T130 Modes of Lithospheric Extension: Oceanic and Continental Core Complexes

Sunday, 5 October 2008
8:00 AM - 12:00 PM

Presentations

• 8:00 AM
  Mapping the Lower Ocean Crust: Evidence for Variable Melt Production and Mantle Composition during Normal Seafloor Spreading
  Henry J.B. Dick, Woods Hole Oceanographic Institution, Woods Hole, MA
  151173 (Technical Sessions)
• 8:15 AM
  Seismic Evidence for Large-Scale Compositional Heterogeneity of Oceanic Core Complexes
  Juan Pablo Canales, Woods Hole Oceanographic Institution, Woods Hole, MA and Brian E. Tucholke, Woods Hole Oceanographic Institution, Woods Hole, MA and Min Xu, Woods HOle Oceanographic Institution, Woods Hole, MA
  149755 (Technical Sessions)
• 8:30 AM
  Non-Volcanic Seafloor Spreading and Oceanic Core Complexes: You Can Have One without the Other
  Timothy Schroeder, Bennington College Science and Mathematics, Bennington, VT and Niels Jöns, University of Bremen, Bremen, N/A and Michael Cheadle, University of Wyoming, Laramie, WY and Wolfgang Bach, University of Bremen, Bremen, N/A
  150971 (Technical Sessions)
• 8:45 AM
  Extensive Core Complex Formation in a Magma Starved Segment of the the Mid-Atlantic Ridge Between 12°-16°n: Strain Softening and a Coupled Crust-Mantle Rheology
  John F. Casey, University of Houston, Houston, TX and Roger C. Searle, Durham University, Duhram, N/A and Christopher MacLeod, Cardiff University, Cardiff, N/A and Bramley J. Murton, Southampton Oceanography Centre, Southampton, N/A
  152181 (Technical Sessions)
• 9:00 AM
  Oxide Gabbros from IODP Hole 1309D: Recorders of High-Temperature Strain and Alteration of the Atlantis Massif, An Oceanic Core Complex on the Mid-Atlantic Ridge
  Nicholas W. Hayman, University of Texas, Austin, TX
  148552 (Technical Sessions)
• 9:15 AM
  The Geometry and Mechanics of Active Oceanic Detachment Faulting from An Ocean-Bottom Seismicity Survey at the TAG Segment of the Mid-Atlantic Ridge (26°N)
  Brian J. deMartin, Brown University, Providence, RI and Robert Reves-Sohn, Woods Hole Oceanographic Institution, Woods Hole, MA
  149972 (Technical Sessions)
• 9:30 AM
  Pluton Emplacement Kinematics and Arc Collapse during Extensional Tectonics
  Gabriela V. Depine, Cornell University, Ithaca, NY and Chris Andronicos, Cornell University, Ithaca, NY
  151135 (Technical Sessions)
• 10:00 AM
  Insights on Metamorphic Core Complex Formation from the Sierra Mazatán Case Study
  Martin S. Wong, Colgate University, Hamilton, NY and Phillip B. Gans, University of California, Santa Barbara, Santa Barbara, CA
  145424 (Technical Sessions)
• 10:15 AM
  Core Complexes Are Tectonic Windows of Opportunity: A Microstructural Evaluation of Shear Zone Rheology and Strain Localization in the South Mountains Core Complex, Arizona
  Elena A. Miranda, California State University Northridge, Northridge, CA and James S. Carter, California State University Northridge, Northridge, CA
  151935 (Technical Sessions)
• 10:30 AM
  Rheologically Driven Strain Partitioning in the Footwall Shear Zone of a Metamorphic Core Complex, Raft River Mountains, Utah
  Walter Sullivan, Colby College Department of Geology, Waterville, ME
  147927 (Technical Sessions)
• 10:45 AM
  Shallow Initial Dip for the Northern Snake Range Footwall: Constraints from Geothermobarometry
  Frances J. Cooper, University of Southern California, Los Angeles, CA and John P. Platt, Univ of Southern California, Los Angeles, CA
  148884 (Technical Sessions)
• 11:00 AM
  Exhumation of the Trans-Himalayan Ama Drime Massif: Implications for Orogen-Parallel Mid-Crustal Flow and Exhumation on the Southern Margin of the Tibetan Plateau
  Micah Jessup, University of Tennessee, Knoxville, TN and John Cottle, NERC Isotope Geosciences Laboratory, Nottingham, N/A and Dennis Newell, Los Alamos National Laboratory, Los Alamos, NM and Aaron Berger, Virginia Tech, Blacksburg, VA and James Spotila, Virginia Tech, Blacksburg, VA
  150857 (Technical Sessions)
• 11:15 AM
  The Geomorphic Response of An Active Metamorphic Core-Complex: An Example from the Lunggar Rift, Southern Tibet
  Michael Taylor, University of Kansas, Lawrence, KS and Paul Kapp, University of Arizona, Tucson, AZ and Daniel F. Stockli, University of Kansas, Lawrence, N/A
  152171 (Technical Sessions)
• 11:30 AM
  Extension in Granulite Facies Orthogneisses of the Biranup Complex (Albany-Fraser Orogen), Bremer Bay, Western Australia
  Miriam Barquero-Molina, University of Missouri, Columbia, MO and Sharon Mosher, University of Texas at Austin Jackson School of Geosciences, Austin, TX and Catherine Spaggiari, Geological Survey of Western Australia, Perth, WA, N/A and Simon Bodorkos, Geoscience Australia, Canberra ACT, N/A
  143708 (Technical Sessions)
• 11:45 AM
  The Northeastern Emplacement of the Pindos Basin Ophiolites and Their Response to Pelagonian Exhumation Tectonics (Northern Greece)
  Anne Ewing Rassios, Institute of Geology and Mineral Exploration, Kozani, N/A and Yildirim Dilek, Miami University, Oxford, OH and Dimitri Kostopoulos, University of Athens, Athens, N/A
  147670 (Technical Sessions)