T181 Active and Ancient Tectonics along the Northern Cordillera Margin—Magmatism, Deformation, Metamorphism, and Basin Development (Posters)

Tuesday, 30 October 2007
1:30 PM - 5:30 PM

Presentations

• 1:30 PM
  GEOCHEMICAL AND ND-PB ISOTOPIC EVOLUTION OF METABASITES FROM ATTENUATED CONTINENTAL LITHOSPHERE, NOME GROUP, SEWARD PENINSULA, ALASKA
  Robert A. Ayuso, Reston, VA and Alison B. Till, USGS, Anchorage, AK
  123617 (Technical Sessions)
• 1:30 PM
  REVISITING THE PALEOMAGNETISM OF A PALEOCENE TRENCH-RIDGE-TRENCH TRIPLE JUNCTION; KODIAK ISLANDS, ALASKA
  Kristin O'Connell, Carleton College, Northfield, MN and Bernard Housen, Bellingham, WA and Sarah Roeske, Davis, CA
  124131 (Technical Sessions)
• 1:30 PM
  GEOLOGIC SYNTHESIS OF THE METAMORPHIC CORE OF THE BROOKS RANGE OROGEN, ALASKA
  Alison B. Till, USGS, Anchorage, AK and J.a. Dumoulin, U.S. Geological Survey, Anchorage, AK and Anita G. Harris, U.S. Geological Survey, Emeritus, Deerfield Beach, FL and Thomas Moore, U.S. Geological Survey, Menlo Park, CA and Heather A. Bleick, USGS, Anchorage, AK
  124405 (Technical Sessions)
• 1:30 PM
  DETRITAL ZIRCON U-PB ANALYSIS OF PRE-MISSISSIPPIAN METASEDIMENTARY BASEMENT STRATA, NORTH SLOPE, ALASKA: EVIDENCE OF A CALEDONIAN CONNECTION
  Thomas Moore, U.S. Geological Survey, Menlo Park, CA and Christopher Potter, Bound Brook, NJ and Paul O'Sullivan, Apatite to Zircon, Inc, Viola, ID
  124563 (Technical Sessions)
• 1:30 PM
  DETRITAL ZIRCON GEOCHRONOLOGY OF THE UPPER CRETACEOUS KUSKOKWIM GROUP, SOUTHWESTERN ALASKA
  Marti L. Miller, U.S. Geological Survey, Anchorage, AK and Dwight Bradley, USGS, Anchorage, AK and James L. Kalbas, ExxonMobil Development Company, Houston, TX and Richard Friedman, The Univ of British Columbia, Vancouver, BC and Paul O'Sullivan, Apatite to Zircon, Inc, Viola, ID
  125889 (Technical Sessions)
• 1:30 PM
  ACTIVE TECTONICS OF THE WESTERN ST. ELIAS SYNTAXIS
  Terry Pavlis, University of Texas at El Paso, El Paso, TX and James B. Chapman, University of Arizona, Tucson, AZ and M. Vorkink, University of Utah, Salt Lake City, UT and Ronald L. Bruhn, Univ of Utah, Salt Lake City, UT and Kenneth Ridgway, Purdue University, West Lafayette, IN
  126030 (Technical Sessions)
• 1:30 PM
  TECTONICS AND STRUCTURAL EVOLUTION OF THE EASTERN ST. ELIAS SYNTAXIS, ALASKA
  James B. Chapman, University of Texas, El Paso, El Paso, TX and Terry Pavlis, University of Texas at El Paso, El Paso, TX and Adam Barker, Orono, ME and Rachel Headley, Seattle, WA and Kenneth Ridgway, Purdue University, West Lafayette, IN and Aaron L. Berger, Virginia Polytechnic Institute and State University, Blacksburg, VA and James Spotila, Virginia Tech, Blacksburg, VA and Michael Vorkink, University of Utah, Salt Lake City, UT and Ronald L. Bruhn, Univ of Utah, Salt Lake City, UT
  126070 (Technical Sessions)
• 1:30 PM
  PALEOGEOGRAPHY OF THE DEVONIAN WOODCHOPPER VOLCANICS, YUKON-CHARLEY RIVERS NATIONAL PRESERVE, EAST-CENTRAL ALASKA
  David M. Rohr, Sul Ross State University, Alpine, TX and Robert B. Blodgett, Anchorage, AK and Douglas Beckstead, National Park Service, Fairbanks, AK
  126173 (Technical Sessions)
• 1:30 PM
  NEW CONSTRAINTS ON THE ORIGIN OF THE TIKCHIK TERRANE, SOUTHWESTERN ALASKA
  Stephen Box, Spokane, WA and Susan Karl, U.S. Geological Survey, Anchorage, AK and Richard M. Friedman, Univ of British Columbia, Vancouver, BC
  126194 (Technical Sessions)
• 1:30 PM
  SANDSTONE PETROGRAPHY, FOSSILS, AND DETRITAL ZIRCON AGES DISTINGUISH PROVENANCE IN THE TIKCHIK LAKES AREA, SOUTHWEST ALASKA
  Susan M. Karl, US Geological Survey, Anchorage, AK and Stephen Box, Spokane, WA and Richard M. Friedman, University of British Columbia, Vancouver, BC
  126243 (Technical Sessions)
• 1:30 PM
  USING LIDAR TO DISTINGUISH BETWEEN COMPETING MODELS OF TERRANE ACCRETION IN THE WESTERN SEGMENT OF THE SAINT ELIAS OROGEN, ALASKA
  Mike Vorkink, University of Utah, Salt Lake City, UT and Ron Bruhn, University of Utah, Salt Lake City, UT and Terry Pavlis, University of Texas at El Paso, El Paso, TX and Jim McAlpin, Crestone, CO and Jay Chapman, UTEP, El Paso, N/A
  126348 (Technical Sessions)
• 1:30 PM
  OXYGEN ISOTOPE RATIOS OF REFRACTORY MINERAL PHASES FROM LARAMIDE-RELATED TERTIARY INTRUSIONS OF THE BLACK HILLS, SOUTH DAKOTA
  E.M. King, Illinois State University, Normal, IL and P.A. Meister, Illinois State University, Normal, IL and M.J. Spicuzza, University of Wisconsin, Madison, WI and J.W. Valley, University of Wisconsin, Madison, WI
  127127 (Technical Sessions)
• 1:30 PM
  DETRITAL ZIRCON AGES FROM METASEDIMENTS IN THE FORTYMILE DISTRICT, EAST CENTRAL ALASKA
  Nicholas Van Wyck, Anchorage, AK
  127734 (Technical Sessions)
• 1:30 PM
  ROLES OF SLAB WINDOW MIGRATION, FAULT GEOMETRY AND TECTONIC WEDGING IN CRUSTAL EVOLUTION EAST OF THE NORTHERN SAN ANDREAS FAULT
  Robert McLaughlin, U. S. Geological Survey, Menlo Park, CA and Robert C. Jachens, U. S. Geological Survey, Menlo Park, CA and Victoria Langenheim, U. S. Geological Survey, Moffett Field, CA and Robert J. Fleck, U. S. Geological Survey, Menlo Park, CA and Andrei M. Sarna-Wojcicki, U. S. Geological Survey, Menlo Park, CA and William C. Evans, U. S. Geological Survey, Menlo Park, CA and M. Lee Davisson, Lawrence Livermore National Lab, Livermore, CA
  127893 (Technical Sessions)
• 1:30 PM
  STRATIGRAPHY, GEOCHRONOLOGY, GEOCHEMISTRY, AND PALEONTOLOGY OF THE MCCARTHY FORMATION, WRANGELL MOUNTAINS, ALASKA: BEARINGS ON PRE-COLLISION CRUSTAL CONDITIONS WITHIN THE WRANGELLIA TERRANE
  John Witmer, Bucknell University, Lewisburg, PA and Jeffrey Trop, Bucknell University, Lewisburg, PA and Matthew Rioux, Massachusetts Institute of Technology, Cambridge, MA and Jozsef Palfy, Budakeszi and Robert B. Blodgett, Anchorage, AK
  127894 (Technical Sessions)
• 1:30 PM
  MULTI-STAGE CRETACEOUS BASIN DEVELOPMENT IN SOUTHWESTERN ALASKA: MARINE DEPOSITIONAL RESPONSES DURING SYN- TO EARLY POST-COLLISION (?) MARGIN EVOLUTION
  James L. Kalbas, ExxonMobil Development Company, Houston, TX and Kenneth D. Ridgway, Purdue University, West Lafayette, IN and Marti L. Miller, U.S. Geological Survey, Anchorage, AK and Dwight C. Bradley, U.S. Geological Survey, Anchorage, AK
  128753 (Technical Sessions)
• 1:30 PM
  UPDATES TO THE LATE PALEOZOIC HISTORY OF THE ALEXANDER TERRANE
  Erik Cowing Katvala, University of Calgary, Calgary, AB and Charles Henderson, University of Calgary, Calgary, AB
  129168 (Technical Sessions)
• 1:30 PM
  STRUCTURE AND TECTONIC EVOLUTION OF THE BELT BASIN, MONTANA/IDAHO FROM GEOPHYSICAL CONSTRAINTS
  Paul Bedrosian, United States Geological Survey 1 Denver Federal Center, Denver, CO and Stephen Box, Spokane, WA and Louise Pellerin, Green Engineering Inc, Anchorage, AK
  129312 (Technical Sessions)
• 1:30 PM
  MIOCENE AND PLIOCENE SEDIMENTARY FOOTPRINT OF FLAT-SLAB SUBDUCTION OF THE YAKUTAT TERRANE, SOUTHERN ALASKA
  Emily S. Finzel, Purdue University, West Lafayette, IN and Kenneth Ridgway, Purdue University, West Lafayette, IN and Patrick Brennan, Purdue University, West Lafayette, IN and Paul Landis, Houston, TX
  129659 (Technical Sessions)
• 1:30 PM
  ARCHITECTURE, KINEMATICS, AND EXHUMATION OF A GLACIATED OROGENIC WEDGE: THE CENTRAL ST. ELIAS OROGEN, ALASKA
  James A. Spotila, Virginia Polytechnic Institute and State Univ, Blacksburg, VA and Aaron L. Berger, Virginia Polytechnic Institute and State University, Blacksburg, VA and Jay Chapman, UTEP, El Paso, N/A and Terry Pavlis, University of Texas at El Paso, El Paso, TX and Eva Enkelmann, Lehigh University, Bethlehem, PA
  130327 (Technical Sessions)
• 1:30 PM
  NEW INSIGHTS INTO THE ORIGIN AND DISPLACEMENT HISTORY OF THE YAKUTAT TERRANE, SOUTHEASTERN ALASKA
  Paul Landis, Purdue University, West Lafayette, IN and Kenneth Ridgway, Purdue University, West Lafayette, IN and Patrick Brennan, Purdue University, West Lafayette, IN and George E. Gehrels, University of Arizona, Tucson, AZ
  130692 (Technical Sessions)
• 1:30 PM
  THERMOCHRONOLOGIC CONSTRAINTS ON THE UPLIFT AND FORMATION OF DENALI MOUNT MCKINLEY, CENTRAL ALASKA BASED ON APATITE U-TH/HE DATING
  S.E. Perry, Syracuse University, Syracuse, NY and P.G. Fitzgerald, Syracuse University, Syracuse, NY
  130876 (Technical Sessions)
• 1:30 PM
  KYANITE AFTER ANDALUSITE IN THE CONTACT AUREOLE OF AN EPIDOTE-BEARING PLUTON NEAR PETERSBURG, ALASKA: CONFIRMATION OF RAPID TECTONIC BURIAL IN SOUTHEAST ALASKA?
  Matthew Dettinger, University of Arizona, Tucson, AZ and Lauren Colwell, Carleton College, Northfield, MN and Sonya Krishnan, Carleton College, Northfield, MN and Tyler Mackey, Carleton College, Northfield, MN and C. Davidson, Carleton College, Northfield, MN
  131008 (Technical Sessions)
• 1:30 PM
  MIOCENE INTRA-ARC BASIN DEVELOPMENT WITHIN THE WRANGELL VOLCANIC FIELD, FREDERIKA FORMATION AND LOWER WRANGELL LAVA, EASTERN WRANGELL MOUNTAINS, ALASKA
  Jeffrey Trop, Bucknell University, Lewisburg, PA and Darin Snyder, Miami University, Oxford, OH and William Hart, Miami University, Oxford, OH and Bruce Idleman, Lehigh University, Bethlehem, PA and M. Ryan Delaney, Bucknell University, Lewisburg, PA
  131371 (Technical Sessions)
• 1:30 PM
  VARIABLE EXHUMATION ALONG THE STRIKE OF THE ALASKA RANGE
  Jeff Benowitz, University of Alaska Fairbanks, Fairbanks, AK and Stephanie Perry, Syracuse University, Syracuse, NY and Paul Layer, Univ of Alaska Fairbanks, Fairbanks, AK and Paul Fitzgerald, Syracuse Univ, Syracuse, NY
  131768 (Technical Sessions)
• 1:30 PM
  TRANSPORT STRATIGRAPHY OF THE YAKUTAT TERRANE, SOUTHERN ALASKA BASED ON DETRITAL ZIRCON FISSION-TRACK AND U/PB ANALYSIS
  S.E. Perry, Syracuse University, Syracuse, NY and J.I. Garver, Union College, Schenectady, NY and K.D. Ridgway, Purdue Univ, West Lafayette, IN
  131955 (Technical Sessions)
• 1:30 PM
  DO ALONG-STRIKE CHANGES IN SUBDUCTION PLATE GEOMETRY INFLUENCE INTRACONTINENTAL STRESS LOCALIZATION? NUMERICAL MODELS OF THE PACIFIC-YAKUTAT-CENTRAL ALASKA PLATE BOUNDARY
  Julie B. Willis, BYU-Idaho, Rexburg, ID and Ronald L. Bruhn, Univeristy of Utah, Salt Lake City, UT
  132055 (Technical Sessions)
• 1:30 PM
  FORMATION AGE AND MAGMA SOURCES FOR THE ANTIOQUEÑO BATHOLITH DERIVED FROM LA-ICP-MS URANIUM–LEAD DATING AND HAFNIUM-ISOTOPE ANALYSIS OF ZIRCON GRAINS
  Sergio A. Restrepo-Moreno, University of Florida, Gainesville, FL and David Foster, Univ Florida Dept Geological Sciences, Gainesville, FL and G.D. Kamenov, University of Florida, Gainesville, FL
  132529 (Technical Sessions)