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2003 Seattle Annual Meeting (November 2–5, 2003)

Session No. 55
Sunday, 2 November 2003: 1:00 PM-3:45 PM

T144. Tectonics of the Circum-Pacific Rim in Space and Time: Focus on Alaska, Central and South America, and the Western Pacific

GSA International Section; U.S. National Committee on the Geological Sciences; Circum-Pacific Council; GSA Structural Geology and Tectonics Division

 

Suzanne Mahlburg Kay and Mark Cloos, Advocates
Paper #
Start Time
 
1:00 PM
Introductory Remarks
1
1:05 PM
EVIDENCE FOR, AND AMOUNTS OF, CONTINENTAL CRUSTAL MATERIAL RECYCLED TO THE MANTLE AT CENOZOIC SUBDUCTION ZONES
SCHOLL, David W., Geophysics, Stanford Univ, Stanford, CA 94305 and VON HUENE, Roland, Geology, Univ of California Davis, Department of Geology, University of California, Davis, CA 95616, dscholl@pangea.stanford.edu, dscholl@pangea.stanford.edu
2
1:25 PM
ACCRETION AND EROSION AT CONVERGENT MARGINS, CURRENT CONCEPTUAL MODELS AND PRESENT OBSERVATIONS
VON HUENE, Roland, Geology, Univ of California Davis, Department of Geology, University of California, Davis, CA 95616 and SCHOLL, David W., Geophysics, Stanford Univ, Stanford, CA 94305, rhuene@mindsprings.com, rhuene@mindsprings.com
3
1:45 PM
EPISODIC MAGMATIC FRONT MIGRATION AND MOUNTAIN BUILDING PROCESSES IN THE CENTRAL ANDES OF NORTHERN CHILE: THE LAST 180 MA
MPODOZIS, Constantino, Sipetrol S.A, Vitacura 2736, Santiago, Chile, cmpodozis@sipetrol.cl, cmpodozis@sipetrol.cl
4
2:00 PM
PARALLELS IN LOSS OF CRUSTAL WIDTH BY FOREARC SUBDUCTION EROSION AND CRUSTAL SHORTENING ALONG THE SOUTH CENTRAL ANDEAN MARGIN
KAY, Suzanne Mahlburg, Geological Sciences, Cornell Univ, Snee Hall, Ithaca, NY 14853-1504, smk16@cornell.edu, smk16@cornell.edu
 
2:15 PM
Break
5
2:30 PM
Withdrawn
6
2:45 PM
HIGH-GRADE METAMORPHIC CORE OF AN EOCENE ARC-CONTINENT COLLISION ZONE, SREDINNIY RANGE, KAMCHATKA
HOURIGAN, Jeremy K.1, BRANDON, Mark T.1, SOLOVIEV, Alexei V.2 and KIRMASOV, Alexei B.3, (1)Dept. of Geology and Geophysics, Yale Univ, P.O. Box 208109, New Haven, CT 06520-8109, (2)Institute of the Lithosphere of the Marginal Seas, Russian Academy of Sciences, Staromonetny per., 22, Moscow, 119180, Russia, (3)Geological Department, Moscow State Univ, Vorob’evy Gory, Moscow, 119992, Russia, jeremy.hourigan@yale.edu, jeremy.hourigan@yale.edu
7
3:00 PM
OPHIOLITE FACTORY OF THE INDONESIAN AND NEW GUINEA REGION: HOW IT WORKS AND HOW IT MAY HAVE OPERATED IN THE CORDILLERA AND TETHYS
HARRIS, Ron A., Geology Department, Brigham Young Univ, S-349 ESC, Provo, UT 84602-4606, rharris@byu.edu, rharris@byu.edu
8
3:15 PM
FATE OF BASALTIC UNDERPLATE IN NORTH AND SOUTH CHILE
HASCHKE, Michael1, ECHTLER, Helmut2 and ONCKEN, Onno2, (1)GFZ Potsdam, Telegrafenberg C 220, Potsdam, 14473, Germany, (2)GFZ Potsdam, Telegrafenberg, Potsdam, 14473, Germany, mrh@gfz-potsdam.de, mrh@gfz-potsdam.de
9
3:30 PM
OROGENIC WELTS, DELAMINATION, AND NON-STEADY-STATE EMPLACEMENT OF LARGE-VOLUME CONTINENTAL MARGIN BATHOLITHS: EXAMPLES FROM PERU, CALIFORNIA, AND NEW ZEALAND
KIMBROUGH, D.L., San Diego State Univ, San Diego, CA 92182-1020, TULLOCH, A.J., Institute of Geological and Nuclear Sciences, Dunedin, New Zealand, GROVE, M., Univ of California, Los Angeles, CA 90095 and MCNULTY, B., California State University, Dominguez Hills, CA, dkimbrough@geology.sdsu.edu, dkimbrough@geology.sdsu.edu
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