GSA Connects 2021 in Portland, Oregon

Session No. 232
Wednesday, 13 October 2021: 1:30 PM-5:30 PM
A106 (Oregon Convention Center)

T24. The Life and Times of Arc Volcanoes from Bottom to Top II

GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Geochemical Society

 

Anita Grunder, Thomas Sisson and Kellie Wall, Advocates
Paper #
Start Time
 
1:30 PM
Introductory Remarks
1:35 PM
ERUPTIVE HISTORY AND MAGMATIC EVOLUTION PROCESSES OF LONG-LIVED AKUTAN VOLCANO, EASTERN ALEUTIAN ISLANDS
COOMBS, Michelle, USGS, Alaska Volcano Observatory, 4230 University Drive Ste 100, Anchorage, AK 99501 and JICHA, Brian, Dept of Geoscience, Dept of Geoscience, 1215 W Dayton St, Madison, WI 53706
1:50 PM
COMPOSITIONAL PROGRESSION FROM BASALT-ONLY TO BASALT+ANDESITE+DACITE DURING THE 300 KA ERUPTIVE HISTORY OF MT. VENIAMINOF, ALASKA (Invited Presentation)
CALVERT, Andrew, BACON, Charles and SISSON, Thomas, USGS, Volcano Science Center, 345 Middlefield Road, Menlo Park, CA 94025-0000
2:10 PM
MOBILE, “DRY” DACITES BY SHALLOW, GABBROIC DIFFERENTIATION OF ARC BASALTS AT MOUNT VENIAMINOF VOLCANO, ALASKA PENINSULA
SISSON, Thomas1, BACON, Charles1, CALVERT, Andrew1 and SALTERS, Vincent2, (1)USGS, Volcano Science Center, 345 Middlefield Road, Menlo Park, CA 94025-0000, (2)Earth, Ocean and Atmospheric Sciences, Florida State Univ., Tallahassee, FL 32306-2545
232-4
2:25 PM
Withdrawn
2:40 PM
DOES THE ARRIVAL OF RECHARGE MAGMA CONTROL THE TIMING OF VOLCANIC ERUPTIONS? EVIDENCE FOR POST-RECHARGE COOLING IN MINERAL THERMAL PROFILES FROM BROKEOFF VOLCANO, LASSEN VOLCANIC CENTER, CALIFORNIA
PLATT, Bryant, California Department of Water Resources, South Central Regional Office, Fresno, CA 93711 and PUTIRKA, Keith, Department of Earth and Environmental Sciences, California State University - Fresno, 2345 E. San Ramon Ave, MS/MH24, Fresno, CA 93720
3:15 PM
COMPARATIVE GEOCHEMICAL ANALYSIS OF RECENT VOLCANIC FLOWS ON BARVA VOLCANO, COSTA RICA
COULOMBE, Julie and MCCANTA, Molly C., Earth and Planetary Sciences, University of Tennessee, 1621 Cumberland Ave, Knoxville, TN 37996
 
3:30 PM
Break
3:40 PM
THE VOLCANIC EXPLOSIVE-EFFUSIVE TRANSITION: INSIGHTS FROM A CRYSTALLINITY-BASED PERMEABILITY MODEL
HERBST, Thomas, Department of Geological Sciences, University of Missouri, Office 101 Geological Sciences, Columbia, MO 65211-0001, WHITTINGTON, Alan, Department of Geological Sciences, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, PISTONE, Mattia, Department of Geology, University of Georgia, Athens, GA 30602, SCHIFFBAUER, James D., Geological Sciences, University of Missouri, 101 Geological Sciences Bldg, Columbia, MO 65211 and SELLY, Tara, Department of Geological Sciences, University of Missouri, 101 Geological Sciences Building, Columbia, MO 65211
3:55 PM
INVESTIGATING THE EVOLUTION OF MAGMA PROPERTIES DURING DIKE PROPAGATION AT SUMMER COON VOLCANO, CO
AKSIT, Gui1, TOWNSEND, Meredith1 and HARP, Andrew2, (1)Department of Earth Sciences, University of Oregon, Eugene, OR 97403, (2)Department of Geological and Environmental Sciences, California State University, Chico, Chico, CA 95929
4:10 PM
OBJECTIVE LINKING OF DIKE SEGMENTS TO EVALUATE MESOSCALE STRUCTURE OF DIKE SWARMS
KUBO HUTCHISON, Allison1, KARLSTROM, Leif2, MITTAL, Tushar3 and HARPER, Chris2, (1)Department of Earth Sciences, University of Oregon, 100 Cascade Hall, 1272 University of Oregon, Eugene, OR 97403; University of Oregon, Department of Earth Sciences, 100 Cascade Hall, 1272 University of Oregon, Eugene, OR 97403, (2)Department of Earth Sciences, University of Oregon, 100 Cascade Hall, 1272 University of Oregon, Eugene, OR 97403, (3)Massachusetts Institute of Technology, Earth, Atmosph, Planet Sci Dept, 54-1010 MIT, Cambridge, OR 01890
4:25 PM
AN EMPLACMENT MODEL FOR LOW-VOLUME INTRUSIONS BASED ON THE SHONKIN SAG LACCOLITH, MONTANA
RUGGLES, Claire, Department of Geoscience, University of Wisconsin - Madison, Madison, WI 53706, MORGAN, Sven, Department of Natural Sciences, University of Michigan-Dearborn, 130 SFC, 4901 Evergreen Rd, Dearborn, MI 48128 and REBER, Jacqueline E., Department of Geological and Atmospheric Sciences, Iowa State University, Ames, IA 50011
4:40 PM
TRACING DEHYDRATION OF THE SUBDUCTED SLAB WITH TUNGSTEN ISOTOPES IN ARC LAVAS
MAZZA, Sarah, Department of Geosciences, Smith College, Northampton, MA 01063, STRACKE, Andreas, Institut für Mineralogie, University of Münster, Münster, 48149, Germany, GILL, James B., Department of Earth and Planetary Sciences, University of California Santa Cruz, Santa Cruz, CA 95064 and KLEINE, Thorsten, Institut für Planetologie, University of Münster, Münster, 48149, Germany
4:55 PM
CARBON and OXYGEN ISOTOPE COMPOSITION OF MANTLE CARBONATES FROM THE NAVAJO VOLCANIC FIELD (COLORADO PLATEAU, USA)
GUILD, Meghan and BARNES, Jaime D., Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712
5:10 PM
INTEGRATING PETROLOGIC AND GEOPHYSICAL PERSPECTIVES ON THE RHYOLITIC MAGMA RESERVOIR AT LAGUNA DEL MAULE, CHILE (Invited Presentation)
ANDERSEN, Nathan, U.S. Geological Survey, Cascades Volcano Observatory, 1300 SE CARDINAL COURT, VANCOUVER, WA 98683
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