Session No. 35 Wednesday, May 15, 2002

8:00 AM-12:00 PM, CH2M Hill Alumni Center: Ballroom 110A
T6. Hazards and Risks from Cascade Volcanoes
Brittain E. Hill and Edward Taylor, Presiding
Start Time
8:00 AM Introductory Remarks
8:05 AM RADIOMETRIC DATING OF THREE SISTERS VOLCANIC FIELD: CALVERT, Andrew and HILDRETH, Wes, US Geol Survey, 345 Middlefield Road, MS-910, Menlo Park, CA 94025, acalvert@usgs.gov
8:20 AM ONGOING MAGMA INTRUSION BENEATH THE THREE SISTERS VOLCANIC CENTER, CENTRAL OREGON CASCADE RANGE, USA, INFERRED FROM SATELLITE INSAR: WICKS, Charles W.1, DZURISIN, Daniel2, INGEBRITSEN, Steven3, THATCHER, Wayne1, LU, Zhong4, and IVERSON, Justin5, (1) U.S. Geol. Survey, 345 Middlefield Rd, MS 977, Menlo Park, CA 94025, cwicks@usgs.gov, (2) Cascades Volcano Observatory, U. S. Geol. Survey, 1300 SE Cardinal Court, Bldg. 10, Vancouver, WA 98683, (3) U. S. Geol. Survey, 345 Middlefield Rd, MS 472, Menlo Park, CA 94025, (4) EROS Data Center, U. S. Geol. Survey, Raytheon, 47914 252nd St, Sioux Falls, SD 57198, (5) Department of Geosciences, Oregon State Univ, Corvallis, OR 97331
8:35 AM CO2 AND H2S IN THE AIR OVER THE GROUND-SWELLING AREA WEST OF SOUTH SISTER VOLCANO, CENTRAL OREGON CASCADE RANGE: GERLACH, Terrence M., MCGEE, Kenneth A., and DOUKAS, Michael P., U.S. Geological Survey, Cascades Volcano Observatory, 1300 SE Cardinal Court #100, Vancouver, WA 98683-9589, tgerlach@usgs.gov
8:50 AM MAGMA INTRUSION RATE IN THE THREE SISTERS AREA OF THE CENTRAL OREGON CASCADES INFERRED BY DIFFERENT METHODS: EVANS, William C.1, INGEBRITSEN, Steve E.1, WICKS, Charles W.1, MARINER, Robert H.1, KENNEDY, B. Mack2, and VAN SOEST, Matthias C.2, (1) U.S. Geol. Survey, 345 Middlefield Rd, Menlo Park, CA 94025, wcevans@usgs.gov, (2) Lawrence Berkeley National Lab, Berkeley, CA 94720
9:05 AM USGS RESPONSE TO ONGOING CRUSTAL UPLIFT AT THREE SISTERS VOLCANIC CENTER, OREGON: SCOTT, William E., US Geol Survey, 5400 Macarthur Blvd, Vancouver, WA 98661-7049, wescott@usgs.gov.
9:20 AM THE LEGACY OF A CHRONIC HAZARD-- SEDIMENT REDISTRIBUTION FOLLOWING EXPLOSIVE ERUPTIONS: MAJOR, Jon J., Cascades Volcano Observatory, U.S. Geol Survey, 1300 SE Cardinal Court, Bldg 10, Suite 100, Vancouver, WA 98683, jjmajor@usgs.gov.
9:35 AM RECENT NON-ERUPTIVE DEBRIS FLOWS AT MT. HOOD, OREGON: DEROO, Thomas G., Mount Hood National Forest, 16400 Champion Way, Sandy, OR 97055, tgderoo@fs.fed.us and HEDEEN, Christopher D., Colton High School, 30205 S. Wall Street, Colton, OR 97017
9:50 AM POST-ERUPTION GLACIER DEVELOPMENT WITHIN THE CRATER OF MOUNT ST. HELENS, WASHINGTON, U.S.A: SCHILLING, Steve P.1, CARRARA, Paul E.2, THOMPSON, Ren A.2, and IWATSUBO, Eugene Y.1, (1) U.S. Geological Survey, Cascades Volcano Observatory, 1300 SE Cardinal Court, Building 10 Suite 100, Vancouver, WA 98683, sschilli@usgs.gov, (2) U.S. Geological Survey, Denver Federal Center, Box 25046 MS 913, Denver, CO 80225
10:05 AM Break
10:20 AM THE MOUNT BACHELOR VOLCANIC CHAIN A MODEL FOR FUTURE MAFIC ERUPTIONS IN THE CENTRAL OREGON HIGH CASCADES: GARDNER, C. A. and SCOTT, W. E., Cascades Volcano Observatory, U.S. Geological Survey, 1300 Cardinal Court, Bldg. 10, Suite 100, Vancouver, WA 98683, cgardner@usgs.gov
10:35 AM BASALTIC ANDESITE AND PALAGONITIC TUFF AT NORTH SISTER VOLCANO, OREGON HIGH CASCADES: SCHMIDT, Mariek E., Geosciences, Oregon State Univ, 104 Wilkenson Hall, Corvallis, OR 97330, schmidtm@geo.orst.edu, GRUNDER, Anita L., Geosciences, Oregon State Univ, 104 Wilkinson Hall, Corvallis, OR 97331-5506, and CONREY, Richard M., Geology, Washington State Univ, Pullman, WA 99164
10:50 AM DESERT SPRING TUFF, CENTRAL OREGON CASCADE RANGE: NEW PERSPECTIVES ON SOURCE, GENESIS, AND HAZARDS: CONREY, R. M.1, TAYLOR, E. M.2, SHERROD, D. R.3, DONNELLY-NOLAN, J. M.4, and BULLEN, T. D.4, (1) Geology, Washington State Univ, Pullman, WA 99164, conrey@mail.wsu.edu, (2) Geosciences, Oregon State Univ, Corvallis, OR 97331, (3) USGS, P.O. Box 51, Hi Natl Park, HI 96718, (4) USGS, 345 Middlefield Rd, Menlo Park, CA 94025
11:05 AM A QUANTITATIVE TEXTURAL ANALYSIS OF PYROCLASTS FROM THE ERUPTIVE EVENTS OF 1980 AT MOUNT ST. HELENS: MCCONNELL, Siobhan R., Eugene, OR 97401, smcconne@gladstone.uoregon.edu and CASHMAN, Katharine V., Univ Oregon, 1272 University of Oregon, Eugene, OR 97403-1272
11:20 AM A FUNDAMENTAL ROLE FOR PROCESS MODELS IN VOLCANIC HAZARD ASSESSMENTS: HILL, Brittain E., CNWRA, Southwest Rsch Institute, PO Box 28510, San Antonio, TX 78228-0510, bhill@swri.edu.
11:35 AM Discussion

Back to the Cordilleran Section - 98th Annual Meeting (May 1315, 2002)