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2007 GSA Denver Annual Meeting (28–31 October 2007)

Session No. 168
Tuesday, 30 October 2007: 1:30 PM-5:30 PM

T109. Mélanges: Processes of Formation and Societal Significance

GSA International Section; GSA Structural Geology and Tectonics Division; GSA Engineering Geology Division; GSA Sedimentary Geology Division

 

John Wakabayashi and Yildirim Dilek, Advocates
Paper #
Start Time
1
1:30 PM
INTERACTION OF TECTONIC, SEDIMENTARY AND DIAPIRIC PROCESSES IN THE ORIGIN OF MÉLANGES: EXAMPLES FROM THE MESSINIAN OF THE TERTIARY PIEDMONT BASIN (NW ITALY)
DELA PIERRE, Francesco, Department of Earth Sciences, University of Torino, Via Valperga Caluso 35, Torino, 10125, Italy and FESTA, Andrea, Dipartimento Scienze della Terra, Università di Torino, Via Valperga Caluso 35, Torino, 10125, Italy, francesco.delapierre@unito.it, francesco.delapierre@unito.it
2
1:50 PM
MELANGE AT CONVERGENT PLATE MARGINS: THE FRANCISCAN COMPLEX OF CALIFORNIA
CLOOS, Mark, Department of Geological Sciences, University of Texas at Austin, Jackson School of Geosciences 1 University Station C9000, Austin, TX 78712, cloos@mail.utexas.edu, cloos@mail.utexas.edu
3
2:10 PM
DEFORMATION PATTERNS & EXHUMATION PROCESSES IN CONVERGENT MARGIN ACCRETIONARY MÉLANGES: CRETACEOUS FRANCISCAN (USA) AND TERTIARY MINEOKA (JAPAN) COMPLEXES
MORI, Ryota, MC Exploration Co. Ltd, 2-3-1 Marunouchi, Tokyo, 100-8086, Japan, OGAWA, Yujiro, Earth Evolution Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Japan and DILEK, Yildirim, Geology, Miami University, 116 Shideler Hall, Oxford, OH 45056, fyogawa45@yahoo.co.jp, fyogawa45@yahoo.co.jp
4
2:25 PM
POSSIBILE CYCLIC POST-SEISMIC NORMAL FAULTING DURING OFF-SCRAPING IN ACCRETIONARY PRISM DEVELOPMENT: EXAMPLES FROM NANKAI AND BOSO COMPLEXES, JAPAN
KAWAMURA, Kiichiro, Research Group 3, Fukada Geological Institute, 2-13-12 Honkomagome, Bunkyo, Tokyo, 113-0021, Japan, BURMEISTER, Kurtis C., Dept. of Geosciences, Univ. of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, OGAWA, Yujiro, Earth Evolution Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Japan and DILEK, Yildirim, Geology, Miami University, 116 Shideler Hall, Oxford, OH 45056, kichiro@fgi.or.jp, kichiro@fgi.or.jp
5
2:40 PM
MÉLANGE TYPES AND FORMATION IN CONTRASTING SETTINGS ASSOCIATED WITH CONVERGENT MARGIN TECTONICS
WAKABAYASHI, John, 2027 E. Lester Ave, Fresno, CA 93720-3963 and DILEK, Yildirim, Geology, Miami University, 116 Shideler Hall, Oxford, OH 45056, johnwako@sbcglobal.net, johnwako@sbcglobal.net
6
2:55 PM
HISTORY OF A MULTIPLY METAMORPHOSED QUARTZ DIORITE EXOTIC BLOCK AND ITS MELANGE MATRIX IN THE FRANCISCAN COMPLEX AT CAZADERO, CA, DESCRIBING THREE CYCLES OF BLOCK HEATING AND COOLING WITH BRECCIATION, EXHUMATION, AND REBURIAL, AND DESCRIBING THE MELANGE MATRIX
ERICKSON, Rolfe C., Geology, Sonoma State Univ, 1801 E. Cotati Avenue, Rohnert Park, CA 94928, rolfe.erickson@sonoma.edu, rolfe.erickson@sonoma.edu
7
3:10 PM
MELANGES – SO WHAT? WHO CARES? – A GEOENGINEER'S PERSPECTIVE
MEDLEY, Edmund W., Geosyntec Consultants, 475 14th Street, Suite 400, Oakland, CA 94612, emedley@geosyntec.com, emedley@geosyntec.com
8
3:25 PM
INTERNAL STRUCTURE OF THE SAN ANDREAS FAULT ZONE AT THE A.R. WILSON QUARRY, AROMAS, CALIFORNIA, AS INFERRED FROM 3-D DIGITAL OUTCROP MODELING
HANEBERG, William C., Haneberg Geoscience, 10208 39th Avenue SW, Seattle, WA 98146 and MEDLEY, Edmund W., Geosyntec Consultants, 475 14th Street, Suite 400, Oakland, CA 94612, bill@haneberg.com, bill@haneberg.com
 
3:40 PM
Break
9
3:55 PM
SUPRA-SUBDUCTION AND ABYSSAL MANTLE PERIDOTITES IN SERPENTINITE MELANGE, COAST RANGE OPHIOLITE, CALIFORNIA: IMPLICATIONS FOR MELANGE FORMATION
CHOI, Sung Hi, Dept of Earth and Environmental Sciences, Chungnam National University, Daejeon, 305-764, South Korea, SHERVAIS, John W., Geology Dept, Utah State Univ, Logan, UT 84322-4505 and MUKASA, Samuel B., College of Engineering and Physical Sciences, University of New Hampshire, Durham, NH 03824, chois@cnu.ac.kr, chois@cnu.ac.kr
10
4:10 PM
SHRIMP-BASED DEPOSITIONAL AGES OF FRANCISCAN COMPLEX METAGRAYWACKES, SAN FRANCISCO BAY AREA, WESTERN CALIFORNIA
SNOW, Cameron A., Exploration and Production Technology, Apache Corporation, 2000 Post oak Blvd, suite 100, houston, TX 77006, WAKABAYASHI, John, 2027 E. Lester Ave, Fresno, CA 93720-3963 and ERNST, W.G., Department of Geological & Environmental Sciences, Stanford University, Building 320, Stanford, CA 94305-2115, cameron.snow@gmail.com, cameron.snow@gmail.com
11
4:25 PM
COLLISIONAL MELANGE PROCESSES WITH SPECIAL REFERENCE TO INDONESIA AND CLOSURE OF THE TETHYS
HARRIS, Ron, Geological Sciences, Brigham Young University, Provo, UT 84602, rharris@byu.edu, rharris@byu.edu
12
4:45 PM
THE ANKARA MELANGE, TURKEY: TECTONIC IMPLICATIONS FOR CLOSURE OF THE NEO-TETHYS
DANGERFIELD, Anne1, DILEK, Yildirim2, HARRIS, Ron3, SARIFAKIOGLU, Ender4 and ESIRTGEN, Esra4, (1)Geological Sciences, Brigham Young University, S387 ESC, Provo, UT 84602, (2)Geology, Miami University, 116 Shideler Hall, Oxford, OH 45056, (3)Geological Sciences, Tectonic Processes Collaborative, Brigham Young Univeristy, Provo, UT 84602, (4)Maden Tetkik Arama, Department of Geology, General Directorate of Mineral Research and Exploration, 06520, Ankara, Turkey, anne.dangerfield@gmail.com, anne.dangerfield@gmail.com
13
5:00 PM
STRUCTURE AND TECTONICS OF SUBOPHIOLITIC MÉLANGES IN THE WESTERN HELLENIDES (GREECE) AND IMPLICATIONS FOR OPHIOLITE EMPLACEMENT TECTONICS
GHIKAS, Constandina, Geology, Miami University, 114 Shideler Hall, Oxford, OH 45056, DILEK, Yildirim, Geology, Miami University, 116 Shideler Hall, Oxford, OH 45056 and RASSIOS, Annie E., Institute of Geology & Mineral Exploration, Lefkovrisi, 50100, Greece, notconstandina@hotmail.com, notconstandina@hotmail.com
14
5:15 PM
GEOLOGY AND GEOCHRONOLOGY OF MÉLANGES FROM THE CYCLADIC BLUESCHIST BELT, GREECE
BRÖCKER, Michael1, BULLE, Florian2 and GÄRTNER, Claudia2, (1)Institut für Mineralogie, Universität Münster, Corrensstrasse 24, Münster, 48149, Germany, (2)Institut für Mineralogie, Zentrallaboratorium für Geochronologie, Universität Münster, Corrensstrasse 24, Münster, D-48149, Germany, brocker@uni-muenster.de, brocker@uni-muenster.de
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