Geological Society of America

8:00 AM

THROUGH A GLASS, DARKLY: SYMMETRY AND ASYMMETRY IN THE MAGMA POOR RIFTED MARGINS OF SOUTHERN AUSTRALIA AND EAST ANTARCTICA

Nicholas G. Direen, University of Tasmania, Hobart, N/A and Howard M.J. Stagg, Geoscience Australia, Canberra, N/A and Philip A. Symonds, Geoscience Australia, Canberra, N/A and James B. Colwell, Geoscience Australia, Canberra, N/A

160394 (Technical Sessions)

8:20 AM

HOT AND COLD DETACHMENT ZONES: LINKING LISTRIC NORMAL FAULTING IN THE SOUTHERN CANADIAN ROCKIES FORELAND THRUST-FOLD BELT TO BACK-ARC DEXTRAL TRANSTENSION AND DUCTILE CRUSTAL BOUDINAGE

Raymond A. Price, Queen's Univ, Kingston, ON

160371 (Technical Sessions)

8:35 AM

CORDILLERAN DETACHMENTS AS DYNAMIC INTERFACES BETWEEN METEORIC AND DEEP FLUID SYSTEMS

Christian Teyssier, University of Minnesota, Minneapolis, MN and Donna L. Whitney, University of Minnesota, Minneapolis, MN and Andreas Mulch, Universität Hannover, Hannover, N/A

166627 (Technical Sessions)

8:50 AM

CONTRASTING MIDDLE AND UPPER CRUSTAL DETACHMENT FAULT HYDROTHERMAL SYSTEMS: VALHALLA COMPLEX, BRITISH COLUMBIA AND THE SOUTHERN WHITE PINE RANGE, NEVADA

Gregory J. Holk, California State Univ, Long Beach, CA and Hugh P. Taylor, California Institute of Technology, Pasadena, CA and Denitsa Toneva, California State Univ Long Beach, Long Beach, CA and Robert D. Francis, California State Univ Long Beach, Long Beach, CA

162116 (Technical Sessions)

9:05 AM

STUDY OF A FOSSIL HYDROTHERMAL SYSTEM IN THE NORTHERN SNAKE RANGE USING STABLE ISOTOPE, MICROSTRUCTURAL AND 40Ar/39Ar DATA AND ITS USE AS A PALEOALTIMETER

Aude Gebelin, Leibniz Universität Hannover, Hannover, N/A and Andreas Mulch, Universität Hannover, Hannover, N/A and Christian Teyssier, Univ of Minnesota, Minneapolis, MN and Matthew T. Heizler, New Mexico Institute of Mining & Technology, Socorro, NM

160056 (Technical Sessions)

9:25 AM

UNUSUAL ‘GRADED' FAULT ROCKS FROM THE SNAKE RANGE DETACHMENT, NV – IMPLICATIONS FOR FLUID INVOLVEMENT IN LOW-ANGLE NORMAL FAULT PROCESSES AND THE ANGLE OF SLIP OF CORE COMPLEX DETACHMENTS

Samuel H. Haines, Chevron Energy Technology Corporation, Houston, TX and Ben van der Pluijm, University of Michigan, Ann Arbor, MI

166431 (Technical Sessions)

9:40 AM

PERVASIVE MID-CRUSTAL EXTENSIONAL STRAIN FOLLOWED BY RAPID LOCALIZATION: AN EXAMPLE FROM THE PIONEER CORE COMPLEX, IDAHO

James Vogl, University of Florida, Gainesville, FL and David W. Rodgers, Idaho State University, Pocatello, ID and Allen Kent, University of Florida, Gainesville, FL

165285 (Technical Sessions)

9:55 AM

‘MINIDETACHMENT' LOCALIZATION CONTROLLED BY FLUID INFILTRATION IN THE FOOTWALL OF THE WHIPPLE MOUNTAINS CORE COMPLEX: WEAK MATERIALS OR HIGH PORE PRESSURE?

Jane Selverstone, University of New Mexico, Albuquerque, NM and William H. Woodruff, University of New Mexico, Albuquerque, NM and Gary Axen, New Mexico Tech, Socorro, NM

161070 (Technical Sessions)

10:25 AM

EVIDENCE FOR STRESS ROTATION NEAR THE WEST SALTON DETACHMENT FAULT (WSDF), SALTON TROUGH, CALIFORNIA

Gary Axen, New Mexico Tech, Socorro, NM and Amy Luther, New Mexico Tech, Socorro, NM and Jane Selverstone, University of New Mexico, Albuquerque, NM and Niranjan Khalsa, New Mexico Tech, Socorro, NM

162589 (Technical Sessions)

10:45 AM

SYSTEMATICALLY FRACTURED CLASTS IN THE TITUS CANYON FORMATION: EVIDENCE FOR LATE-STAGE BRITTLE DEFORMATION IN THE BOUNDARY CANYON DETACHMENT SYSTEM

Christie D. Lindemann, Purdue University, West Lafayette, IN and Eric M. Riggs, Purdue University, West Lafayette, IN

164299 (Technical Sessions)

11:00 AM

STRAIN PARTITIONING IN SYNTHETIC ACCOMMODATION ZONES AND SELECTED GEOTHERMAL SYSTEMS IN COLORADO

Paul Morgan, Colorado Geological Survey, Denver, CO and Matthew Sares, Colorado Geological Survey, Denver, CO

167074 (Technical Sessions)

11:15 AM

U-PB & O-ISOTOPE INVESTIGATION OF AN EOCENE MYLONITIC ORTHOGNEISS ON SERIFOS: A RECORD OF MELTING OR HP METAMORPHISM IN THE WESTERN CYCLADES?

C.A. Senkowski, University of Ottawa, Ottawa, ON and David Schneider, University of Ottawa Department of Earth Sciences, Ottawa, ON and C. Iglseder, University of Vienna, Vienna, N/A and Bernhard Grasemann, University of Vienna, Vienna, N/A and A. Schmitt, University of California, Los Angeles, CA

160849 (Technical Sessions)

11:30 AM

THE AMA DRIME DETACHMENT, TIBET-NEPAL: INSIGHTS INTO OROGEN-PARALLEL EXTENSION AND EXHUMATION OF THE AMA DRIME MASSIF

Jackie Langille, UNC Asheville, Asheville, NC and Micah Jessup, University of Tennessee, Knoxville, TN and John Cottle, University of California, Santa Barbara, CA and Dennis Newell, Utah State University, Logan, UT

160744 (Technical Sessions)

T12 Detachment Dynamics: Heat, Deformation, and Fluids in Extensional Systems

Presentations