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Cordilleran Section - 111th Annual Meeting (11–13 May 2015)

Session No. 6
Monday, 11 May 2015: 1:30 PM-5:30 PM
Room 116 (Fine Arts Building)

T17. Large Eruptions in the Aleutians: New Insights into Chronology, Physical Volcanology, Tephrochronology, Petrology, and Impacts

 

Kristi L. Wallace, Christina A. Neal, Jessica F. Larsen and Kirsten Nicolaysen, Advocates
Paper #
Start Time
 
1:30 PM
Introductory Remarks
1
1:35 PM
AN INTRODUCTION TO THE VISION OF THEME SESSION T17: LARGE ERUPTIONS IN THE ALEUTIANS: NEW INSIGHTS INTO CHRONOLOGY, PHYSICAL VOLCANOLOGY, TEPHROCHRONOLOGY, PETROLOGY, AND IMPACTS
WALLACE, Kristi L., Alaska Volcano Observatory, U.S. Geological Survey, Volcano Science Center, 4210 University Drive, Anchorage, AK 99508, NEAL, Christina A., USGS, Alaska Volcano Observatory, LARSEN, Jessica F., Geology, University of Alaska Fairbanks, Fairbanks, AK 99775 and NICOLAYSEN, Kirsten, Department of Geology, Whitman College, Walla Walla, WA 99362, kwallace@usgs.gov, kwallace@usgs.gov
2
1:55 PM
HOLOCENE CALDERA-FORMING AND POSTCALDERA ERUPTIONS OF SEMISOPOCHNOI VOLCANO, WESTERN ALEUTIAN ISLANDS, ALASKA
COOMBS, Michelle L., Alaska Volcano Observatory, US Geological Survey, 4230 University Dr, Anchorage, AK 99508, LARSEN, Jessica F., Geology, University of Alaska Fairbanks, Fairbanks, AK 99775 and NEAL, Christina A., Alaska Volcano Observatory, U.S. Geological Survey, Volcano Science Center, 4210 University Drive, Anchorage, AK 99508, mcoombs@usgs.gov, mcoombs@usgs.gov
3
2:15 PM
POSTGLACIAL ERUPTIONS, MAGMA GEOCHEMISTRY, AND ONGOING SEISMICITY OF ANIAKCHAK CALDERA VOLCANO, ALEUTIAN ARC
BACON, Charles R.1, NEAL, Christina A.2, MILLER, Thomas P.2, MCGIMSEY, Robert G.2 and NYE, Christopher J.3, (1)U.S. Geological Survey, Volcano Science Center, 345 Middlefield Rd, Menlo Park, CA 94025, (2)Alaska Volcano Observatory, U.S. Geological Survey, Volcano Science Center, 4210 University Drive, Anchorage, AK 99508, (3)Alaska Volcano Observatory, University of Alaska, Geophysical Institute, 903 Koyukuk Drive, Fairbanks, AK 99775, cbacon@usgs.gov, cbacon@usgs.gov
4
2:35 PM
THE ~7000 B.P. BLACK NOSE PUMICE, A POTENTIALLY WIDESPREAD TEPHRA FROM ANIAKCHAK VOLCANO WITH ECOLOGICAL AND POSSIBLE CULTURAL IMPACT ON THE ALASKA PENINSULA
BACON, Charles R.1, HAYDEN, Leslie A.1, VANDERHOEK, Richard2, WALLACE, Kristi L.3 and HULTS, Chad P.4, (1)U.S. Geological Survey, Volcano Science Center, 345 Middlefield Rd, Menlo Park, CA 94025, (2)Office of History and Archaeology, Alaska Department of Natural Resources, 550 W. 7th Ave., Suite 1310, Anchorage, AK 99501, (3)Alaska Volcano Observatory, U.S. Geological Survey, Volcano Science Center, 4210 University Drive, Anchorage, AK 99508, (4)National Park Service, Alaska Regional Office, 240 W. 5th Ave., Anchorage, AK 99501, cbacon@usgs.gov, cbacon@usgs.gov
5
2:55 PM
HOLOCENE TEPHRA STRATIGRAPHY IN THE ISLANDS OF FOUR MOUNTAINS, ALEUTIAN ISLANDS, ALASKA: A PRELIMINARY REPORT
OKUNO, Mitsuru1, FULTON, Anne A.2, LOOPESKO, Lydia L.3, IZBEKOV, Pavel4, NICOLAYSEN, Kirsten5, HATFIELD, Virginia6, WEST, Dixie6, BRUNER, Kale M.6, SAVINETSKY, Arkady7 and KRYLOVICH, Olga7, (1)Department of Earth System Science, Fukuoka University, 8-19-1 Nanakuma, Jonan-ku,, Fukuoka, 814-0180, Japan, (2)Department of Geology, Pomona College, 185 E. 6th St, Claremont, 91711, Japan, (3)Department of Geology, Whitman College, 345 Boyer Ave, Walla Walla, WA 99362, (4)Geophysical Institute, University of Alaska, 903 Koyukuk Dr., Fairbanks, AK 99775, (5)Department of Geology, Whitman College, Walla Walla, WA 99362, (6)Biodiversity Institute, University of Kansas, Lawrence, KS 66045, (7)Laboratory of Historical Ecology, Russian Academy of Sciences, Severtsov Institute of Ecology and Evolution, Leninsky pr 33, 119071, Russia, okuno@fukuoka-u.ac.jp, okuno@fukuoka-u.ac.jp
 
3:15 PM
Break
6
3:30 PM
PRELIMINARY ANALYSIS OF A POSTGLACIAL TEPHRA SECTION AT MOUNT CLEVELAND VOLCANO, CHUGINADAK ISLAND, ALEUTIAN ARC
NEAL, Christina A., Alaska Volcano Observatory, U.S. Geological Survey, Anchorage, AK 99508, IZBEKOV, Pavel, Geophysical Institute, University of Alaska-Fairbanks, PO Box 757320, Fairbanks, 99775 and NICOLAYSEN, Kirsten P., Department of Geology, Whitman College, 345 Boyer AVE, Walla Walla, WA 99362, peizbekov@alaska.edu, peizbekov@alaska.edu
7
3:50 PM
NEW EVIDENCE OF A LARGE ERUPTION IN THE ISLANDS OF THE FOUR MOUNTAINS, AK
FULTON, Anne A., Geology Department, Pomona College, 185 E. 6th St, Claremont, CA 91711, IZBEKOV, Pavel, Geophysical Institute, University of Alaska, 903 Koyukuk Dr., Fairbanks, AK 99775, LACKEY, Jade Star, Geology Department, Pomona College, Claremont, CA 91711 and NICOLAYSEN, Kirsten, Department of Geology, Whitman College, Walla Walla, WA 99362, aaf02011@pomona.edu, aaf02011@pomona.edu
8
4:10 PM
THE OBSERVED ROLE OF EXTERNAL WATER IN LARGE ALEUTIAN ARC ERUPTIONS
WAYTHOMAS, Christopher, U.S. Geological Survey, Alaska Volcano Observatory, 4210 University Drive, Anchorage, AK 99508, chris@usgs.gov, chris@usgs.gov
9
4:30 PM
GEOSPATIAL TEPHRA DISTRIBUTION DATABASE OF LARGE VOLCANIC ERUPTIONS IN ALASKA
SCHAEFER, Janet R., Alaska Division of Geological & Geophysical Surveys, Alaska Volcano Observatory, 3354 College Rd, Fairbanks, AK 99709, WALLACE, Kristi L., Alaska Volcano Observatory, U.S. Geological Survey, Volcano Science Center, 4210 University Drive, Anchorage, AK 99508, NEAL, Christina A., Alaska Volcano Observatory, U.S. Geological Survey, Volcano Science Center, 4210 University Drive, Anchorage, AK 99508 and CAMERON, Cheryl E., Alaska Division of Geological & Geophysical Surveys, 3354 College Road, Fairbanks, AK 99709, janet.schaefer@alaska.gov, janet.schaefer@alaska.gov
10
4:50 PM
ALASKA TEPHRA DATABASE
CAMERON, Cheryl E.1, SCHAEFER, Janet R.2, WALLACE, Kristi L.3 and SNEDIGAR, Seth1, (1)Alaska Division of Geological & Geophysical Surveys, 3354 College Road, Fairbanks, AK 99709, (2)Alaska Division of Geological & Geophysical Surveys, Alaska Volcano Observatory, 3354 College Rd, Fairbanks, AK 99709, (3)Alaska Volcano Observatory, U.S. Geological Survey, Volcano Science Center, 4210 University Drive, Anchorage, AK 99508, cheryl.cameron@alaska.gov, cheryl.cameron@alaska.gov
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