Rocky Mountain Section - 64th Annual Meeting (911 May 2012)
Session No. 26 Thursday, 10 May 2012
1:30 PM-4:30 PM, Hotel Albuquerque: Alvarado A&B

T9. Cenozoic Landscape Evolution in the Rocky Mountains and Colorado Plateau: Deciphering the Interplay between Mantle Buoyancy and Surface Processes II (GSA Geophysics Division; GSA Quaternary Geology & Geomorphology Division; GSA Sedimentary Geology Division; GSA Structural Geology & Tectonics Division)

Richard A. Young, Andres Aslan, Karl E. Karlstrom and Eric Kirby, Presiding
 Paper #Start Time
26-11:30 PM TESTING THE ARIZONA RIVER HYPOTHESIS: DETRITAL ZIRCON SPECTRA FROM ORTHOQUARTZITE CLASTS IN THE MID-TERTIARY SESPE FORMATION OF COASTAL SOUTHERN CALIFORNIA: WERNICKE, Brian, Division of Geological and Planetary Sciences, California Institute of Technology, Mail Stop 100-23, Pasadena, CA 91125, brian@gps.caltech.edu, RAUB, Timothy D., Department of Earth Sciences, University of St. Andrews, Irvine Building, North Street, St. Andrews, KY16 9AL, United Kingdom, LANDER, E. Bruce, Paleo Environmental Associates, Inc, Altadena, 91001-3205, and GROVER, Jeffrey A., Department of Physical Sciences, Cuesta College, Sasn Luis Obispo, CA 93403-8106
26-21:45 PM EVALUATING EVIDENCE: THE CALIFORNIA/ARIZONA PALEORIVER MODEL FOR AN OLD GRAND CANYON: KARLSTROM, Karl E., Earth and Planetary Science, University of New Mexico, Albuquerque, NM 87131, kek1@unm.edu, LEE, John P., United States Geological Survey, Box 25046, MS 973, Denver, CO 80225, KELLEY, Shari A., New Mexico Bureau of Geology and Mineral Resources, New MexicoTech, 801 Leroy Place, Socorro, NM 87801, and CROW, Ryan, Department of Earth and Planetary Science, Univ of New Mexico, Northrop Hall, Albuquerque, NM 87131
26-32:00 PM MOGOLLON RIM GRAVELS, DETRITAL ZIRCON EVIDENCE FOR NORTH-NORTHWEST-FLOWING EARLY MIOCENE STREAMS DURING EXHUMATION OF THE CHUSKA ERG: POTOCHNIK, Andre R.1, DICKINSON, William R.2, and PECHA, Mark2, (1) 18 E Juniper Ave, Flagstaff, AZ 86001, andrepotochnik@gmail.com, (2) Department of Geosciences, University of Arizona, Tucson, AZ 85721
26-42:15 PM PALEOGENE EMERGENCE OF THE SOUTHWESTERN MARGIN OF THE COLORADO PLATEAU AS A TOPOGRAPHIC BARRIER: EVIDENCE FOR PRE-BASIN AND RANGE, LATE EOCENE(?)-EARLY OLIGOCENE TECTONISM: YOUNG, Richard A., Department of Geological Sciences, State University of New York at Geneseo, 1 College Circle, Geneseo, NY 14454, young@geneseo.edu
26-52:30 PM Paper Withdrawn
 2:45 PM Break
26-63:15 PM EVIDENCE FOR A LATE MIOCENE COLORADO-GUNNISON RIVER SYSTEM IN WESTERN COLORADO: ASLAN, Andres, Department of Physical and Environmental Science, Colorado Mesa University, 1100 North Avenue, Grand Junction, CO 81501, aaslan@coloradomesa.edu, KARLSTROM, Karl E., Earth and Planetary Science, Univ of New Mexico, Northrop Hall, Albuquerque, NM 87131, KIRBY, Eric, Department of Geosciences, Penn State University, University Park, PA 16802, and DONAHUE, Magdalena S., Earth and Planetary Sciences, University of New Mexico, Northrop Hall, MSCO3-2040; 1 University of New Mexico, Albuquerque, NM 87131-0001
26-73:30 PM SPATIAL VARIATION IN GRAND CANYON INCISION: NEW GEOCHRONOLOGY ON RIVER TERRACES AND THE SURPRISE VALLEY LANDSLIDE: CROW, Ryan S.1, KARLSTROM, Karl E.1, CROSSEY, Laura J.1, DARLING, Andy2, POLYAK, Victor J.1, GRANGER, Darryl E.3, and ASMEROM, Yemane1, (1) Earth and Planetary Sciences, University of New Mexico, Albuquerque, NM 87131-0001, rcrow@unm.edu, (2) School of Earth and Space Exploration, Arizona State University, PO Box 871404, Tempe, AZ 85287-1404, (3) Earth and Atmospheric Sciences, Purdue University, West Lafayette, IN 47907
26-83:45 PM PANCHO'S RADICAL RUNUP: NEW INSIGHTS INTO AN UNUSUAL GRAND CANYON LANDSLIDE: WARME, John E.1, HERRING, Alan2, DARLING, Andy3, CROW, Ryan S.4, KARLSTROM, Karl E.4, CROSSEY, Laura J.4, GRANGER, Darryl5, HUNTOON, Peter6, and SAVAGE, Jill7, (1) Geology and Geological Engineering, Colorado School of Mines, Golden, CO 80401, jwarme@mines.edu, (2) Morrison, CO 80465, (3) School of Earth and Space Exploration, Arizona State University, PO Box 871404, Tempe, AZ 85287-1404, (4) Earth and Planetary Science, University of New Mexico, Albuquerque, NM 87131-0001, (5) Earth & Atmospheric Science, Purdue Univ, 550 Stadium Mall Drive, West Lafayette, IN 47907, (6) P. O. Box 60850, Boulder City, NV 8906, (7) Shell Exploration and Production, Denver, CO 80237
26-94:00 PM ABRUPT 17-19 MA MIOCENE VOLCANIC EPISODE ALONG THE HUALAPAI PLATEAU MARGIN IN WESTERN ARIZONA: PROXY FOR THE ONSET OF LOCAL BASIN AND RANGE EXTENSION: DOMINGUEZ, Katherine, SCHARFSCHWERDT, Peter R., GIORGIS, Scott D., and YOUNG, Richard A., Department of Geological Sciences, State University of New York at Geneseo, 1 College Circle, Geneseo, NY 14454, kd5@geneseo.edu
26-104:15 PM CAVES AND KARST PROCESSES, GRAND CANYON, ARIZONA, USA: HILL, Carol A.1, POLYAK, Victor J.1, and BUECHER, Robert H.2, (1) Earth & Planetary Sciences, Univ of New Mexico, 200 Yale Blvd., Northrop Hall, Albuquerque, NM 87131, Carolannhill@aol.com, (2) Cave Research Foundation, 7050 East Kachina Ct, Tucson, AZ 85715

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