2007 GSA Denver Annual Meeting (28–31 October 2007)

Session No. 190
Wednesday, 31 October 2007: 8:00 AM-12:00 PM

T23. Using Geochronology to Build Better Records and Solve Geomorphic and Paleoclimate Questions—Recent Advances and Findings

GSA Quaternary Geology and Geomorphology Division

 

Joel Pederson and Tammy Rittenour, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
1
8:05 AM
RATES OF LATE CENOZOIC LANDSCAPE EVOLUTION CONSTRAINED BY (U-TH)/HE DATING OF CLINKER, POWDER RIVER BASIN, WYOMING AND MONTANA
RIIHIMAKI, Catherine A., Dept. of Geology, Bryn Mawr College, 101 North Merion Ave, Bryn Mawr, PA 19010, REINERS, Peter W., Department of Geosciences, University of Arizona, 1040 E. 4th St, Tucson, AZ 85721 and HEFFERN, Edward L., U.S. Bureau of Land Management, Wyoming State Office, P.O. Box 1828, Cheyenne, WY 82003, criihima@brynmawr.edu, criihima@brynmawr.edu
2
8:20 AM
COSMOGENIC EROSION RATES AND LANDSCAPE EVOLUTION OF THE BLUE RIDGE ESCARPMENT, SOUTHERN APPALACHIAN MOUNTAINS
SULLIVAN, Colleen1, BIERMAN, Paul2, REUSSER, Luke3, PAVICH, Milan4, LARSEN, Jennifer3 and FINKEL, Robert C.5, (1)Geology Department, University of Vermont, 180 Colchester Ave, Delahanty Hall, Burlington, VT 05405, (2)Geology Department and School of Natural Resources, University of Vermont, Burlington, VT 05405, (3)Department of Geology, University of Vermont, Delehanty Hall, 180 Colchester Ave, Burlington, VT 05405, (4)U.S. Geological Survey, 12201 Sunrise Valley Drive, Reston, VA 20192, (5)Lawrence Livermore National Laboratory, Livermore, 94550, colleen.sullivan@uvm.edu, colleen.sullivan@uvm.edu
3
8:35 AM
A GEOCHRONOLOGIC GLIMPSE INTO HOW ANCIENT MOUNTAIN RANGES ERODE
BIERMAN, Paul1, DUXBURY, Jane2, JUNGERS, Matthew2, REUSSER, Luke2, REUTER, Joanna2, SULLLIVAN, Colleen2, LARSEN, Jennifer2, PAVICH, Milan3 and FINKEL, Robert4, (1)Geology Department, University of Vermont, Delehanty Hall, 180 Colchester Avenue, Burlington, VT 05405, (2)Department of Geology, University of Vermont, Delehanty Hall, 180 Colchester Ave, Burlington, VT 05405, (3)U.S. Geological Survey, 12201 Sunrise Valley Drive, Reston, VA 20192, (4)Lawrence Livermore National Laboratories, Center for Accelerator Mass Spectrometry, Livermore, CA 94550, lreusser@uvm.edu, lreusser@uvm.edu
4
8:55 AM
EROSION RATES IN THE ATACAMA DESERT, NORTHERN CHILE (~24°S) FROM MULTIPLE COSMOGEIC NUCLIDES
PLACZEK, Christa J., Clean Chemistry Team 
Nuclear and Radiochemistry, C-NR, 
Los Alamos National Laboratory, MS-J514, Los Alamos, NM 87545, MATMON, Ari, The Fredy and Nadine Herrmann Institute of Earth Sciences, Hebrew University, Givat Ram, Jerusalem, 91904, Israel, GRANGER, Darryl, Earth and Atmospheric Sciences, Purdue Univ, 550 Stadium Mall Drive, West Lafayette, IN 47907, QUADE, Jay, Department of Geosciences, University of Arizona, Tucson, AZ 85721 and CAFFEE, M.W., Department of Physics, Purdue University, 525 Northwestern Ave, W. Lafayette, IN 47907-1396, cplaczek@lanl.gov, cplaczek@lanl.gov
5
9:10 AM
TIMING OF FORMATION OF GRAND CANYON FROM U-PB DATES ON GROUNDWATER-TABLE SPELEOTHEMS
POLYAK, Victor J.1, HILL, Carol A.1 and ASMEROM, Yemane2, (1)Earth & Planetary Sciences, University of New Mexico, 200 Yale Blvd., Northrop Hall, Albuquerque, NM 87131, (2)Earth & Planetary Sciences, University of New Mexico, Albuquerque, NM 87131, polyak@unm.edu, polyak@unm.edu
6
9:25 AM
CONTINENTAL EROSION AT MILLENNIAL TIMESCALES
MCELROY, Brandon, Department of Geology and Geophysics, University of Wyoming, Laramie, WY 82071 and STAIGER, Jane Willenbring, National Center for Earth-surface Dynamics, University of Minnesota, St. Anthony Falls Laboratory, 2 3rd Ave SE, Minneapolis, MN 55414, bmcelroy@uwyo.edu, bmcelroy@uwyo.edu
7
9:40 AM
ACCEPTING OUR DIFFERENCES: THE POWER OF AMALGAMATION AND 10BE AS A GEOMORPHIC TRACER FOR HILLSLOPE SOIL TRANSPORT
JUNGERS, Matthew C.1, BIERMAN, Paul2, MATMON, Ari3, NICHOLS, Kyle K.4, LARSEN, Jennifer1 and FINKEL, Robert C.5, (1)Department of Geology, University of Vermont, Delehanty Hall, 180 Colchester Ave, Burlington, VT 05405, (2)Geology Dept, University of Vermont, 180 Colchester Ave, Burlington, VT 05405, (3)The Fredy and Nadine Herrmann Institute of Earth Sciences, Hebrew University, Givat Ram, Jerusalem, 91904, Israel, (4)Department of Geosciences, Skidmore College, 815 North Broadway, Saratoga Springs, NY 12866, (5)Lawrence Livermore National Laboratory, Livermore, 94550, mjungers@uvm.edu, mjungers@uvm.edu
 
9:55 AM
Break
8
10:10 AM
BE-10/AL-26 ISOCHRON AGES FOR EARLY AND MIDDLE PLEISTOCENE ADVANCES OF THE LAURENTIDE ICE SHEET INTO MISSOURI
BALCO, Greg, Department of Earth and Space Sciences, University of Washington, Box 351310, Seattle, WA 98195-1310 and ROVEY, Charles, Geography, Geology, and Planning Department, Missouri State University, 901 S. National Ave, Springfield, MO 65804-0089, balcs@u.washington.edu, balcs@u.washington.edu
9
10:30 AM
NEW COSMOGENIC 10BE EXPOSURE AGE CHRONOLOGY FOR PAYETTE MORAINES, CENTRAL IDAHO, USA
PHILLIPS, William M.1, BRECKENRIDGE, Roy M.2, OTHBERG, Kurt L.2 and GARWOOD, Dean L.1, (1)Idaho Geological Survey, University of Idaho, PO Box 443014, Moscow, ID 83844-3014, (2)Idaho Geological Survey, University of Idaho, PO BOX 443014, Moscow, ID 83844-3014, phillips@uidaho.edu, phillips@uidaho.edu
10
10:45 AM
CROSS-CUTTING MORAINES, BIG YOUNG ICE, AND THE PRESERVATION OF MULTIPLE LATE QUATERNARY GLACIATIONS IN THE SOUTHERNMOST CORDILLERA BLANCA, PERU
SMITH, Jacqueline A., Physical & Biological Sciences, The College of Saint Rose, 432 Western Avenue, Albany, NY 12203, RODBELL, Donald T., Geology, Union College, Schenectady, NY 12308-3107 and RAMAGE, Joan, Earth and Environmental Sciences, Lehigh University, 31 Williams Drive, Bethlehem, PA 18015, smithj@strose.edu, smithj@strose.edu
11
11:00 AM
THE EXTENT AND TIMING OF A PRE-LATE WISCONSINAN ICE MARGIN IN CENTRAL INDIANA: A NEW VIEW FROM GLACIAL-LACUSTRINE SEDIMENTS FROM PORTER CAVE
FORMAN, Steven L.1, WOOD, John R.1 and EVERTON, David2, (1)Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, IL 60607, (2)Indiana Cave Survey, P.O. Box 2401, Indianapolis, IN 46206-2401, slf@uic.edu, slf@uic.edu
12
11:20 AM
IMPACT OF CLIMATIC CHANGE ON AN ARID WATERSHED: NAHAL YAEL, ISRAEL: EVALUATING BULL AND SCHICK¢S 1979 MODEL WITH NEW FIELD DATA AND IRSL AGES FROM NAHAL YAEL
ENZEL, Yehouda1, AMIT, Rivka2, LEKACH, Judith3, PORAT, Naomi2, GRODEK, Tamir3, BIERMAN, Paul4 and EREL, Yigal5, (1)Institute of Earth Sciences, Hebrew University, Givat Ram, Jerusalem, 91904, Israel, (2)Geological Survey of Israel, 30 Malkhe Israel St, Jerusalem, 95501, Israel, (3)Geography, Hebrew University, Jerusalem, 91905, Israel, (4)Geology Department, University of Vermont, Delehanty Hall, 180 Colchester Avenue, Burlington, VT 05405, (5)The Fredy and Nadine Herrmann Institute of Earth Sciences, Hebrew University, Givat Ram, Jerusalem, 91904, Israel, yenzel@vms.huji.ac.il, yenzel@vms.huji.ac.il
13
11:35 AM
GEOCHRONOLOGIC AND GEOMORPHIC EVIDENCE FOR STREAM TERRACE REOCCUPATION ALONG THE LARAMIE RANGE, WYOMING
HANSON, Paul R., Conservation and Survey Division, School of Natural Resources, Univ. of Nebraska, 612 Hardin Hall, Lincoln, NE 68583-0996, phanson2@unl.edu, phanson2@unl.edu
See more of: Technical Sessions