T61 Neoproterozoic through Cretaceous Evolution of the North American Cordilleran Margin: Contrasting Tectonics, Paleogeography, and Paleoenvironments

Sunday, 18 October 2009
1:30 PM - 5:30 PM
B110/111/112

Presentations

• 1:35 PM
  EVIDENCE OF GRENVILLE-AGE DEFORMATION AND METAMORPHISM IN BELT SUPERGROUP METAPELITES OF NORTHERN IDAHO
  Timothy O. Nesheim, Bismarck, ND and Jane A. Gilotti, University of Iowa, Iowa City, IA and William C. McClelland, University of Iowa, Iowa City, IA and Helen M. Lang, West Virginia Univ, Morgantown, WV and Jeffrey Vervoort, Washington State University, Pullman, WA and Ashley M. Tefft, Washington State University, Pullman, WA and Charles Foster, University of Iowa, Iowa City, IA
  161967 (Technical Sessions)
• 1:50 PM
  FOUR STAGES IN CORDILLERAN EVOLUTION
  James W.H. Monger, Geological Survey of Canada, Vancouver, BC
  162819 (Technical Sessions)
• 2:10 PM
  EDIACARAN-EARLY CAMBRIAN CORDILLERAN VOLCANISM AND INCISION: EVIDENCE FOR RIFTING AND EUSTATIC LOWSTAND?
  James W. Hagadorn, Denver Museum of Nature and Science, Denver, CO
  165382 (Technical Sessions)
• 2:30 PM
  BREAKING UP IS HARD TO DO: EVOLUTION OF THE NORTH AMERICAN CORDILLERAN MARGIN IN THE CONTEXT OF THE SIBERIAN CONNECTION
  James Sears, University of Montana, Missoula, MT
  166829 (Technical Sessions)
• 2:45 PM
  MANTLE DRIP FROM THE RISING LEMHI ARCH: 500 MA PLUTONS AND DETRITAL ZIRCONS IN UPPER CAMBRIAN SANDSTONES, EASTERN IDAHO
  Paul Karl Link, Idaho State Univ, Pocatello, ID and Susanne Janecke, Utah State Univ, Logan, UT
  164573 (Technical Sessions)
• 3:00 PM
  LATE PALEOZOIC CONTRACTIONAL TECTONICS ON THE WESTERN LAURENTIAN MARGIN: A PROGRESS REPORT
  Patricia H. Cashman, University of Nevada, Reno, NV and James H. Trexler, University of Nevada, Reno, NV and Vladimir Davydov, Boise State University, Boise, ID and Walter Snyder, GSA Geoinformatics Division, Boise, ID and Wanda Taylor, University of Nevada, Las Vegas, Las Vegas, NV
  167217 (Technical Sessions)
• 3:30 PM
  THE TRIASSIC/JURASSIC BOUNDARY, COLORADO PLATEAU AREA, USA: MAGNETOSTRATIGRAPHIC CORRELATION OF THE MOENAVE FORMATION WITH THE STRATA FROM ST. AUDRIE'S BAY, UK, MOROCCO, AND NEWARK/HARTFORD BASINS
  Linda Lee Donohoo-Hurley, University of New Mexico, Albuquerque, NM and J.W. Geissman, University of New Mexico, Albuquerque, NM and Spencer Lucas, New Mexico Museum of Natural History and Science, Albuquerque, NM and Wolfram M. Kuerschner, Utrecht Univ, Utrecht, N/A
  164811 (Technical Sessions)
• 3:45 PM
  HIGH-PRECISION U-PB DATING OF NEOBLASTIC SPHENE FROM MYLONITIC ROCKS OF THE COUGAR CREEK COMPLEX, BLUE MOUNTAINS PROVINCE, OREGON – IDAHO: IMPLICATIONS FOR THE INTERPLAY BETWEEN DEFORMAITON AND ARC MAGMATISM
  Gene Alan Kurz, Boise State University, Boise, ID and Clyde J. Northrup, Boise State University, Boise, ID and M.D. Schmitz, Boise State University, Boise, ID
  162117 (Technical Sessions)
• 4:00 PM
  OVERVIEW OF JURASSIC-CRETACEOUS MAGMATISM IN THE BLUE MOUNTAINS PROVINCE (NE OREGON & W IDAHO): INSIGHTS FROM NEW PB/U (SHRIMP-RG) AGE DETERMINATIONS
  Kenneth Johnson, University of Houston-Downtown, Houston, TX and Joshua J. Schwartz, University of Alabama, Tuscaloosa, AL
  165515 (Technical Sessions)
• 4:15 PM
  ORIGIN OF PAIRED LATE JURASSIC HIGH AND LOW SR/Y MAGMATIC BELTS IN THE BLUE MOUNTAINS PROVINCE, NE OREGON
  Joshua J. Schwartz, University of Alabama, Tuscaloosa, AL and Kenneth Johnson, University of Houston-Downtown, Houston, TX
  165595 (Technical Sessions)
• 4:30 PM
  NEW GEOCHRONOLOGICAL CONSTRAINTS ON THE TIMING OF DEPOSITION IN THE COON HOLLOW AND WEATHERBY FORMATIONS, AND CORRELATIONS BETWEEN THE WALLOWA AND OLDS FERRY TERRANES, BLUE MOUNTAINS PROVINCE, NORTHERN U.S. CORDILLERA
  Kyle P. Tumpane, Boise State University, Boise, ID and M.D. Schmitz, Boise State University, Boise, ID
  166169 (Technical Sessions)
• 4:45 PM
  INITIATION OF THE CRETACEOUS, ANDEAN-TYPE MARGIN OF THE WESTERN U.S. CORDILLERA: INSIGHTS FROM DETRITAL-ZIRCON AGES OF THE COON HOLLOW FORMATION, IDAHO, U.S.A
  Todd LaMaskin, University of Wisconsin, Madison, WI and Rebecca Dorsey, Eugene, OR and Jeffrey Vervoort, Washington State University, Pullman, WA
  165325 (Technical Sessions)
• 5:00 PM
  INFLUENCE OF GROWING STRUCTURES ON CRETACEOUS ALLUVIAL SYSTEMS ALONG THE CORDILLERAN THRUST-BELT FRONT, VALLEY OF FIRE, SOUTHERN NEVADA
  Kelsey C. McNamara, University of New Mexico, Albuquerque, NM and James G. Schmitt, Montana State University, Bozeman, MT
  159461 (Technical Sessions)
• 5:15 PM
  PALEOMAGNETISM AND ROCK MAGNETISM OF REMAGNETIZED CARBONATE ROCKS FROM THE HELENA SALIENT, WESTERN MONTANA
  Benjamin F. Baugh, Western Washington University, Bellingham, WA and Bernard Housen, Western Washington University, Bellingham, WA and Russ Burmester, Western Washington University, Bellingham, WA
  166294 (Technical Sessions)