T231 The Cascade Volcanic Arc System (Posters)

Presentations

• 8:00 AM
  OXYGEN ISOTOPE CONSTRAINTS ON MAGMATIC EVOLUTION AND SOURCES AT LASSEN VOLCANIC CENTER, CALIFORNIA
  Todd C. Feeley, Montana State Univ, Bozeman, MT and Michael A. Clynne, U.S. Geol Survey, Menlo Park, CA and Toti Larson, Univ of New Mexico, Albuequerque, NM
  58484 (Technical Sessions)
• 8:00 AM
  HIGH-SR MAGNESIAN ANDESITES OF THE RAFFUSE CREEK-MAMQUAM RIVER AREA, SW BRITISH COLUMBIA: EVIDENCE FOR MULTISTAGE EVOLUTION OF HYDROUS MANTLE MELTS
  James H. Powell, Univ of Alabama, Tuscaloosa, AL and Nathan L. Green, The Univ of Alabama, Tuscaloosa, AL
  60432 (Technical Sessions)
• 8:00 AM
  NEW RESULTS FROM A PROPOSED PBO CASCADE VOLCANO CLUSTER I: DEFORMATION IN THE MEDICINE LAKE REGION OF NORTHEAST CALIFORNIA FROM LEVELING, GPS, AND INSAR
  Michael Poland, US Geol Survey, Vancouver, WA and Daniel Dzurisin, US Geol Survey, Vancouver, WA and William Hammond, US Geol Survey, Menlo Park, CA and Elliot Endo, US Geol Survey, Vancouver, WA and Eugene Iwatsubo, US Geol Survey, Vancouver, WA and Michael Lisowski, US Geol Survey, Vancouver, WA
  61141 (Technical Sessions)
• 8:00 AM
  NEW RESULTS FROM A PROPOSED PBO CASCADE VOLCANO CLUSTER II: INSAR, GPS, AND TILT-LEVELING DATA FROM THE THREE SISTERS AREA, CENTRAL OREGON
  Daniel Dzurisin, US Geol Survey, Vancouver, WA and Elliot Endo, US Geol Survey, Vancouver, WA and Eugene Iwatsubo, US Geol Survey, Vancouver, WA and Michael Lisowski, US Geol Survey, Vancouver, WA and Michael Poland, US Geol Survey, Vancouver, WA and Charles Wicks, U.S. Geol Survey, Menlo Park, CA
  61720 (Technical Sessions)
• 8:00 AM
  NEW RESULTS FROM A PROPOSED PBO CASCADE VOLCANO CLUSTER III: POST-ERUPTIVE DEFORMATION OF MOUNT ST. HELENS, WASHINGTON, FROM EDM AND GPS
  Michael Lisowski, US Geol Survey, Vancouver, WA and Daniel Dzurisin, US Geol Survey, Vancouver, WA and Elliot Endo, US Geol Survey, Vancouver, WA and Eugene Iwatsubo, US Geol Survey, Vancouver, WA and Michael Poland, US Geol Survey, Vancouver, WA
  62010 (Technical Sessions)
• 8:00 AM
  THE PERSISTENCE OF NORTH SISTER BASALTIC ANDESITE AND IMPLICATIONS FOR DEEP CRUSTAL PROCESSES IN THE CENTRAL OREGON HIGH CASCADES
  Mariek E. Schmidt, Oregon State Univ, Corvallis, OR and Anita L. Grunder, Oregon State Univ, N/A
  62520 (Technical Sessions)
• 8:00 AM
  THE MULTIPLE PERSONALITIES OF ZONED CRYSTALS: COMPLEX GROWTH HISTORIES, THE MIXING PHYLOGENY, AND GEOCHRONOLOGY, WITH APPLICATIONS TO THE LASSEN VOLCANIC SYSTEM
  Glen Wallace, Univ of Washington, Seattle, WA and George W. Bergantz, Univ of Washington, Seattle, WA
  62877 (Technical Sessions)
• 8:00 AM
  MEDICINE LAKE VOLCANO: RESULTS OF GEOLOGIC MAPPING AND ARGON DATING
  Julie M. Donnelly-Nolan, Menlo Park, CA and Marvin A. Lanphere, U.S. Geol Survey, Menlo Park, CA and David W. Ramsey, U.S. Geol Survey, Menlo Park, CA
  63234 (Technical Sessions)
• 8:00 AM
  RELATION OF CONVERGENT MARGIN VOLCANISM TO SLAB AGE AND THERMAL STRUCTURE: POSSIBLE INFLUENCES ON ANDESITIC MAGMATISM OF THE NORTHERN CASCADIA SUBDUCTION SYSTEM
  Nathan L. Green, The Univ of Alabama, Tuscaloosa, AL
  63407 (Technical Sessions)
• 8:00 AM
  TWO YOUNG SILICIC SISTERS AT THREE SISTERS VOLCANIC FIELD, OREGON
  Judy Fierstein, U.S. Geol Survey, Menlo Park, CA and Andrew Calvert, U.S. Geol Survey, Menlo Park, CA and Wes Hildreth, U.S. Geol Survey, Menlo Park, CA
  63745 (Technical Sessions)
• 8:00 AM
  REMOTE SENSING AS A TOOL FOR GEOLOGIC MAPPING AT MOUNT ST. HELENS, WASHINGTON
  Joel E. Robinson, U. S. Geol Survey, Menlo Park, CA and Joel E. Robinson, U. S. Geol Survey, Menlo Park, CA and David W. Ramsey, U. S. Geol Survey, Menlo Park, CA and Michael A. Clynne, U. S. Geol Survey, Menlo Park, CA and Steve P. Schilling, U. S. Geol Survey, Vancouver, WA and Ren A. Thompson, U. S. Geol Survey, Denver, CO
  64009 (Technical Sessions)
• 8:00 AM
  INSAR ANALYSIS OF SURFACE DEFORMATION AT MOUNT ST. HELENS, WASHINGTON
  Angela K. Diefenbach, Central Washington Univ, Ellensburg, WA and Michael P. Poland, US Geol Survey, Vancouver, WA
  64386 (Technical Sessions)
• 8:00 AM
  ERUPTIVE STYLE AND HISTORY OF MOUNT HOOD VOLCANO, OREGON
  W.E. Scott, U.S. Geological Survey, Vancouver, WA and C.A. Gardner, U.S. Geol Survey, Vancouver, WA and R.I. Tilling, U.S. Geol Survey, Menlo Park, CA and M.A. Lanphere, U.S. Geol Survey, Menlo Park, CA
  64415 (Technical Sessions)
• 8:00 AM
  CONSTRAINTS ON THE TIMESCALES AND MIXING DYNAMICS OF THE MAGMA RECHARGE EVENT ASSOCIATED WITH THE 1915 ERUPTION OF LASSEN PEAK, CALIFORNIA
  Morgan J. Salisbury, Central Washington Univ, Ellensburg, WA and Wendy A. Bohrson, Central Washington Univ, Ellensburg, WA and Michael A. Clynne, U.S. Geol Survey, Menlo Park, CA
  65259 (Technical Sessions)
• 8:00 AM
  GEOPHYSICAL INVESTIGATIONS OF THE CASCADE SUBDUCTION ZONE, NORTH AMERICA
  Tanya Romanyuk, Institute of Physics of the Earth, Moscow, N/A and Walter D. Mooney, USGS, Menlo Park, CA and Richard Blakely, USGS, Menlo Park, CA
  66885 (Technical Sessions)