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

Monday, 11 May 2015
1:30 PM - 5:30 PM
Room 116

Presentations

• 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
  Kristi L. Wallace, U.S. Geological Survey, Volcano Science Center, Anchorage, AK and Christina A. Neal, Alaska Volcano Observatory, N/A and Jessica F. Larsen, Geophysical Institute Alaska Volcano Observatory, Fairbanks, AK and Kirsten P. Nicolaysen, Whitman College, Walla Walla, WA
  255065 (Theme Sessions)
• 1:55 PM
  HOLOCENE CALDERA-FORMING AND POSTCALDERA ERUPTIONS OF SEMISOPOCHNOI VOLCANO, WESTERN ALEUTIAN ISLANDS, ALASKA
  Michelle L. Coombs, US Geological Survey, Anchorage, AK and Jessica F. Larsen, Geophysical Institute Alaska Volcano Observatory, Fairbanks, AK and Christina A. Neal, U.S. Geological Survey, Volcano Science Center, Anchorage, AK
  254815 (Theme Sessions)
• 2:15 PM
  POSTGLACIAL ERUPTIONS, MAGMA GEOCHEMISTRY, AND ONGOING SEISMICITY OF ANIAKCHAK CALDERA VOLCANO, ALEUTIAN ARC
  Charles Bacon, California Volcano Observatory, Menlo Park, CA and Christina A. Neal, U.S. Geological Survey, Volcano Science Center, Anchorage, AK and Thomas P. Miller, Alaska Volcano Observatory, Anchorage, AK and Robert G. McGimsey, U.S. Geological Survey, Volcano Science Center, Anchorage, AK and Christopher J. Nye, University of Alaska, Fairbanks, AK
  254925 (Theme Sessions)
• 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
  Charles Bacon, California Volcano Observatory, Menlo Park, CA and Leslie A. Hayden, Menlo Park, CA and Richard VanderHoek, Alaska Department of Natural Resources, Anchorage, AK and Kristi L. Wallace, U.S. Geological Survey, Volcano Science Center, Anchorage, AK and Chad P. Hults, Anchorage, AK
  254921 (Theme Sessions)
• 2:55 PM
  HOLOCENE TEPHRA STRATIGRAPHY IN THE ISLANDS OF FOUR MOUNTAINS, ALEUTIAN ISLANDS, ALASKA: A PRELIMINARY REPORT
  Mitsuru Okuno, Fukuoka University, Fukuoka and Olga Krylovich, Russian Academy of Sciences, Leninsky pr 33 and Anne A. Fulton, Pomona College, Claremont and Lydia L. Loopesko, Whitman College, Walla Walla, WA and Pavel Izbekov, University of Alaska, Fairbanks, AK and Kirsten P. Nicolaysen, Whitman College, Walla Walla, WA and Virginia Hatfield, University of Kansas, Lawrence, KS and Dixie West, University of Kansas, Lawrence, KS and Kale M. Bruner, University of Kansas, Lawrence, KS and Arkady Savinetsky, Russian Academy of Sciences, Leninsky pr 33
  255186 (Theme Sessions)
• 3:30 PM
  PRELIMINARY ANALYSIS OF A POSTGLACIAL TEPHRA SECTION AT MOUNT CLEVELAND VOLCANO, CHUGINADAK ISLAND, ALEUTIAN ARC
  Christina A. Neal, U.S. Geological Survey, Anchorage, AK and Pavel Izbekov, University of Alaska-Fairbanks, Fairbanks and Kirsten P. Nicolaysen, Whitman College, Walla Walla, WA
  255118 (Theme Sessions)
• 3:50 PM
  NEW EVIDENCE OF A LARGE ERUPTION IN THE ISLANDS OF THE FOUR MOUNTAINS, AK
  Anne A. Fulton, Pomona College, Claremont, CA and Pavel Izbekov, University of Alaska, Fairbanks, AK and Jade Star Lackey, Pomona College, Claremont, CA and Kirsten P. Nicolaysen, Whitman College, Walla Walla, WA
  255192 (Theme Sessions)
• 4:10 PM
  THE OBSERVED ROLE OF EXTERNAL WATER IN LARGE ALEUTIAN ARC ERUPTIONS
  Christopher Waythomas, Alaska Volcano Observatory, Anchorage, AK
  254890 (Theme Sessions)
• 4:30 PM
  GEOSPATIAL TEPHRA DISTRIBUTION DATABASE OF LARGE VOLCANIC ERUPTIONS IN ALASKA
  Janet R. Schaefer, Alaska Volcano Observatory, Fairbanks, AK and Kristi L. Wallace, U.S. Geological Survey, Volcano Science Center, Anchorage, AK and Christina A. Neal, U.S. Geological Survey, Volcano Science Center, Anchorage, AK and Cheryl E. Cameron, Fairbanks, AK
  254895 (Theme Sessions)
• 4:50 PM
  ALASKA TEPHRA DATABASE
  Cheryl E. Cameron, Fairbanks, AK and Janet R. Schaefer, Alaska Volcano Observatory, Fairbanks, AK and Kristi L. Wallace, U.S. Geological Survey, Volcano Science Center, Anchorage, AK and Seth Snedigar, Fairbanks, AK
  254801 (Theme Sessions)