CALL FOR PROPOSALS:

ORGANIZERS

  • Harvey Thorleifson, Chair
    Minnesota Geological Survey
  • Carrie Jennings, Vice Chair
    Minnesota Geological Survey
  • David Bush, Technical Program Chair
    University of West Georgia
  • Jim Miller, Field Trip Chair
    University of Minnesota Duluth
  • Curtis M. Hudak, Sponsorship Chair
    Foth Infrastructure & Environment, LLC

 

Start |Author Index | View Uploaded Presentations | Meeting Information
Session No. 230
Wednesday, 12 October 2011: 8:00 AM-12:00 PM
Room 200DE (Minneapolis Convention Center)

T9. Tectonic Development of the Northern North American Cordillera

GSA Structural Geology and Tectonics Division; GSA Sedimentary Geology Division; GSA Geophysics Division

 

Jeffrey M. Trop, Brian A. Hampton and John I. Garver, Advocates
Paper #
Start Time
1
8:00 AM
ALASKA IN 3 ACTS – A POTENTIAL FIELD/TECTONIC STORY
SALTUS, Richard W., MS 964, US Geological Survey, Federal Center, Box 25046, Denver, CO 80225-0046 and ROESKE, Sarah M., Geology Department, University of California, Davis, One Shields Avenue, Davis, CA 95616, saltus@usgs.gov, saltus@usgs.gov
2
8:15 AM
ARCTIC ALASKA-CHUKOTKA CRUSTAL RESPONSE TO JURASSIC-CRETACEOUS PLATE-MARGIN TECTONICS
TILL, Alison B., USGS, 4210 University Dr, Anchorage, AK 99508, CALVERT, Andrew T., US Geological Survey, 345 Middlefield Rd, MS-937, Menlo Park, CA 94025 and HOUSEKNECHT, David W., US Geological Survey, 12201 Sunrise Valley Drive, MS 956, Reston, VA 20192, atill@usgs.gov, atill@usgs.gov
3
8:30 AM
DETRITAL ZIRCON-BASED PROTOLITH AGES, AFFINITIES, AND TECTONIC INTERPRETATIONS OF TWO GEOLOGIC “BLACK HOLES” IN ALASKA
BRADLEY, Dwight, U.S. Geological Survey, 4210 University Drive, Anchorage, AK 99508, TILL, Alison, USGS, 4200 University Dr, Anchorage, AK 99508, MILLER, Marti L., U.S. Geological Survey, 4200 University Drive, Anchorage, AK 99508-4667 and O'SULLIVAN, Paul, Apatite to Zircon, Inc, 1075 Matson Road, Viola, ID 83872-9709, dbradley@usgs.gov, dbradley@usgs.gov
4
8:50 AM
TOPOGRAPHIC AND EXHUMATION ASYMMETRY OF THE ALASKA RANGE RELATIVE TO THE DENALI FAULT: A REFLECTION OF LITHOSPHERIC HETEROGENEITY
FITZGERALD, P.G., Department of Earth Sciences, Syracuse University, Syracuse, NY 13244, ROESKE, Sarah M., Department of Earth and Planetary Sciences, University of California, Davis, Davis, CA 95616, BENOWITZ, Jeff, Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK 99775, PERRY, Stephanie E., Earth Sciences, Syracuse University, Syracuse, NY 13444, RICCIO, Steven, Earth Sciences, Syracuse University, Syracuse, 13244 and HUFF, Casey, Geology Department, University of California, Davis, Davis, CA 95616, pgfitzge@syr.edu, pgfitzge@syr.edu
5
9:05 AM
THE TOPOGRAPHICALLY ASYMMETRICAL ALASKA RANGE: MULTIPLE TECTONIC DRIVERS THROUGH SPACE AND TIME
BENOWITZ, Jeff, Geophysical Institute, University of Alaska Fairbanks, P.O. Box 755780, Fairbanks, AK 99775, ARMSTRONG, Phillip A., Geological Sciences, California State University, Fullerton, 800 N. State College Blvd, Fullerton, CA 92834, FITZGERALD, Paul, Syracuse Univ, Syracuse, NY 13244-1070, HAEUSSLER, Peter J., U.S. Geological Survey, 4210 University Dr, Anchorage, AK 99508, LAYER, Paul W., College of Natural Science and Mathematics, Univ of Alaska Fairbanks, PO 755780, Fairbanks, AK 99775, O'SULLIVAN, Paul, Apatite to Zircon, Inc, 1075 Matson Road, Viola, ID 83872-9709, PERRY, Stephanie, Department of Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244, RICCIO, Steven, Earth Sciences, Syracuse University, Syracuse, 13244-1070 and ROESKE, Sarah M., Geology Department, University of California, Davis, One Shields Avenue, Davis, CA 95616, jbenowitz@alaska.edu, jbenowitz@alaska.edu
6
9:20 AM
PROVENANCE OF JURASSIC TO CRETACEOUS FLYSCH ALONG THE TALKEETNA-CHILCHITNA FAULT SYSTEM HIGHLIGHTS THE NORTHERN BOUNDARY OF THE WRANGELLIA COMPOSITE TERRANE, ALASKA
HULTS, Chad P., USGS, 4210 University Dr, Anchorage, AK 99508, WILSON, Frederic H., Alaska Science Center, U.S. Geological Survey, 4210 University Dr, Anchorage, AK 99508, DONELICK, Margaret, Apatite to Zircon, Inc, 1075 Matson Road, Viola, ID 83872-9709 and O'SULLIVAN, Paul B., Apatite to Zircon, Inc, 1075 Matson Rd, Viola, ID 83872-9709, chults@usgs.gov, chults@usgs.gov
7
9:35 AM
NEW U-PB AGES AND HF ISOTOPIC VALUES FROM THE KAHILTNA ASSEMBLAGE IN THE EASTERN ALASKA RANGE, SOUTH-CENTRAL ALASKA
HUFF, Casey J.1, ROESKE, Sarah M.1, MOONEY, Philip R.1, WIMPENNY, Josh1, YIN, Qing-zhu2 and GEHRELS, G.E.3, (1)Geology Department, University of California, Davis, One Shields Avenue, Davis, CA 95616, (2)Earth and Planetary Sciences, U.C. Davis, Davis, CA 95616, (3)Department of Geosciences, University of Arizona, Tucson, AZ 85721, cjhuff@ucdavis.edu, cjhuff@ucdavis.edu
8
9:50 AM
STRUCTURES AND STRAIN HISTORIES ACROSS THE SUTURE: IMPLICATIONS FOR THE KINEMATICS OF THE COLLISION OF THE WRANGELLIA COMPOSITE TERRANE WITH THE MARGIN OF NORTH AMERICA
BIER, Sara E., Environmental Studies, Emory and Henry College, 30461 Garnand Drive, Emory, VA 24327-0947 and FISHER, Donald M., Department of Geosciences, Pennsylvania State University, University Park, PA 16802, sbier@ehc.edu, sbier@ehc.edu
9
10:05 AM
EARLY CENOZOIC TALKEETNA MOUNTAINS MAGMATISM IN SOUTH-CENTRAL ALASKA: RECORD OF CRUST-MANTLE VARIATIONS, TERRANE ACCRETION, AND PLUTON EXHUMATION
COLE, Ronald B., Dept of Geology, Allegheny College, 520 N. Main Street, Meadville, PA 16335, STEWART, Brian W., Department of Geology & Planetary Science, University of Pittsburgh, Pittsburgh, PA 15260 and LAYER, Paul W., College of Natural Science and Mathematics, Univ of Alaska Fairbanks, PO 755780, Fairbanks, AK 99775, ron.cole@allegheny.edu, ron.cole@allegheny.edu
10
10:20 AM
THERMAL EVOLUTION OF FLYSCH OF THE CHUGACH-PRINCE WILLIAM TERRANES, EASTERN PRINCE WILLIAM SOUND, ALASKA
GARVER, John I., Geology Department, Union College, 807 Union ST, Schenectady, NY 12308-2311, DAVIDSON, C., Department of Geology, Carleton College, One North College St, Northfield, MN 55057, IZYKOWSKI, Tyler I., Geology Department, Union College, 807 Union ST, Schenectady, NY 12308 and MILDE, Edward R., Department of Earth Sciences, Syracuse University, Heroy Geology Laboratory, Syracuse University, Syracuse, NY 13210, garverj@union.edu, garverj@union.edu
11
10:35 AM
FOCUSED ROCK UPLIFT RELATED TO FLAT-SLAB SUBDUCTION IN SOUTHERN ALASKA: INBOARD, OUTBOARD, AND IN BETWEEN
ARMSTRONG, Phillip A.1, ARKLE, Jeanette C.1, HAEUSSLER, Peter J.2, PRIOR, Michael G.1 and HARTMAN, Sean1, (1)Geological Sciences, California State University, Fullerton, 800 N. State College Blvd, Fullerton, CA 92834, (2)U.S. Geological Survey, 4210 University Dr, Anchorage, AK 99508, parmstrong@fullerton.edu, parmstrong@fullerton.edu
12
10:50 AM
STRUCTURE OF THE ACTIVELY DEFORMING FOLD-THRUST BELT OF THE ST. ELIAS OROGEN WITH IMPLICATIONS FOR GLACIAL EXHUMATION AND 3D TECTONIC PROCESSES
PAVLIS, Terry, Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79902, CHAPMAN, J.B., Geological Sciences, University of Texas at El Paso, El Paso, TX 79968, BRUHN, Ron, Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112, RIDGWAY, Kenneth, Department of Earth and Atmospheric Sciences, Purdue University, 500 Stadium Mall Drive, West Lafayette, IN 47907, WORTHINGTON, Lindsay Lowe, Department of Geology and Geophysics, Texas A&M University, College Station, TX 77843-3115 and GULICK, Sean P.S., Institute for Geophysics, Univ of Texas at Austin, JJ Pickle Research Campus, Bldg 196 (ROC), 10100 Burnet Rd (R2200), Austin, TX 78758-4445, tlpavlis@utep.edu, tlpavlis@utep.edu
13
11:05 AM
THREE DIMENSIONAL DEFORMATION IN THE EASTERN ST. ELIAS SYNTAXIS
PAVLIS, Gary L.1, PAVLIS, Terry2, HANSEN, Roger3, ELLIOT, Julie3 and BAUER, Mark4, (1)Department of Geological Sciences, Indiana University, Bloomington, IN 47405, (2)Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79902, (3)Geophysical Institute, University of Alaska, Fairbanks, Fairbanks, AK 99775-7320, (4)Dept. of Geological Sciences, Indiana University, Bloomington, IN 47405-1405, pavlis@indiana.edu, pavlis@indiana.edu
14
11:20 AM
PERSISTENTLY HIGH GEOTHERMAL GRADIENT ABOVE THE OKANOGAN DETACHMENT: THERMAL WEAKENING IS A CAUSE BUT NOT TRIGGER OF OROGENIC COLLAPSE
CRIDER, Juliet G., Earth and Space Sciences, University of Washington, Box 351310, Seattle, WA 98195-1310 and CALLAHAN, Owen A., Bureau of Economic Geology, 10100 Burnet Rd, Bld 130, E0630, Austin, TX 78758, juliet.crider@ess.washington.edu, juliet.crider@ess.washington.edu
15
11:35 AM
MIDDLE TO LATE JURASSIC BACK-ARC MAGMATISM IN THE U.S. CORDILLERA: NEW AGE DATA AND TECTONIC IMPLICATIONS
WYLD, Sandra J., N/a, MapTect LLC, 196 Alps Rd, Suite 2 - 168, Athens, GA 30606 and WRIGHT, James E., Department of Geology, University of Georgia, Athens, GA 30602, swyld2@gmail.com, swyld2@gmail.com
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