T218 Hydrothermal Alteration on Active Volcanoes: Processes, Rates, and Applications to Hazards and Resources

Wednesday, 5 November 2003
8:00 AM - 12:00 PM

Presentations

• 8:05 AM
  ALTERATION, DEGRADATION, AND SLOPE FAILURE OF VOLCANOES
  Jeffrey W. Hedenquist, Colorado School of Mines, Golden, CO and Richard H. Sillitoe, London, N/A
  60007 (Technical Sessions)
• 8:25 AM
  HIGH-TEMPERATURE HYDROTHERMAL ACTIVITY BENEATH THE CERRO ESCORIAL VOLCANO, NW ARGENTINA, AS SAMPLED BY AN EXPLOSIVE VOLCANIC ERUPTION
  Alexander Iriondo and Jeremy P. Richards, Univ of Alberta, Edmonton, AB and Gabriela Mora-Klepeis and Arturo Barrón-Díaz and Jay Chapman
  59693 (Technical Sessions)
• 8:40 AM
  HYDROTHERMAL ALTERATION ASSOCIATED WITH THE PLIOCENE MUINE VOLCANO AND BASE-METAL MINERALIZATION AT THE TOYOHA DEPOSIT, NORTHEAST JAPAN
  Yasushi Watanabe, AIST, Tsukuba, N/A
  67509 (Technical Sessions)
• 8:55 AM
  SPATIALLY CONTINUOUS ALTERATION MAPPING OVER AN ENTIRE CALDERA: NEW CONSTRAINTS ON THE GENESIS, GEOCHEMISTRY, AND STRUCTURAL CONTROL OF HYDROTHERMAL MINERALIZATION AT LONG VALLEY, CA, USA
  Brigette A. Martini, HyVista Corporation, Baulkham Hills, NSW, N/A and Eli A. Silver, Univ California - Santa Cruz, Santa Cruz, CA
  64829 (Technical Sessions)
• 9:10 AM
  AIRBORNE GAS SURVEILLANCE OF CASCADES VOLCANOES
  T.M. Gerlach, Cascades Volcano Observatory, Vancouver, WA and K.A. McGee, Cascades Volcano Observatory, Vancouver, WA and M.P. Doukas, Cascades Volcano Observatory, Vancouver, WA
  63963 (Technical Sessions)
• 9:25 AM
  HYDROTHERMAL ALTERATION ON THE CASCADE STRATOVOLCANOES: A REMOTE SENSING SURVEY
  James K. Crowley, U.S. Geol Survey, Reston, VA and Bernard E. Hubbard, U.S. Geol Survey, Reston, VA and John C. Mars, U.S. Geol Survey, Reston, VA
  65588 (Technical Sessions)
• 9:55 AM
  ALTERATION AND THE MAGMATIC HISTORY OF MT. RAINIER, WASHINGTON
  Thomas W. Sisson, US Geol Survey, Menlo Park, CA and Marvin A. Lanphere, US Geol Survey, Menlo Park, CA and Andrew T. Calvert, US Geol Survey, Menlo Park, CA
  62729 (Technical Sessions)
• 10:10 AM
  INVOLVEMENT OF A HYDROTHERMAL SYSTEM IN THE CATASTROPHIC 5600 BP ERUPTION OF MOUNT RAINIER
  James W. Vallance, US Geol Survey, Vancouver, WA and George N. Breit, US Geol Survey, Denver, CO and David A. John, US Geol Survey, Menlo Park, CA
  64533 (Technical Sessions)
• 10:25 AM
  HYPOGENE HYDROTHERMAL ALTERATION OF QUATERNARY VOLCANIC ROCKS FROM MOUNT RAINIER, WASHINGTON
  David A. John, U.S. Geol Survey, Menlo Park, CA and George N. Breit, U.S. Geol Survey, Denver, CO and Robert O. Rye, U.S. Geol Survey, Denver, CO and Thomas W. Sisson, U.S. Geol Survey, Menlo Park, CA and James W. Vallance, U.S. Geol Survey, Vancouver, WA
  60021 (Technical Sessions)
• 10:40 AM
  ISOTOPIC STUDIES OF SULFUR-BEARING MINERALS IN THE CLASTS AND MATRIX OF HOLOCENE DEBRIS FLOWS FROM MOUNT RAINIER, WASHINGTON
  George N. Breit, U.S. Geol Survey, Denver, CO and Robert O. Rye, Stable Isotope Lab, Denver, CO and David A. John, US Geol Survey, Menlo Park, CA and Cynthia L. Kester, Stable Isotope Lab, Denver, CO and Cyrus J. Berry, U.S. Geol Survey, Denver, CO
  65176 (Technical Sessions)
• 11:00 AM
  CHEMICAL MODELING OF VOLCANIC GAS INTERACTIONS WITH GROUND WATER AND ANDESITE: INSIGHTS INTO HYDROTHERMAL ALTERATION AT MOUNT RAINIER, WASHINGTON
  G.S. Plumlee, U.S. Geol Survey, Denver, CO and R.O. Rye, U.S. Geol Survey, Denver, CO and G.N. Breit, U.S. Geol Survey, Denver, CO and David A. John, US Geol Survey, Menlo Park, CA
  65483 (Technical Sessions)
• 11:15 AM
  AEROGEOPHYSICAL MEASUREMENTS OF HYDROTHERMALLY ALTERED ZONES AT MOUNT ADAMS, WASHINGTON
  Carol Finn, US Geological Survey MS 964, Federal Ctr Bldg 20, Denver, CO and Maryla Deszcz-Pan, U.S. Geolgical Survey, Denver, CO and Eric Anderson, U.S. Geolgical Survey, Denver, CO
  66158 (Technical Sessions)
• 11:35 AM
  ALTERATION OF HYALOCLASTITES WITHIN THE FLANKS OF HAWAIIAN VOLCANOES: INSIGHTS FROM THE HSDP 3-KM DRILL HOLE AND IMPLICATIONS FOR SLOPE FAILURES
  Peter Schiffman, Univ California - Davis, Davis, CA and Anthony W. Walton, Univ of Kansas, Lawrence, KS
  66784 (Technical Sessions)