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

Session No. 152
Tuesday, 20 October 2009: 8:00 AM-12:00 PM
B110/111/112 (Oregon Convention Center)

T56. The Franciscan Assemblage and Tectonostratigraphic Terranes of the Western United States I: A Tribute to M.C. Blake Jr.

GSA Structural Geology and Tectonics Division; GSA Cordilleran Section; Friends of the Franciscan

 

John Shervais and A.S. Jayko, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
1
8:05 AM
APPLYING THE FRANCISCAN MODEL TO A NON-COLLISIONAL ALPINE SEGMENT IN THE CALABRIAN ARC OF SOUTHERN ITALY
SHIMABUKURO, David H.1, WAKABAYASHI, John2, LIBERI, Francesca3, PILUSO, Eugenio3 and ALVAREZ, Walter1, (1)Department of Earth and Planetary Science, Univ of California, Berkeley, CA 94720-4767, (2)Department of Earth and Environmental Sciences, California State University, Fresno, CA 93740, (3)Dipartmento di Scienza della Terra, Università della Calabria, Ponte P. Bucci, cubo 15b, Arcavacata di Rende, 87036, Italy, dhs@ocf.berkeley.edu, dhs@ocf.berkeley.edu
2
8:20 AM
INSIGHT INTO FRANCISCAN MéLANGE DEVELOPMENT FROM SEDIMENTARY BRECCIAS, FIELD RELATIONS, AND BLOCK TYPES
WAKABAYASHI, John, Department of Earth and Environmental Sciences, California State University, Fresno, CA 93740, jwakabayashi@csufresno.edu, jwakabayashi@csufresno.edu
3
8:35 AM
HIGH-P AMPHIBOLITE BLOCKS FROM MELANGE, NACIMIENTO BELT, COASTAL CALIFORNIA: A FIRST REPORT
LONG, Jared K., Earth and Environmental Sciences, California State University Fresno, Fresno, CA 93740 and WAKABAYASHI, John, 2027 E. Lester Ave, Fresno, CA 93720-3963, jaredlong@csufresno.edu, jaredlong@csufresno.edu
4
8:50 AM
REVISITING THE LONE SIERRA NEVADA ECLOGITE LOCALITY: WHAT IS IT?
LUCE, J.M., Earth and Environmental Sciences, California State University Fresno, 2576 East San Ramon Ave, Fresno, CA 93740 and WAKABAYASHI, John, 2027 E. Lester Ave, Fresno, CA 93720-3963, jluce@csufresno.edu, jluce@csufresno.edu
5
9:05 AM
HP/HT METAMORPHISM OF THE DEVIL'S GATE OPHIOLITE, SIERRA NEVADA, CALIFORNIA: WHERE IS THE UPPER PLATE?
ANNIS, David Charles, Geology, CSU Fresno, 4839 N. Bonadelle Ave. APT# 102, Fresno, CA 93726 and WAKABAYASHI, John, 2027 E. Lester Ave, Fresno, CA 93720-3963, davidcharles@csufresno.edu, davidcharles@csufresno.edu
6
9:20 AM
FRANCISCAN SHEAR ZONES BETWEEN COAST RANGE OPHIOLITE AND GREAT VALLEY GROUP ROCKS: EVIDENCE OF MéLANGE DIAPIRISM?
HITZ, Brian, Earth and Environmental Sciences, California State University, Fresno, Fresno, CA 93740 and WAKABAYASHI, John, Department of Earth and Environmental Sciences, California State University, Fresno, CA 93740, hitzbd25@csufresno.edu, hitzbd25@csufresno.edu
 
9:35 AM
Break
7
9:50 AM
FRANCISCAN FORMATION WITHIN THE SAFOD BOREHOLE, NEAR PARKFIELD, CA
BRADBURY, Kelly Keighley, Department of Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322 and EVANS, James P., Dept. of Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322-4505, kellykbradbury@gmail.com, kellykbradbury@gmail.com
8
10:05 AM
RECORDS OF FOREARC DEVOLATILIZATION IN THE FRANCISCAN COMPLEX, CATALINA SCHIST, AND WESTERN BAJA TERRANE
BEBOUT, Gray E., Department of Earth and Environmental Sciences, Lehigh University, 1 West Packer Avenue, Bethlehem, PA 18015 and SADOFSKY, Seth J., Oregon Department of Environmental Quality, 1102 Lincoln St, Suite 210, Eugene, OR 97401, geb0@lehigh.edu, geb0@lehigh.edu
9
10:20 AM
TIME-VARYING ACCRETION, NONACCRETION, AND HIGH-PRESSURE METAMORPHISM IN THE FRANCISCAN SUBDUCTION COMPLEX, FROM THE INITIATION OF SUBDUCTION UNTIL CA. 80 MA
DUMITRU, Trevor A., Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305-2115, WAKABAYASHI, John, 2027 E. Lester Ave, Fresno, CA 93720-3963 and WRIGHT, James E., Department of Geology, University of Georgia, Athens, GA 30602, tdumitru@stanford.edu, tdumitru@stanford.edu
10
10:40 AM
MULTIPLE EPISODES OF TECTONIC EROSION AND ACCRETION IN THE MCHUGH COMPLEX, CHUGACH TERRANE, SOUTHERN ALASKA, BASED ON DETRITAL ZIRCON AGES
AMATO, Jeffrey M.1, PAVLIS, Terry2, CLIFT, Peter D.3, DAY, Erik M.4 and WORTHMAN, Caleb1, (1)Department of Geological Sciences, New Mexico State University, MSC 3AB, PO Box 30001, Las Cruces, NM 88003, (2)Geological Sciences, University of Texas at El Paso, El Paso, TX 79968, (3)Department of Geology and Geophysics, Louisiana State University, E235 Howe-Russell-Kniffen Geoscience Complex, Baton Rouge, LA 70803, (4)Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79968-0555, amato@nmsu.edu, amato@nmsu.edu
11
10:55 AM
MULTI-STAGE EXHUMATION OF AN ECLOGITE/BLUESCHIST IN THE COASTAL RANGE OF CHILE: A COMPARISON TO FRANCISCAN TECTONIC BLOCKS
KATO, Terence T., Department of Geological and Environmental Sciences, California State Univ, Chico, CA 95929-0205, SHARP, Warren D., Berkeley Geochronology Center, Berkeley, CA 94709 and GODOY, Estanislao, V. Subercaseaux, Pirque, 4100, Chile, tkato@csuchico.edu, tkato@csuchico.edu
12
11:10 AM
UNROOFING FRANCISCAN BLUESCHISTS
JAYKO, A.S., Earth Surface Processes Team, U.S. Geological Survey, 3000 East Line St, Bishop, CA 93514 and BLAKE Jr, M. Clark, Emeritus, U. S. Geological Survey, 345 Middlefield Road, Menlo Park, CA 94025, ajayko@usgs.gov, ajayko@usgs.gov
 
11:25 AM
Discussion
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