Session: Structural Geology: Advances in Understanding Deformational Processes Ancient and Modern (2009 Portland GSA Annual Meeting (18-21 October 2009))

Paper #

Start Time

1

8:00 AM

PARTITIONING OF TRICLINIC DEFORMATION IN A HIGH-STRAIN ZONE INTO MONOCLINIC AND ORTHORHOMBIC DEFORMATION DOMAINS: AN EXAMPLE FROM THE SUPERIOR BOUNDARY ZONE, MANITOBA, CANADA

KUIPER, Yvette D., Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401, LIN, Shoufa, Department of Earth and Environmental Sciences, University of Waterloo, Waterloo, ON N2L 3G1, Canada and JIANG, Dazhi, Department of Earth Sciences, Western University, London, ON N6A 5B7, Canada, ykuiper@mines.edu, ykuiper@mines.edu

2

8:15 AM

PETROPHYSICALLY SELECTIVE COMPACTION BANDS IN NAVAJO SANDSTONE

FOSSEN, Haakon¹, SCHULTZ, Richard A.², TORABI, Anita³ and TVERANGER, Jan³, (1)Department of Earth Science, University of Bergen, Allegaten 41, Bergen, 5007, Norway, (2)ConocoPhillips, 600 N Dairy Ashford, PR-2010, Houston, TX 77079, (3)Center for Integrated Petroleum Research, University of Bergen, Allégaten 41, Bergen, 5007, Norway, haakon.fossen@geo.uib.no, haakon.fossen@geo.uib.no

3

8:30 AM

Withdrawn

4

8:45 AM

QUANTIFYING THE EFFECTS OF A WEAK PHASE ON THE RHEOLOGY OF NATURALLY DEFORMED, POLYPHASE ROCKS OF THE MOUNT ISA INLIER, QUEENSLAND, AUSTRALIA

EARNEST HECKLER, Evan James, Department of Geoscience, University of Wisconsin, Madison, 1215 West Dayton St, Madison, WI 53706, GOODWIN, Laurel B., Dept. of Geology & Geophysics, Univ. of Wisconsin, Madison, WI 53706, TIKOFF, Basil, Department of Geoscience, University of Wisconsin Madison, 1215 W. Dayton St, Madison, WI 53706 and BLENKINSOP, Thomas G., School of Earth & Environmental Sciences, James Cook University, Townsville, 4811, Australia, earnestheckl@wisc.edu, earnestheckl@wisc.edu

5

9:00 AM

TABULAR FRACTURE CLUSTERS, SIERRA NEVADA BATHOLITH, CALIFORNIA

RILEY, Paul, The Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53706 and TIKOFF, Basil, Department of Geoscience, University of Wisconsin Madison, 1215 W. Dayton St, Madison, WI 53706, priley@geology.wisc.edu, priley@geology.wisc.edu

6

9:15 AM

FORMATION OF CRENULATION CLEAVAGE AND DOWN-DIP-VERGING FOLDS DURING THE COLLAPSE OF FOLD-THRUST BELTS: EXAMPLES FROM BARABOO (WISCONSIN, USA) AND FROM A BRASILIANO OROGEN (MINAS GERAIS, BRAZIL)

MARSHAK, Stephen, Dept. of Geology, Univ. of Illinois, 1301 W. Green St, Urbana, IL 61801, DEFRATES, Joshua, Dept. of Geology, Univ of Illinois, 1301 W. Green St, Urbana, IL 61801 and ALKMIM, Fernando F., Dept. de Geologia, Escola de Minas, Univ. Federal de Ouro Preto, Morro do Cruzeiro, Ouro Preto, 35400.000, Brazil, smarshak@illinois.edu, smarshak@illinois.edu

7

9:30 AM

FOLD MECHANISMS AND DISHARMONY IN "ZEUS" ANTICLINE, MT. LYKAION, PELOPONESSOS, GREECE

DAVIS, George H., Department of Geosciences, The University of Arizona, Gould-Simpson 326, Tucson, AZ 85721, gdavis@email.arizona.edu, gdavis@email.arizona.edu

9:45 AM

Break

8

10:00 AM

DILIGENCIA BASIN (SOUTHERN CALIFORNIA) REVISITED: SEDIMENTATION IN HALF GRABEN BOUNDED ON THE NORTHEAST BY NORMAL FAULT

INGERSOLL, Raymond V., Earth, Planetary, and Space Sciences, University of California, Los Angeles, CA 90095-1567, ringer@ess.ucla.edu, ringer@ess.ucla.edu

9

10:15 AM

MIOCENE SEDIMENTATION NEAR THE LOST BASIN RANGE AND INITIATION OF WHEELER FAULT SYSTEM EASTERN LAKE MEAD, ARIZONA: 15 MA DISRUPTION OF THE FOOTWALL OF THE SOUTH VIRGIN – WHITE HILLS DETACHMENT FAULT

UMHOEFER, Paul J., School of Earth Sciences & Environmental Sustainability, Northern Arizona University, 625 Knoles Drive, Box 4099, Flagstaff, AZ 86011, DUEBENDORFER, Ernest, School of Earth Sciences and Environmental Sustainability, Northern Arizona University, Flagstaff, AZ 86011, BLYTHE, Nathan, Marathon Oil Co, 5555 San Felipe, Houston, TX 77056, SWANEY, Zack, ConocoPhillips, 3200 Wilcrest Dr, Houston, TX 77042, BEARD, L. Sue, U.S. Geological Survey, 2255 N Gemini Dr, Flagstaff, AZ 86001-1637 and MCINTOSH, William, New Mexico Bureau of Geology and Mineral Resources, New Mexico Tech, 801 Leroy Place, Socorro, NM 87801, paul.umhoefer@nau.edu, paul.umhoefer@nau.edu

10

10:30 AM

TIMING RELATIONS BETWEEN THE SOUTH FORK AND HEART MOUNTAIN FAULT SYSTEMS WITH IMPLICATIONS FOR EMPLACEMENT, WYOMING, USA

CLAREY, Timothy L., Geology Department, Delta College, 1961 Delta Road, University Center, MI 48710, tlclarey@delta.edu, tlclarey@delta.edu

11

10:45 AM

DUPLEXES, CLIMBING IMBRICATES, AND TRIANGLE ZONES IN RESPONSE TO CHANGING COMPRESSION DIRECTIONS AROUND THE BEND OF THE VALLEY-AND-RIDGE IN CENTRAL PENNSYLVANIA

WASHINGTON, Paul A., Salona Exploration LLC, Mill Hall, PA 17751, paul.washington@gmail.com, paul.washington@gmail.com

12

11:00 AM

FOLD AND SHEAR ZONE DEVELOPMENT WITHIN THE EVAPORITE DéCOLLEMENT OF THE SIERRA MADRE ORIENTAL FOLD BELT, NORTHEASTERN MEXICO

CROSS, Gareth E., Department of Geological Sciences, The University of Texas at Austin, 1 University Station C1100, Austin, TX 78712 and MARRETT, Randall, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712, gecross@mail.utexas.edu, gecross@mail.utexas.edu

13

11:15 AM

ANALYSIS OF MECHANICAL STRATIGRAPHY AND STRUCTURAL ARCHITECTURE OF THE GILEAD CREEK AREA, NORTHEASTERN BROOKS RANGE, ALASKA

SPEETER, Garrett and WALLACE, Wesley K., Geology and Geophysics, University of Alaska Fairbanks, 900 Yukon Drive, Fairbanks, AK 99775, garrett.speeter@alaska.gov, garrett.speeter@alaska.gov

14

11:30 AM

NEOTECTONIC EVALUATION OF SEISMIC HAZARD ALONG THE RUATANIWHA FAULT, DANNEVIRKE REGION, NEW ZEALAND

KLOS, P. Zion, Geology, Colorado College, 14 E. Cache la Poudre Ave, Colorado Springs, CO 80903, LANGRIDGE, Robert, Seismic Hazards, GNS Science, Lower Hutt, 5040, New Zealand and SIDDOWAY, Christine S., Geology Department, Colorado College, Colorado Springs, CO 80903, zion.klos@coloradocollege.edu, zion.klos@coloradocollege.edu

15

11:45 AM

INTERACTION OF TERTIARY DEEP-WATER DEPOSITIONAL SYSTEMS WITH ACTIVELY EVOLVING STRUCTURES - PALEOGEOGRAPHY OF THE LOWER CONGO BASIN, OFFSHORE ANGOLA

ANDERSON, Arlene V., SICKAFOOSE, D.K., FAHRER, T.R. and GOTTSCHALK, R.R., ExxonMobil Exploration Company, 233 Benmar, Houston, TX 77060, arlene.v.anderson@exxonmobil.com, arlene.v.anderson@exxonmobil.com