (viewed on July 17, 2008)."September 2007."Includes bibliographical references.GeophysicsTexasBig Bend National ParkGeologyTexasBig Bend National ParkIgneous rocksTexasBig Bend National ParkWater qualityTexasBig Bend National ParkMercury mines and miningEnvironmental aspectsTexasBig Bend National ParkGeophysicsGeologyIgneous rocksWater qualityMercury mines and miningEnvironmental aspectsGray John E.1956-1401640Geological Survey (U.S.)GISGISGPOBOOK9910696705803321Integrated geologic, geochemical, and geophysical studies of Big Bend National Park, Texas3529763UNINA