Session: GSA: Active Tectonics of the Northern Cordillera (Posters) (102nd Annual Meeting of the Cordilleran Section, GSA, 81st Annual Meeting of the Pacific Section, AAPG, and the Western Regional Meeting of the Alaska Section, SPE (8

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16

RESPONSE OF GROUNDWATER WELLS IN ALASKA TO NEAR AND DISTANT LARGE EARTHQUAKES

SIL, Samik and FREYMUELLER, Jeffrey T., Geology Geophysics, University of Alaska Fairbanks, UAF PO Box 750573, Fairbanks, AK 99775, ftss@uaf.edu, ftss@uaf.edu

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17

USING GPS TO UNRAVEL THE TECTONICS OF THE SAINT ELIAS OROGEN, ALASKA

ELLIOTT, Julie, FREYMUELLER, Jeffrey T. and LARSEN, Christopher F., Geophysical Institute, University of Alaska Fairbanks, 903 Koyukuk Drive, Fairbanks, AK 99775, julie@giseis.alaska.edu, julie@giseis.alaska.edu

3

18

ACTIVE DEFORMATION AND ALONG STRIKE VARIATION IN STRUCTURAL STYLE WITHIN THE YAKUTAT TERRANE, SAINT ELIAS MOUNTAINS, ALASKA

VORKINK, Michael, Salt lake City, UT 84112 and CHAPMAN, Jay, Geology and Geophysics, University of New Orleans, New Orleans, LA 70148, jchapman@uno.edu, jchapman@uno.edu

4

19

GEOLOGIC HISTORY OF THE YAKUTAT TERRANE BASED ON DETRITAL ZIRCON FISSION-TRACK ANALYSIS, SOUTHERN ALASKA

PERRY, Stephanie E., Geology, SUNY Albany, ES 339c, Department of Earth Sciences, Albany, NY 12222, GARVER, John I., Geology Department, Union College, Union College, Olin Building, Schenectady, NY 12308-2311, RIDGWAY, Kenneth D., Earth and Atmospheric Sciences, Purdue University, 550 Stadium Hall Drive, West Lafayette, IN 47907-2051, SPOTILA, James, Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24060 and LANDIS, Paul, Dept. Earth and Atmospheric Sciences, Purdue University, West Lafayette, IN 47907, sp892967@albany.edu, sp892967@albany.edu

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20

HISTORIC AND PALEOSEISMIC EVIDENCE FOR NON-CHARACTERISTIC EARTHQUAKES AND THE SEISMIC CYCLE AT THE DELTA RIVER CROSSING OF THE DENALI FAULT, ALASKA

PLAFKER, George, U.S. Geological Survey (Emeritus), 345 Middlefield Road, Menlo Park, CA 94025, CARVER, Gary, Dept. of Geology, Humboldt State University (Emeritus), P.O. Box 52, Kodiak, AK 99615, CLUFF, Lloyd, Geosciences Department, Pacific Gas & Electric Company, P.O. Box 770000, San Francisco, CA 94177 and METZ, Mike, M.C. Metz & Associates, 861 W. North Links, Washington, UT 84780, george@plafker.com, george@plafker.com

6

21

LATE NEOTECTONIC EVOLUTION OF CENTRAL ALASKA, AND A REINTERPRETATION OF THE DENALI FAULT SYSTEM

BREASE, Phillip¹, CSEJTEY, Bela², WRUCKE, Chet² and FORD, Art², (1)Resources, National Park Service - Denali NP, PO Box 9, Denali Park, AK 99743, (2)Denali Associates, 3805 Carlson Circle, Palo Alto, CA 94306, phil_brease@nps.gov, phil_brease@nps.gov

7

22

DIFFERENCES IN AVERAGE SLOPE ANGLES AS EVIDENCE OF VARYING UPLIFT RATES IN THE EASTERN ALASKA RANGE

BENOWITZ, J.A., Geology, University of Alaska Fairbanks, Fairbanks, AK 99775, ftjab@uaf.edu, ftjab@uaf.edu

8

23

ACTIVE TECTONICS OF THE SUSITNA RIVER BASIN, ALASKA - INTRAPLATE DEFORMATION DRIVEN BY MICROPLATE COLLISION AND SUBDUCTION

WILLIS, Julie B., Geology, BYU-Idaho, 525 South Center, Rexburg, ID 83460 and BRUHN, Ronald L., Geology and Geophysics, Univ of Utah, 135 S 1460 E RM 716, Salt Lake City, UT 84112-0111, willisj@byui.edu, willisj@byui.edu

9

24

SYNCHRONOUS EXHUMATION OF THE TORDRILLO MOUNTAINS AND MT. MCKINLEY (DENALI), ALASKA, AROUND 6 MA

HAEUSSLER, Peter J., U.S. Geological Survey, 4200 University Dr, Anchorage, AK 99508 and O'SULLIVAN, Paul B., Apatite to Zircon, Inc, 1075 Matson Rd, Viola, ID 83872-9709, pheuslr@usgs.gov, pheuslr@usgs.gov

10

25

THE RELATION OF SEISMICITY TO UPPER AND LOWER PLATE STRUCTURE OF THE SOUTH-CENTRAL ALASKA SUBDUCTION ZONE

DOSER, Diane I.¹, VEILLEUX, Annette M.² and DE LA PENA, Alejandro², (1)Geological Sciences, Univ of Texas at El Paso, 500 W. University, El Paso, TX 79968, (2)Department of Geological Sciences, Univ of Texas at El Paso, University Avenue, El Paso, TX 79968, doser@geo.utep.edu, doser@geo.utep.edu

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26

AN ATTEMPT AT MASS BALANCING VOLUME OF EXHUMED ROCK FROM THE CENTRAL AND WESTERN ALASKA RANGE WITH THE VOLUME OF PLIOCENE AND QUATERNARY SEDIMENTS DEPOSITED IN BASINS OF SOUTH-CENTRAL ALASKA

MCGILL, Avery, Environmental Studies, Prescott College, 220 Grove Avenue, Prescott, AZ 86301 and HAEUSSLER, Peter J., U.S. Geological Survey, 4210 University Dr, Anchorage, AK 99508, averymc@gmail.com, averymc@gmail.com

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27

BUILDING A GEODYNAMIC MODEL OF ALASKA

JADAMEC, Margarete A.¹, BILLEN, Magali I.² and ROESKE, Sarah M.², (1)Geology Department, Univ. California Davis, One Shields Ave, Davis, CA 95616, (2)Geology Department, Univ. California Davis, One Shields Avenue, Davis, CA 95616, jadamec@geology.ucdavis.edu, jadamec@geology.ucdavis.edu

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28

QUATERNARY DEFORMATION OF THE PORTLAND HILLS, OREGON – CONSTRAINTS FROM THE LIGHT RAIL TUNNEL

WELLS, Ray E.¹, WALSH, Ken², BEESON, Marvin², FLECK, Robert³, DUVALL, Alison⁴ and TOLAN, Terry⁵, (1)U.S. Geol Survey, 345 Middlefield Road, Menlo Park, CA 94025, (2)(deceased) Department of Geology, Portland State University, P.O. Box 751, Portland, OR 97207, (3)USGS, 345 Middlefield Rd. MS 973, Menlo Park, CA 94025, (4)USGS, 345 Middlefield Road, Menlo Park, CA 94025, (5)Kennedy/Jenks Consultants, 1020 North Center Parkway, Suite F, Kennewick, WA 99336, rwells@usgs.gov, rwells@usgs.gov

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DEGRADATION OF NORMAL FAULT SCARPS IN BASALT, CENTRAL OREGON AND NORTHERN CALIFORNIA

DAVIS, Kelsay M and CRIDER, Juliet G., Geology Department, Western Washington University, 516 Old Main, Bellingham, WA 98225, willia95@cc.wwu.edu, willia95@cc.wwu.edu

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EARTH SCIENCE COMPUTATIONAL ARCHITECTURE AND ENVIRONMENT FOR SPACE BASED DATA AND MODELING

BLOM, Ronald G., GROSS, Richard, GURROLA, Eric, IVINS, Erik, PARKER, Jay, RAYMOND, Carol, WU, Xiaoping and ZUFFADA, Cinzia, Jet Propulsion Lab, 4800 Oak Grove Dr, Pasadena, CA 91109-8001, ronald.blom@jpl.nasa.gov, ronald.blom@jpl.nasa.gov

102nd Annual Meeting of the Cordilleran Section, GSA, 81st Annual Meeting of the Pacific Section, AAPG, and the Western Regional Meeting of the Alaska Section, SPE (8–10 May 2006)

T4. GSA: Active Tectonics of the Northern Cordillera (Posters)