2009 Portland GSA Annual Meeting (18-21 October 2009)

Session No. 41
Sunday, 18 October 2009: 9:00 AM-6:00 PM
Hall A (Oregon Convention Center)

T65. Supervolcanoes, Ignimbrite Flare-ups, and Their Impacts: Definition, Debate, and New Developments (Posters)

Authors will be present from 4 to 6 PM.

 

Paper #
Booth #
1
349
VARIABLE SOURCE ROCKS FOR LOW OXYGEN ISOTOPE RHYOLITES OF THE EASTERN UPPER BASIN MEMBER OF THE PLATEAU RHYOLITES, YELLOWSTONE CALDERA, WY
PRITCHARD, Chad J., School of Earth and Environmental Sciences, Washington State University, PO Box 642812, Washington State University, Pullman, WA 99164-2812, LARSON, Peter A., School of Earth and Environmental Science, Washington State University, PO Box 642812, Washington State University, Pullman, WA 99164-2812 and HART, Garret, School of Earth & Environmental Sciences, Washington State University, P.O. Box 642812, Pullman, WA 99164-2812, cpritchard@wsu.edu, cpritchard@wsu.edu
2
350
OXYGEN ISOTOPE STUDY OF ARCHEAN XENOLITHS CONSTRAINS THE SOURCE OF SUPERVOLCANIC RHYOLITES IN THE SNAKE RIVER PLAIN-YELLOWSTONE PLATEAU VOLCANIC PROVINCE
WATTS, Kathryn E., Department of Geological Sciences, 1272 University of Oregon, Eugene, OR 97403, LEEMAN, William P., Earth Science Division, National Science Foundation, 4201 Wilson Blvd, Arlington, VA 22230, BINDEMAN, Ilya N., Geological Sciences, 1272 University of Oregon, Eugene, OR 97403 and LARSON, Peter, Department of Geology, Washington State University, Pullman, WA 99164, kwatts@uoregon.edu, kwatts@uoregon.edu
3
351
PETROLOGIC AND ISOTOPIC INVESTIGATION OF RHYOLITES FROM KARYMSHINA CALDERA, THE LARGEST “SUPER”CALDERA IN KAMCHATKA, RUSSIA
SHIPLEY, Niccole, Department of Geological Sciences, University of Oregon, Eugene, OR 97403, BINDEMAN, Ilya, Geological Sciences, University of Oregon, Eugene, OR 97403 and LEONOV, Vladimir, Institute of Volcanology and Seismology, Piip Blvd 9, Petropavlovsk, 683006, Russia, niccole@uoregon.edu, niccole@uoregon.edu
4
352
HUAUTLA VOLCANIC FIELD: A TRANSITION ZONE OF THE IGNIMBRITE FLARE-UP IN THE NORTH CENTRAL REGION OF THE SIERRA MADRE DEL SUR
GONZALEZ, Enrique1, MORAN, Dante1, MORI, Laura1, ROBERGE, Julie2 and MARTINY, Barbara M.1, (1)Instituto de Geología, UNAM, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, México, D.F, 04510, Mexico, (2)Instituto de Geología, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, México, D.F, 04510, Mexico, eagtgaia@geologia.unam.mx, eagtgaia@geologia.unam.mx
5
353
THE EXHUMED GOLETA CALDERA IN SOUTHERN MEXICO: RECORD OF VOLUMINOUS EOCENE IGNIMBRITIC VOLCANISM FED BY WIDE PYROCLASTIC DIKE COMPLEXES
MORÁN ZENTENO, Dante J., Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria Delegación Coyoacán, Mexico D.F, 04510, Mexico and DÍAZ BRAVO, Beatriz A., Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria delegación Coyoacán, Mexico D.F, 04510, Mexico, dantez@servidor.unam.mx, dantez@servidor.unam.mx
6
354
A RE-APPRAISAL OF THE STRATIGRAPHY AND VOLCANOLOGY OF THE CERRO GALÀN VOLCANIC SYSTEM, NW ARGENTINA
FOLKES, Chris B.1, DE SILVA, Shan2, WRIGHT, Heather M.3, CAS, Raymond A.F.1, LESTI, Chiara4 and VIRAMONTE, Jose G.5, (1)Department of Geosciences, Monash University, Building 28, Melbourne, 3800, Australia, (2)Department of Geosciences, Oregon State University, Wilkinson Hall 104, Corvallis, OR 97331, (3)USGS, Vancouver, WA 98683, (4)Universita Roma Tre, Largo S. Leonardo Murialdo, Roma, 1-00146, Italy, (5)Instituto GEONORTE and CONICET, Universidad Nacional de Salta, Av. Bolivia 5150, Salta, 4400, Argentina, desilvas@geo.oregonstate.edu, desilvas@geo.oregonstate.edu
7
355
TWO NEW SUPERERUPTIONS IN THE ALTIPLANO-PUNA VOLCANIC COMPLEX OF THE CENTRAL ANDES
ORT, Michael H., Seses, Northern Arizona University, Box 4099, Flagstaff, AZ 86011, DE SILVA, Shanaka, College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, 104 CEOAS Admin. Bldg, Corvallis, OR 97331, JIMENEZ, Nestor, Facultad de Geologia, Universidad Mayor de San Andres, La Paz, Bolivia, SALISBURY, Morgan, Department of Geosciences, Oregon State University, Wilkinson Hall 104, Corvallis, OR 97331, JICHA, Brian R., Geoscience, University of Wisconsin-Madison and SINGER, Brad S., Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53076, michael.ort@nau.edu, michael.ort@nau.edu
8
356
THE SOLDIER MEADOW TUFF OF THE HIGH ROCK CALDERA, NORTHWESTERN NEVADA
SMITH, Julie A., Geology, California State University, Sacramento, 6000 J Street, Sacramento, CA 95819-6043, HAUSBACK, Brian P., Geology, California State University, Sacramento, 6000 J Street, Sacramento, CA 958l9-6043, HENRY, Christopher D., Nevada Bureau of Mines and Geology, University of Nevada, Reno, NV 89557, NOBLE, Donald C., 3450 Rolling Ridge Road, Reno, NV 89506 and HILTON, Richard P., Earth Science, Sierra College, 5000 Rocklin Road, Rocklin, CA 95677, js3684@saclink.csus.edu, js3684@saclink.csus.edu
9
357
SUPERERUPTION OF PEACH SPRING TUFF: NEW INSIGHTS FROM CALDERA-FILL AND OUTFLOW PUMICE AND ACCESSORY MINERALS
CARLEY, Tamara L.1, MILLER, Calvin2, FERGUSON, Charles A.3, GUALDA, Guilherme A.R.2, PAMUKCU, Ayla S.2, WOODEN, Joe L.4, MILLER, Jonathan5, GAUDIO, Sarah J.6 and VARGA, Robert J.7, (1)Dept. of Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, (2)Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, (3)Arizona Geological Survey, 416 West Congress, Suite 100, Tucson, AZ 85719, (4)USGS-Stanford Ion Microprobe Laboratory, Stanford University, Stanford, CA 94305, (5)Department of Geology, San Jose State Univ, San Jose, CA 95192-0102, (6)Geology Department, University of California, Davis, One Shields Avenue, Davis, CA 95616, (7)Geology Department, Pomona College, Claremont, CA 91711, tamara.l.carley@vanderbilt.edu, tamara.l.carley@vanderbilt.edu
10
358
THE GREAT TIANCHI ERUPTION AND ITS PRE-ERUPTION HISTORY AND CONDITIONS
ZOU, Haibo, Department of Geosciences, Auburn University, 210 Petrie Hall, Auburn, AL 36849 and FAN, Qicheng, Institute of Geology, Chinese Earthquake Administration, Beijing, 100029, China, haibo.zou@auburn.edu, haibo.zou@auburn.edu
11
359
CHANGES IN RHYOLITE COMPOSITION OVER THE LAST 60,000 YEARS AT THE OKATAINA CALDERA COMPLEX, NEW ZEALAND RECORDED IN ZIRCON TRACE ELEMENT ZONATION
KLEMETTI, Erik W., Geosciences, Denison University, 100 W. College St, Granville, OH 43023, COOPER, Kari M., Geology, UC Davis, 1 Shields Ave, Davis, CA 95616 and DEERING, Chad D., Earth and Space Sciences, University of Washington, Seattle, WA 98195, klemettie@denison.edu, klemettie@denison.edu
12
360
A REVIEW OF THE TECTONIC SETTING AND CHARACTERISTICS OF QUATERNARY SILICIC CALDERAS
HUGHES, Gwyneth R., Department of Geological & Environmental Sciences, Stanford University, Building 320, 450 Serra Mall, Stanford, CA 94305-2115 and MAHOOD, Gail A., Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, gwyneth@stanford.edu, gwyneth@stanford.edu
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