Backbone of the Americas—Patagonia to Alaska, (3–7 April 2006)
Session No. 5 Monday, 3 April 2006
10:35 AM-7:45 PM, Congress & Exhibition Center: Foyer and Auditorio Bustelo

T5. Processes, Comparisons and Other Cordilleran Issues I: Seismicity, General Tectonic Processes, and Specific Examples

 Paper #Booth #
5-187FORE-ARC DEFORMATION IN RESPONSE TO SLAB-PULL AND UPPER PLATE CONVERGENCE: NUMERICAL MODELS: GERBAULT, Muriel Sr, Geology, I.R.D, University of Chile, Plaza Ercilla #803, Santiago 13518 Chile, gerbault@lmtg.obs-mip.fr
5-288IS MUCH OF WHERE GIANT TRENCH EARTHQUAKES OCCUR SIMPLY A SAMPLING BIAS?: SWAFFORD, Laura1, STEIN, Seth1, and OKAL, Emile A.2, (1) Department of Geological Science, Northwestern University, 1850 Campus Drive, Evanston, IL 60208-2150, swafford@earth.northwestern.edu, (2) Geology, Northwestern Univ, Evanston, IL 60202
5-389A COMPOSITE VIEW OF MAGMA ORGANIZATION AND EMPLACEMENT MECHANISMS FROM THE UPPER CRUST OF ARGENTINA AND THE MIDDLE CRUST OF NORWAY: ANDERSON, Heather S.1, YOSHINOBU, Aaron S.2, and MARKO, Wayne T.2, (1) Geosciences, Texas Tech University, Dept. of Geosciences, Texas Tech University, Lubbock, TX 79409, hs.anderson@ttu.edu, (2) Dept. of Geosciences, Texas Tech Univ, Lubbock, TX 79409-1053
5-490DO STRATIGRAPHIC SEQUENCES IN FORELAND BASIN DEPOSITS IMPLY MOUNTAIN BUILDING EPISODES?: RAYNOLDS, Robert G.1, DECHESNE, Marieke1, and KILLEEN, Timothy J.2, (1) Denver Museum of Nature & Science, 2001 Colorado Boulevard, Denver, CO 80205-5798, denverbasin@dmns.org, (2) Museo Noel Kempff Mercado, Santa Cruz, Bolivia
5-591CONTINENTAL BASIN DEVELOPMENT IN A SUBDUCTION SETTING, NE SOUTH ISLAND, NEW ZEALAND: SEN, Pragnyadipta1, HUBBARD, Mary1, PETTINGA, Jarg2, and OVIATT, Jack1, (1) Geology, Kansas State University, 108 Thompson Hall, Department of Geology, Kansas State University, Manhattan, KS 66506, psen@ksu.edu, (2) Department of Geological Sciences, Univ of Canterbury, Private Bag 4800, Christchurch, New Zealand
5-692SPATIAL VARIATION OF SEISMIC B-VALUES BENEATH MAKUSHIN VOLCANO, UNALASKA ISLAND, ALASKA: BRIDGES, David L. and GAO, Stephen S., Department of Geology, Kansas State University, 108 Thompson Hall, Manhattan, KS 66506, dbridges@ksu.edu
5-793THE 2002 DENALI EARTHQUAKE: INSIGHT INTO SLIP-PARTITIONING AND GROWTH OF THE ALASKA RANGE: TAYLOR, Michael1, LEPRINCE, Sebastien2, and AVOUAC, Jean-Philippe2, (1) Department of Geology, University of Kansas, 120-Lindley Hall, Lawrence, KS 66045, mht@ku.edu, (2) Geological and Planetary Sciences, California Institute of Technology, 1200 E. California Blvd, Pasadena, CA 91125
5-894NEW CONTRAINTS ON THE TECTONICS OF THE OCEAN BASIN INBOARD OF THE WRANGELLIA COMPOSITE TERRANE, SOUTH-CENTRAL ALASKA: BIER, Sara1, GILMAN, Tony2, and FISHER, Donald2, (1) Geology Department, Washington and Lee University, Science Addition, Lexington, VA 24450, biers@wlu.edu, (2) Department of Geosciences, The Pennsylvania State University, Deike Building, University Park, PA 16802
5-995STRUCTURAL VARIATIONS IN CORDILLERAN LITHOSPHERE FROM DEEP SEISMIC REFLECTION PROFILING: BROWN, Larry D., INSTOC, Cornell Univ, Department of Earth and Atmospheric Sciences, Snee Hall, Cornell University, Ithaca, NY 14853, brown@geology.cornell.edu
5-1096MAGMATIC INCLUSIONS IN THE MT. HELEN DOME, LASSEN VOLCANIC CENTER, SOUTHERNMOST CASCADES: CONSTRAINTS ON UPPER-CRUSTAL MAGMATIC AND ERUPTIVE PROCESSES: WILSON, Luke F., FEELEY, Todd C., and UNDERWOOD, Sandra, Department of Earth Sciences, Montana State University, Bozeman, MT 59717, wluke21@yahoo.com
5-1197THE TRUNCATION OF WESTERN NORTH AMERICA AND ITS CORRELATION TO ACTIVE, LARGE-SCALE, STRIKE-SLIP FAULTS: NEW OBSERVATIONS FROM THE KENNEDY MEADOWS PENDANT, KERN COUNTY, CALIFORNIA: BENNETT, Scott EK., Department of Geological Sciences, California State University Northridge, 18111 Nordhoff Street, Northridge, CA 91330-8266, earthman3@gmail.com
5-1298RECEIVER FUNCTION INVESTIGATION OF THE UPPER MANTLE TRANSITION ZONE BENEATH NORTHERN CALIFORNIA: BROWN, Shanna M., Geosciences, Texas Tech University, Box 41053, Dept Geoscience, Texas Tech, Lubbock, TX 79409, shanna.m.brown@ttu.edu and GURROLA, Harold, Geosciences, Texas Tech, Lubbock, TX 79409
5-1399100TH ANNIVERSARY OF THE 1906 SAN FRANCISCO EARTHQUAKE AS A FORUM FOR EDUCATING THE PUBLIC: IVERSEN, Eve Helene, 1953 22nd St, San Pablo, CA 94806, eveiversen@yahoo.com
5-14100FUTURE EARTHQUAKE PROBABILITY, HAZARD EXTENT, AND RISK ASSESMENT OF THE SAN FRANCISCO BAY REGION OF CALIFORNIA: EDELEN, Jeffrey Charles, Geological Sciences, University of Idaho, 1600 Harris Ct, Helena, MT 59601, jcedelen@gmail.com
5-15101TECTONIC EVOLUTION OF THE PACIFIC MARGIN AND THEIR INFLUENCE IN THE STRATIGRAPHY AND PALEOGEOGRAPHY OF EARLY MESOZOIC UNITS IN CENTRAL TO NORTHEASTERN MEXICO: BARBOZA GUDINO, Jose Rafael Sr1, BARAJAS NIGOCHE, Luis Daniel2, ZAVALA MONSIVAIS, Aurora2, and VENEGAS RODRIGUEZ, Gastón3, (1) Instituto de Geologia, Universidad Autonoma de San Luis Potosi, Manuel Nava No. 5, San Luis Potosi, 78240, Mexico, rbarboza@uaslp.mx, (2) Posgrado en geología aplicada, Universidad Autónoma de San Luis Potosí, San Luis Potosí, 78240, Mexico, (3) Posgrado en geología aplicada, Fac. Ingeniería / I. de Geología, UASLP, Manuel Nava 5, Zona Universitaria, San Luis Potosí, San Luis Potosí, 78240
5-16102EVIDENCE OF CO-MAGMATIC DEFORMATION IN THE CRETACEOUS ARC-RELATED SUCCESSIONS OF THE ZIHUATANEJO TERRANE, WESTERN PORTION OF THE GUERRERO COMPOSITE TERRANE, MEXICO: PRELIMINARY RESULTS: HERNÁNDEZ ORDÓÑEZ, Rodrigo1, CENTENO GARCÍA, Elena1, BUSBY, Cathy2, and BUSBY, Michael3, (1) Instituto de Geología, Universidad Nacional Autónoma de México, Avenida Universidad # 3000, Ciudad Universitaria, México, 04510, Mexico, roheor13@servidor.unam.mx, (2) Department of Geological Sciences, University of California, Santa Barbara, CA 93106-9630, Santa Barbara, CA 93106, (3) Santa Barbara Institute for Crustal Studies, University of California, 1140 Civvetz Hall Santa Barbara, CA, Santa Barbara, CA 93106
5-17103LATE CRETACEOUS NON-MARINE SEDIMENTATION IN THE CUTZAMALA BASIN, CENTRAL GUERRERO COMPOSITE TERRANE OF WESTERN MEXICO: TECTONIC IMPLICATIONS: CALLEJAS, Judith1, ALTAMIRA, Armando2, CENTENO, Elena3, HERNÁNDEZ, Enrique1, and TALAVERA, Oscar4, (1) Instituto de Geología, Universidad Nacional Autónoma de México, Av. Universidad 3000, Ciudad Universitaria, México, 04510, Mexico, judith_cm@yahoo.com, (2) Department of Geosciences, University of Houston, Houston-SR1, 4800 Calhoun Road, Houston, TX 77204-5503, (3) Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria, Del. Coyoacán, México, 04510, Mexico, (4) Escuela Regional de Ciencias de la Tierra, Universidad Autónoma de Guerrero, Taxco el Viejo Guerrero, Taxco, Mexico
5-18104GEOCHEMICAL CHARACTERISATION OF CHICXULUB-IMPACTEJECTA - NEW CONSTRAINS FROM THE GULF OF MEXICO AND THE CARIBBEAN: HARTING, Markus, Faculty of Geosciences, Department of Earthsciences, Budapestlaan, P.O. Box 80021, Utrecht 3508 TA Netherlands, m.harting@geo.uu.nl
5-19105GEOCHEMICAL HISTORY AND MAGMATIC PROCESSES OF THE TELICA VOLCANIC COMPLEX, NICARAGUAN VOLCANIC FRONT: OLNEY, Jessica L.1, WALKER, James A.1, PATINO, Lina C.2, and CARR, Michael J.3, (1) Geology and Environmental Geosciences, Northern Illinois University, 312 Davis Hall, DeKalb, IL 60115, yesik30@yahoo.com, (2) Earth Sciences Research, National Science Foundation, 4201 Wilson Blvd, Room 785S, Arlington, VA 22230, (3) Geological Sciences, Rutgers University, Piscataway, NJ 08854
5-20106LINKING AMERICAS BACKBONE: GEOLOGICAL DEVELOPMENT AND BASEMENT ROCKS OF CENTRAL PANAMA: WÖRNER, Gerhard, Geochemie, Goettingen University, Goldschmidtstr. 1, Goettingen, 37077, gwoerner@gwdg.de, HARMON, Russel S., Army Research Office, PO Box 12211, Research Triangle Park, Research Triangle Park, NC 27709, WEGNER, Wencke, Abt. Geochemie, GZG Universität Göttingen, Goldschmidtstr. 1, Göttingen, 37077, Germany, and SINGER, Bradley, Geology and Geophysics, U. of Wisconsin - Madison, 1215 W. Dayton St, Madison, WI 53706-1692
5-21107BOLIVAR & GEODINOS: INVESTIGATING ISLAND ARC ACCRETION ALONG THE SOUTHEASTERN CARIBBEAN PLATE BOUNDARY: LEVANDER, Alan, Department of Earth Science, Rice University, 6100 Main St, MS 126, Houston, TX 77005, alan@rice.edu, SCHMITZ, Michael, FUNVISIS, Final Calle Mara, Urb. El Llanito, Caracas 1070, 76880, Venezuela, and BOLIVAR & GEODINOS WORKING GROUPS, US and Venezuela, Houston and Caracas, 00000
5-22108CRUSTAL STRUCTURE ACROSS THE CARIBBEAN SOUTH AMERICA PLATE BOUNDARY AT 70°W: RESULTS OF THE BOLIVAR PROJECT: GUEDEZ, Maria C., ZELT, Colin A., MAGNANI, M. Beatrice, and LEVANDER, Alan, Department of Earth Science, Rice University, 6100 Main St, MS 126, Houston, TX 77005, mcguedez@rice.edu
5-23109SEISMIC STRUCTURE OF THE LEEWARD ANTILLES ARC AND GROWTH OF THE SOUTH AMERICAN CONTINENT: AROGUNMATI, Adeyemi1, LEVANDER, Alan2, and ZELT, Colin A.1, (1) Earth Science Department, Rice University, 6100 Main Street, MS 126, Houston, TX 77005, aadeyemi@rice.edu, (2) Department of Earth Science, Rice Univ, 6100 Main Street, MS 126, Houston, TX 77005
5-24110SPREADING-SUBSIDENCE AND OCEANIC PLATEAU ACCRETION DURING THE CRETACEOUS EVOLUTION OF WESTERN COLOMBIA: NIVIA, Álvaro Sr, Geological Survey, Colombian Institute of Geology and Mining - INGEOMINAS, Carrera 98 No. 16 - 00, Cali Colombia, anivia@ingeominas.gov.co
5-25111THE ROMERAL FAULTS, COLOMBIA: ANATOMY AND KINEMATICS OF A LATE MESOZOIC SUTURE: KAMMER, Andreas, Geocienicas, Universidad Nacional de Colombia, Cra 30 #45-02, Ed. Manuel Ancizar, Bogotá, akammer@unal.edu.co and VARGAS, Carlos Alberto, Geociencias, Universidad Nacional de Colombia, Cra 30 #45-02, Ed. Manuel Ancizar, Bogotá, Colombia
5-26112GEOCHEMISTRY OF JURASSIC VOLCANIC ROCKS OF THE NORTHERN ANDES: INSIGHTS FOR THE MESOZOIC EVOLUTION OF THE NORTHWESTERN CORNER OF THE SOUTH AMERICAN PLATE: VÁSQUEZ, Mónica, Institut für Geowissenschaften, Universität Potsdam, Postfach 601553, Potsdam, D-14415, Germany, monica@geo.uni-potsdam.de, BAYONA, Germán, Corporación Geológica ARES, Calle 57 No. 23-09 Of. 202, Bogotá, Colombia, and ROMER, Rolf L., GeoForschungsZentrum Potsdam, Telegrafenberg, Potsdam, 14473, Germany
5-27113MAGMA SOURCE DETERMINATION ON COLOMBIAN IGNEOUS ROCKS: VÁSQUEZ, Mónica1, WILKE, Max1, ALTENBERGER, Uwe1, RICKERS, Karen2, and FALKENBERG, Gerald2, (1) Institut für Geowissenschaften, Universität Potsdam, Postfach 601553, Potsdam, D-14415, Germany, monica@geo.uni-potsdam.de, (2) HASYLAB/DESY, Notkestrasse 85, Hamburg, D-22607
5-28114THE MIOCENE COLLISION OF THE PANAMA ARC WITH NORTHWESTERN SOUTH AMERICA: STRATIGRAPHIC EVIDENCE FROM THE BORBON BASIN, NORTHERN ECUADOR: DI CELMA, Claudio1, CANTALAMESSA, Gino1, RAGAINI, Luca2, VALLERI, Gigliola3, and LANDINI, Walter2, (1) Dipartimento di Scienze della Terra, Università di Camerino, Via Gentile III da Varano, Camerino, 62032, Italy, claudio.dicelma@unicam.it, (2) Dipartimento di Scienze della Terra, Università di Pisa, Via Santa Maria, Pisa, 56126, Italy, (3) Dipartimento di Scienze della Terra, Università di Firenze, Via La Pira 4, Firenze, 5512, Italy
5-29115MODE AND TIMING OF TERRANE ACCRETION IN THE FOREARC OF ECUADOR: VALLEJO, Cristian1, LUZIEUX, Leonard1, SPIKINGS, Richard2, WINKLER, Wilfried1, and HELLER, Friedrich3, (1) Geological Institute, ETH, Sonneggstrasse 5, Zürich, CH-8092, Switzerland, cristian.vallejo@erdw.ethz.ch, (2) Department of Mineralogy, Geneva University, Rue des Maraichers 13, Geneva, CH-1205, Switzerland, (3) ETH-Honggerberg, Inst Geophysik, Zurich, CH-8093, Switzerland
5-30116QUATERNARY TECTONIC HISTORY OF THE GULF OF GUAYAQUIL-TUMBES BASIN AS THE SIGNATURE OF THE NORTH ANDEAN BLOCK TECTONIC ESCAPE: WITT, Cesar1, BOURGOIS, Jacques2, and MICHAUD, François1, (1) UPMC-IRD-CNRS-UNSA- UMR 6526, Géosciences Azur and Escuela Politecnica Nacional, Departamento de Geologia, (Ecuador), B.P. 48 - Port de la Darse, Villefranche sur Mer, 06235, Ecuador, witt@geoazur.obs-vlfr.fr, (2) Geosciences Azur, Institut pour la Recherche et le Développement, Escuela Politecnica Nacional, Quito, 17-01-2759, Ecuador
5-31117ASSESSMENT OF GEODYNAMIC CONTROLS ON CENOZOIC MINERALIZATIONS OF THE ANDEAN CORDILLERA BETWEEN 0°-40°S USING BRGMS GIS ANDES©: VAN DONGEN, Michiel, School of Geosciences, Monash University, Wellington Road, Clayton, VIC 3800 Australia, michiel.vandongen@sci.monash.edu.au
5-32118THE NEOGENE STRATIGRAPHIC AND PALEOGEOGRAPHIC EVOLUTION OF THE MEJILLONES PENINSULA (NORTHERN CHILE) AND ITS RELATIONSHIP WITH LONG-TERM, SUBDUCTION-RELATED EXTENSIONAL TECTONICS: CANTALAMESSA, Gino1, DI CELMA, Claudio1, RAGAINI, Luca2, VALLERI, Gigliola3, and LANDINI, Walter2, (1) Dipartimento di Scienze della Terra, Università di Camerino, Via Gentile III da Varano, Camerino, 62032, Italy, claudio.dicelma@unicam.it, (2) Dipartimento di Scienze della Terra, Università di Pisa, Via Santa Maria, Pisa, 56126, Italy, (3) Dipartimento di Scienze della Terra, Università di Firenze, Via La Pira 4, Firenze, 5512, Italy
5-33119TIME CONSTRAINTS FOR MAGMATIC AND METAMORPHIC /HYDROTHERMAL PROCESSES DURING THE JURASSIC AND EARLY-CRETACEOUS IN THE COASTAL CODILLERA, NORTHERN CHILE: OLIVEROS, Verónica1, FÉRAUD, Gilbert2, AGUIRRE, Luis1, and FORNARI, Michel2, (1) Departamento de Geología, Universidad de Chile, Plaza Ercilla 803, Santiago, 8370450, Chile, volivero@ing.uchile.cl, (2) Géosciences Azur, Université de Nice, Parc Valrose, Nice, 06108, France
5-34120EL ESPINO IRON-OXIDE COPPER GOLD DEPOSIT, COASTAL CORDILLERA OF NORTHERN CHILE: LOPEZ-ORREGO, Gloria, HITZMAN, Murray, and NELSON, Eric, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, gplopezo@mines.edu
5-35121EVIDENCE OF MIDDLE TO LATE CRETACEOUS COMPRESSIVE DEFORMATION IN THE HIGH ANDES OF MENDOZA, ARGENTINA: ORTS, Sergio, Río Tinto Mining, Rivadavia 902, Godoy Cruz, Mendoza, 5501, Argentina, Sergio.Orts@riotinto.com and RAMOS, Victor A., Laboratorio de Tectónica Andina, FCEN, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, Buenos Aires, 1428, Argentina
5-36122KINEMATIC MODEL FOR BASEMENT-INVOLVED BACKTHRUSTING: EXAMPLES OF THE MALARGÜE FOLD AND THRUST BELT, CORDILLERA PRINCIPAL, MENDOZA, ARGENTINA: TURIENZO, Martín Miguel and DIMIERI, Luis V., Departamento de Geología, Universidad Nacional del Sur, San Juan 670, Bahía Blanca, 8000, Argentina, turienzo@uns.edu.ar
5-37123GEOLOGY OF THE BORBOLLÓN RIVER AREA IN THE NORTHERN MALARGÜE FOLD AND THRUST BELT, MAIN CORDILLERA, MENDOZA PROVINCE, ARGENTINA: MESCUA, José F., Laboratorio de Tectónica Andina, Departamento de Ciencias Geológicas, Universidad de Buenos Aires, Intendente Güiraldes 2160, Capital Federal C1428EGA Argentina, jfmescua@yahoo.com.ar
5-38124PLIO-PLEISTOCENE UPLIFT OF WESTERN CORDILLERA PRINCIPAL FROM SPATIAL AND TEMPORAL DISTRIBUTION OF LARGE ROCKSLIDES, SOUTHERN CENTRAL ANDES OF CHILE: ANTINAO, José Luis, Earth Sciences, Dalhousie University, 3006 LSC, Halifax, NS B3H4J1 Canada, jantinao@dal.ca
5-39125COSMOGENIC EXPOSURE AGES OF LAVA FLOWS THAT TEMPORARILY DAMMED THE RIO GRANDE AND RIO SALADO, MENDOZA PROVINCE, ARGENTINA: MARCHETTI, David W., Department of Geology and Geophysics, University of Utah, 135 S 1460 E Room 719, Salt Lake City, UT 84112, dwmarche@mines.utah.edu, CERLING, Thure E., Geology & Geophysics, University of Utah, 135 S. 1460 East Room 719, Salt Lake City, UT 84112, EVENSON, Edward B., Department of Earth and Environmental Sciences, Lehigh Univ, Bethlehem, PA 18015, GOSSE, John C., Earth Sciences, Dalhousie Univ, Halifax, NS B3H 3J5, Canada, and MARTINEZ, Oscar, Geology, Universidad Nacional de la Patagonia, Esquel, Argentina
5-40126GEOLOGIC MAPPING, SEDIMENTOLOGY, STRUCTURE, AND 40AR/39AR GEOCHRONOLOGY OF THE SOUTHEAST LAGUNA DEL LAJA AREA, CENTRAL ANDES, CHILE (37º30'S 71º15'W): HERRIOTT, Trystan M.1, CHARRIER, Reynaldo2, CROFT, Darin A.3, FLYNN, John J.4, GANS, Phillip B.1, WERTHEIM, Jill A.1, and WYSS, André R.1, (1) Earth Science, University of California, Santa Barbara, CA 93106-9630, trystan@umail.ucsb.edu, (2) Geología, Universidad de Chile, Casilla 13518, Santiago, 21, Chile, (3) Anatomy, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106-4930, (4) Paleontology, American Museum of Natural History, New York, NY 10024
5-41127BOREHOLE BREAKOUT AND HORIZONTAL STRESS FIELD ANALYSIS IN THE NEUQUEN AND MENDOZA RETROARC: GUZMÁN, Cecilia G.1, CRISTALLINI, Ernesto O.1, and BOTTESI, Germán L.2, (1) Laboratorio de Modelado Geológico, Dpto. de Ciencias Geológicas, FCEyN, UBA, Pabellón II, Ciudad Universitaria, Cap. Fed., Bs. As, C1428EHA, Argentina, ceciliagguzman@hotmail.com, (2) REPSOL-YPF, Dirección de Exploración y Desarrollo de Negocio ABB, Esmeralda 255, Piso 10°, Oficina 1001E, Cap. Fed., Bs. As, C1035ABE, Argentina
5-42128DEEP SEISMIC DISCONTINUITY STRUCTURE BENEATH CENTRAL NEUQUEN BASIN, ARGENTINA: COMÍNGUEZ, Alberto, Departamento de Geofísica Aplicada, Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, La Plata, 1900, Argentina, ahcominguez@yahoo.com and FRANZESE, Juan, Centro de Investigaciones Geologicas, Universidad Nacional de La Plata - CONICET, Calle 1 Nro. 644, La Plata, 1900, Argentina
5-43129TERTIARY EVOLUTION OF THE ÑIRIHUAU BASIN, NORTHERN PATAGONIAN ANDES, ARGENTINA: ASENSIO, Marcos1, BECHIS, Florencia2, ZAVALA, Carlos1, and CRISTALLINI, Ernesto O.3, (1) Instituto Argentino de Oceanografía (IADO), CONICET, Camino de La Carrindanga km 7.5, Bahía Blanca, 8000, Argentina, masensio@uns.edu.ar, (2) Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CRICYT, CONICET, CC 330, Mendoza, 5500, Argentina, (3) Laboratorio de Modelado Geológico, FCEN, Universidad de Buenos Aires, Pabellón II, Ciudad Universitaria, Buenos Aires, 1428, Argentina
5-44130RETROARC EXTENSION ASSOCIATED WITH REACTIVATION OF BASEMENT STRUCTURES AND RETROARC VOLCANISM (38º30S - 71ºW): TUNSTALL, Cynthia Sr1, FOLGUERA, Andrés1, and RAMOS, Victor A.2, (1) Laboratorio de Tectónica Andina, Universidad de Buenos Aires, Cuidad universitaria, Buenos Aires, 1428, Argentina, c_tunstall@gl.fcen.uba.ar, (2) Laboratorio de Tectónica Andina, Universidad de Buenos Aires, Ciudad universitaria, Buenos Aires, 1428, Argentina, andes@gl.fcen.uba.ar
5-45131OLIVINE HOSTED MELT INCLUSIONS FROM MAFIC SMALL ERUPTIVE CENTERS, CENTRAL SOUTHERN VOLCANIC ZONE, CHILE: WACASTER, SG., Earth Sciences, Florida International University, Department of Earth Sciences, PC 344, University Park, 11200 SW 8th Street, Miami, FL 33199, susan.wacaster@fiu.edu and HICKEY-VARGAS, R., Department of Earth Sciences, Florida International University, Department of Earth Sciences, PC 344, University Park, 11200 SW 8th Street, Miami, FL 33199
5-46132CONTINENTAL BACKARC VOLCANISM OF NORTHERN PATAGONIA: A COMPARATIVE ANALYSIS: VAN WAGONER, Nancy A.1, HALLER, Miguel J.2, MASSAFERRO, Gabriela I.2, and DOSTAL, Jarda3, (1) Geology, Acadia Univ, Wolfville, NS B4P 2R6, Canada, nancy.vanwagoner@acadiau.ca, (2) Universidad Nacional de la Patagonia San Juan Bosco - CONICET, Bvard. Brown 3500, Puerto Madryn, 9120, Argentina, (3) Earth Sciences, St. Mary's Univ, Halifax, NS B3H 3C3, Canada
5-47133TERTIARY STRUCTURAL EVOLUTION OF THE EASTERN BORDER OF THE NORTHERN PATAGONIAN ANDES FROM 41º TO 41º30′ S, ARGENTINA: BECHIS, Florencia, Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales (IANIGLA), CRICYT, CONICET, CC 330, Mendoza, 5500, Argentina, fbechis@lab.cricyt.edu.ar and CRISTALLINI, Ernesto O., Laboratorio de Modelado Geológico, FCEN, Universidad de Buenos Aires, Pabellón II, Ciudad Universitaria, Buenos Aires, 1428, Argentina
5-48134EMPLACEMENT OF THRUST-SHEETS RECORDED IN UPPER CRETACEOUS BASIN FILL, MAGALLANES (AUSTRAL) BASIN, SOUTHERN CHILE: ROMANS, Brian W.1, FILDANI, Andrea2, HUBBARD, Stephen M.1, CRANE, William H.2, and GRAHAM, Stephan A.1, (1) Department of Geological & Environmental Sciences, Stanford University, 450 Serra Mall, Bldg 320, Stanford, CA 94305, bromans@pangea.stanford.edu, (2) ChevronTexaco ETC, San Ramon, CA 94583
5-49135MAGMATIC AND STRUCTURAL EVOLUTION OF THE TORTUGA OPHIOLITE, SOUTHERN CHILE: YOSHINOBU, Aaron S., Dept. of Geosciences, Texas Tech Univ, Lubbock, TX 79409-1053, aaron.yoshinobu@ttu.edu
5-50136ND-ISOTOPIC COMPOSITION OF JURASSIC BIMODAL METAIGNEOUS SUITES AT THE NORTHERNMOST SEAFLOOR REMNANT OF THE ROCAS VERDES BASIN (PATAGONIAN ANDES): CALDERÓN, Mauricio, HERVE, Francisco, and CORDANI, Umberto, Departamento de GeologíaU, Universidad de Chile, Casilla 13518, Correo 21, Santiago, NA, Chile, caldera@esfera.cl
5-51137MODELING GEOPHYSICAL DATA IN THE USHUAIA REGION, TIERRA DEL FUEGO, ARGENTINA: RELATIONSHIP BETWEEN INTRUSIVE BODIES AND TECTONICS: PERONI, Javier1, TASSONE, Alejandro1, LIPPAI, Horacio1, LODOLO, Emanuele2, MENICHETTI, Marco3, and VILAS, Juan Francisco1, (1) Dpto. Ciencias Geológicas Instituto de Geofisica “Daniel A. Valencio”, Universidad de Buenos Aires-CONICET, FCEN Pabellón 2, entrepiso. (1428) Ciudad autónoma de Buenos Aires, Argentina, Capital, 1428, Argentina, peroni@gl.fcen.uba.ar, (2) 2 Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS), P.O. Box 2011, 34016 Trieste, Trieste, 34016, Italy, (3) Istituto di Geodinamica e Sedimentologia, Universite di Urbino, Campus universitario, Urbino, 61029, Italy
5-52138STRUCTURE AND EVOLUTION OF THE FORELAND THRUST-FOLD BELT OF THE FUEGIAN ANDES, TIERRA DEL FUEGO, ARGENTINA: TORRES CARBONELL, Pablo J., Laboratorio de Geología Andina, Centro Austral de Investigaciones Científicas (CADIC-CONICET), Houssay 200, Ushuaia, (9410), Argentina, polmacleod@hotmail.com, OLIVERO, Eduardo B., Laboratorio de Geología Andina, Centro Austral de Investigaciones Cientificas (CADIC-CONICET), Houssay 200, Ushuaia, (9410), Argentina, and DIMIERI, Luis V., Cátedra de Geología Estructural, Universidad Nacional del Sur, San Juan 670, Bahía Blanca, (8000), Argentina
5-53139WORLD COAL QUALITY INVENTORY--ARGENTINA: BROOKS, William E., U.S. Geological Survey, 956 National Center, Reston, VA 20191, wbrooks@usgs.gov, WILLETT, Jason C., U.S. Geol Survey, 956 National Center, Reston, VA 20191, and FINKELMAN, Robert B., U.S. Geological Survey, MS 956 National Center, Reston, VA 20192
5-54140ORGANIC GEOCHEMISTRY AND PETROGRAPHY OF ORGANIC-RICH SEDIMENTS OF SHEMSHAK FORMATION IN EASTERN ALBORZ, NORTH IRAN: SHEKARIFARD, Ali, Mining Engineering, Tehran University, P.O. Box 11365-4563, Tehran, Iran, Tehran, Iran, shekarifard@gmail.com and SEYED-EMAMI, Kazem, Mining Engineering, Tehran University
5-55141DON'T FORGET THE TEACHERS! (NO SE OLVIDE A LOS MAESTROS!): PINILLA, Theresa, Stockbridge Middle School, 1126 Evergreen Way, Stockbridge, GA 30281, tpinilla@gmail.com

Back to the Backbone of the Americas—Patagonia to Alaska, (3–7 April 2006)
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