GSA Annual Meeting, November 5-8, 2001

Session No. 108
Wednesday, 7 November 2001: 8:00 AM-12:00 PM

Tectonics I: Thermochronology- Tectonic Controls on Landscape Evolution

 

Mary Hubbard and Matthew Rioux, Chairs
Paper #
Start Time
0
8:00 AM
UNDERSTANDING ISLAND ARC THERMAL STRUCTURE THROUGH U-PB AND 40AR-39AR GEOCHRONOLOGY OF THE TALKEETNA ARC SECTION, SOUTH-CENTRAL ALASKA
RIOUX, Matthew1, MEHL, Luc2, HACKER, Bradley1, MATTINSON, James1 and WOODEN, Joseph L.3, (1)Geological Sciences, Univ of California, Santa Barbara, CA 93106, (2)Geological Sciences, University of California, Santa Barbara, CA 93106, (3)USGS-SUMAC, Rm. 89, Ion Probe Lab, Green Building, 367 Panama Street, Stanford, CA 94305, rioux@geology.ucsb.edu, rioux@geology.ucsb.edu
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8:15 AM
OLIGOCENE-MIOCENE BASIN FORMATION AND MODIFICATION IN THE NORTHERN RIO GRANDE RIFT; CONSTRAINTS FROM 40AR/39AR, FISSION TRACK, AND TEPHROCHRONOLOGY
HUBBARD, Mary S.1, OVIATT, Charles G.1, KELLEY, Shari2, PERKINS, Michael E.3, HODGES, Kip V.4 and ROBBINS, Rebecca1, (1)Kansas State Univ, 108 Thompson Hall, Manhattan, KS 66506-3201, (2)Dept. of Earth and Environmental Science, New Mexico Institute of Mining and Technology, Socorro, NM 87801, (3)Department of Geology and Geophysics, Univ of Utah, Salt Lake City, UT 84112, (4)EAPS, MIT, Cambridge, MA 02139, mhub@ksu.edu, mhub@ksu.edu
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8:30 AM
IMPLICATIONS OF PRELIMINARY (U-TH)/HE COOLING AGES AND U/PB CRYSTALLIZATION AGES FROM THE CENTRAL ALBORZ MOUNTAINS, IRAN
AXEN, Gary J.1, STOCKLI, Daniel2, LAM, Patrick1, GUEST, Bernard3 and HASSANZADEH, Jamshid4, (1)Dept. Earth & Space Sciences, Univ. of California, Los Angeles, CA 90095-1567, (2)Department of Geology, University of Kansas, Lawrence, KS 66045, (3)Dept. Earth & Space Sciences, Univ. of California - Los Angeles, Los Angeles, CA 90095, (4)Department of Geology, Univ of Tehran, PO Box 14155-6466, Tehran, Iran, gaxen@ess.ucla.edu, gaxen@ess.ucla.edu
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8:45 AM
APATITE (U-TH)/HE AND FISSION TRACK DATA FROM THE CARSON RANGE, NEVADA: IMPLICATIONS FOR NORMAL FAULTING IN THE LAKE TAHOE AREA
STOCKLI, Daniel F., Dept. of Geology, University of Kansas, Lawrence, KS 66045 and SURPLESS, Benjamin E., Dept. of Geol. and Envir. Sci, Stanford Univ, Stanford, CA 94305, stockli@ku.edu, stockli@ku.edu
0
9:00 AM
TIMING OF EXHUMATION OF THE WALLOWA MOUNTAINS, NE OREGON: A U-TH/HE THERMOCHRONOLOGIC STUDY
CROWLEY, Peter D., Dept. of Geology, Amherst College, Amherst, MA 01002 and REINERS, Peter W., Dept. of Geology and Geophysics, Yale University, P.O. Box 208109, New Haven, CT 06520, pdcrowley@amherst.edu, pdcrowley@amherst.edu
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9:15 AM
EXHUMATION OF APATITE HE PARTIAL RETENTION ZONES: AN EXAMPLE FROM THE TRANSANTARCTIC MOUNTAINS AND IMPLICATIONS FOR (U-TH)/HE DATING OF APATITES
FITZGERALD, Paul G.1, BALDWIN, Suzanne L.1, FARLEY, Ken A.2, HEDGES, Lindsey2, O'SULLIVAN, Paul B.1 and WEBB, Laura E.1, (1)Earth Sciences, Syracuse Univ, Syracuse, NY 13244-1070, (2)Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, pgfitzge@syr.edu, pgfitzge@syr.edu
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9:30 AM
FISSION-TRACK EVIDENCE OF LATE TERTIARY COOLING AND INCISION OF THE WIND RIVER BASIN, WYOMING
BELAND, Peter E., Department of Geology and Geophysics, Univ of Wyoming, P. O. Box 3006, Laramie, WY 82071, MURPHY, John M., Department of Geology and Geophysics, Univ of Wyoming, P. O. 3006, Laramie, WY 82071, MCMILLAN, Margaret E., Department of Geology and Geophysics, Univ of Wyoming, P.O. Box 3006, Laramie, WY 82071 and HELLER, Paul L., Department of Geology and Geophysics, Univ of Wyoming, PO Box 3006, Laramie, WY 82071, pebeland@uwyo.edu, pebeland@uwyo.edu
0
10:00 AM
PATTERN OF LATE CENOZOIC INCISION OF THE ROCKY MOUNTAINS AND IMPLICATIONS FOR EVALUATING TECTONIC AND CLIMATIC CONTROLS
MCMILLAN, Margaret E., Department of Geology and Geophysics, Univ of Wyoming, P.O. Box 3006, Laramie, WY 82071 and HELLER, Paul L., Department of Geology and Geophysics, Univ of Wyoming, PO Box 3006, Laramie, WY 82071, mcmillan@uwyo.edu, mcmillan@uwyo.edu
 
9:45 AM
Break
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10:15 AM
THE INFLUENCE OF HIGH-ANGLE BRITTLE FAULTING ON SUBSEQUENT LANDSCAPE DEVELOPMENT IN EXTENSIONAL TERRANES
PAZZAGLIA, Frank J.1, SELVERSTONE, Jane2, ROY, Mousumi2, STEFFEN, Kurt2, PEARCE, Justin1, NEWLAND, Sarah1 and KNIPSHER, William1, (1)Dept. of Earth and Environmental Sciences, Lehigh Univ, 31 Williams Dr, Bethlehem, PA 18015-3188, (2)Department of Earth and Planetary Sciences, Univ of New Mexico, 141 Northrop Hall, Albuquerque, NM 87131, fjp3@lehigh.edu, fjp3@lehigh.edu
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10:30 AM
RECENT DEFORMATION ALONG THE RED RIVER FAULT AS CONSTRAINED BY RIVER INCISION INTO A LOW RELIEF RELICT LANDSCAPE, YUNNAN, CHINA
SCHOENBOHM, Lindsay M., Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Rm. 54-1020, MIT, Cambridge, MA 02139, WHIPPLE, Kelin X., Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Rm. 54-1016, MIT, Cambridge, MA 02139 and BURCHFIEL, B. Clark, Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Rm. 54-1010, MIT, Cambridge, MA 02139, schoenbl@mit.edu, schoenbl@mit.edu
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10:45 AM
USING DETRITAL ZIRCON FISSION-TRACK AGES AS A PROXY FOR LONG-TERM EXHUMATION OF MOUNTAIN BELTS
BERNET, Matthias1, GARVER, John2 and BRANDON, Mark1, (1)Geology and Geophysics, Yale Univ, PO Box 208109, New Haven, CT 06520-8109, (2)Geology Department, Union College, Olin Building, Schenectady, NY 12308-2311, matthias.bernet@yale.edu, matthias.bernet@yale.edu
0
11:00 AM
PRELIMINARY SEDIMENTARY-TECTONIC HISTORY AND AR/AR AGES FROM THE “NEOGENE” REDBEDS, TALEGHAN VALLEY, ALBORZ MOUNTAINS, IRAN
GUEST, Bernard1, AXEN, Gary J.1, HASSANZADEH, Jamshid2, CUMMINGS, Deanna3 and MCINTOSH, William4, (1)Univ California - Los Angeles, Dept Earth & Space Sciences, Los Angeles, CA 90098, (2)Department of Geology, Univ of Tehran, PO Box 14155-6466, Tehran, Iran, (3)Dept. of Geological Sciences, California State Univ, Long Beach, CA 90840, (4)Dept. of Geoscience, New Mexico Inst. of Mining and Technology, Socorro, NM 87801, bguest@ess.ucla.edu, bguest@ess.ucla.edu
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11:15 AM
MULTIPLE ISOTOPE COSMOGENIC PALEOALTIMETRY
LIBARKIN, J. C., Science Education Department, Harvard College Observatory, 60 Garden St. MS-71, Cambridge, MA 02138, jlibarki@cfa.harvard.edu, jlibarki@cfa.harvard.edu
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11:30 AM
USING ISOTOPE PALEOHYDROLOGY TO CONSTRAIN THE AGE OF THE UPLIFT OF THE TIBETAN PLATEAU: THE VIEW FROM THE NORTHEAST
DETTMAN, David L.1, FANG, Xiaomin2, SONG, Chunhui3, GARZIONE, Carmala N.4, LI, Jijun5 and FAN, Majie3, (1)Geosciences, Univ of Arizona, 1040 E 4th St, Tucson, AZ 85721-0077, (2)State Key laboratory of Loess and Quaternary Geology, Institute of Earth and Environ, Chinese Academy of Sci, 10 Fenghui Nan Rd., Xi'an High-tech zone, Xi'an, 710075, China, (3)Department of Geology, Lanzhou Univ, Lanzhou, 730000, China, (4)Department of Earth and Environmental Sciences, Univ of Rochester, Rochester, NY 14627, (5)Dept. of Geography, Univ of Lanzhou, Lanzhou, Gansu, 730000, China, dettman@geo.arizona.edu, dettman@geo.arizona.edu
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11:45 AM
THE MORONI FORMATION: IMPLICATIONS FOR MID-TERTIARY PALEOTOPOGRAPHY
ALBRECHT, Jessica L., Geology and Environmental Geosciences, Northern Illinois Univ, 312 Davis Hall, DeKalb, IL 60115-2854, ELLIOT, David H., Geological Sciences, The Ohio State Univ, 125 S. Oval Mall, Columbus, OH 43210-1308 and FOLAND, Kenneth A., Department of Geological Sciences, Ohio State Univ, 125 South Oval, Columbus, OH 43210, albrecht@geol.niu.edu, albrecht@geol.niu.edu