Session No. 108 Wednesday, November 7, 2001

8:00 AM-12:00 PM, Hynes Convention Center: 302
Tectonics I: Thermochronology- Tectonic Controls on Landscape Evolution
Mary Hubbard and Matthew Rioux, Presiding
 Paper #Start Time
108-08:00 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 L3, (1) Geological Sciences, Univ of California, Santa Barbara, CA 93106, rioux@geology.ucsb.edu, (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
108-08:15 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, mhub@ksu.edu, (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
108-08:30 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, gaxen@ess.ucla.edu, (2) Dept. of Geology, Univ. 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
108-08:45 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, stockli@ku.edu and SURPLESS, Benjamin E., Dept. of Geol. and Envir. Sci, Stanford Univ, Stanford, CA 94305
108-09:00 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, pdcrowley@amherst.edu and REINERS, Peter W., Dept. of Geology and Geophysics, Yale University, P.O. Box 208109, New Haven, CT 06520
108-09:15 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, pgfitzge@syr.edu, (2) Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125
108-09:30 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, pebeland@uwyo.edu, 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
 9:45 AM Break
108-010:00 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, mcmillan@uwyo.edu and HELLER, Paul L., Department of Geology and Geophysics, Univ of Wyoming, PO Box 3006, Laramie, WY 82071
108-010:15 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, fjp3@lehigh.edu, (2) Department of Earth and Planetary Sciences, Univ of New Mexico, 141 Northrop Hall, Albuquerque, NM 87131
108-010:30 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, schoenbl@mit.edu, 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
108-010:45 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, matthias.bernet@yale.edu, (2) Geology Department, Union College, Olin Building, Schenectady, NY 12308-2311
108-011:00 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, bguest@ess.ucla.edu, (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
108-011:15 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.
108-011:30 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, Jijun2, and FAN, Majie3, (1) Geosciences, Univ of Arizona, 1040 E 4th St, Tucson, AZ 85721-0077, dettman@geo.arizona.edu, (2) Dept. of Geography, Univ of Lanzhou, Lanzhou, Gansu, 730000, China, (3) Department of Geology, Lanzhou Univ, Lanzhou, 730000, China, (4) Department of Earth and Environmental Sciences, Univ of Rochester, Rochester, NY 14627
108-011:45 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, albrecht@geol.niu.edu, 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

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