01825oam 2200445 450 991070865040332120170411082628.0(CKB)5470000002470722(OCoLC)889716050(EXLCZ)99547000000247072220140901d1993 ua 0engurn||||||||||txtrdacontentcrdamediacrrdacarrierHydrothermal alteration in the Mount Hood area, Oregon /by Keith E. Bargar, Terry E.C. Keith, and Melvin H. BeesonWashington :United States Government Printing Office,1993.1 online resource (v, 70 pages) illustrations, mapsU.S. Geological Survey bulletin ;2054Title from title screen (viewed August 25, 2014)."A study of late Tertiary hydrothermal alteration corresponding to zeolite-facies to greenschist-facies metamorphism and Quaternary hydrothermal and fumarolic minerals from outcrops and geothermal drill holes near Mount Hood, Oregon."Also available online in PDF format from the U.S. Geological Survey Warehouse (http://pubs.er.usgs.gov/).Includes bibliographical references (pages 49-53).Geology, StratigraphicTertiaryHydrothermal alterationOregonHood, Mount, RegionGeology, StratigraphicHydrothermal alterationBargar Keith E.1390673Beeson Melvin H.Keith Terry E. C.Geological Survey (U.S.),COPCOPOCLCOGPOBOOK9910708650403321Hydrothermal alteration in the Mount Hood area, Oregon3507917UNINA