Session No. 11 Wednesday, May 8, 2002

8:00 AM-12:00 PM, Sharwan Smith Center: Theater
S4. P3: Proterozoic Paleogeography and Paleoclimate
Paul Karl Link and Carol M. Dehler, Presiding
Start Time
8:00 AM Introductory Remarks
8:10 AM PALEOPROTEROZOIC SUTURES: NE SIBERIA-SW LAURENTIA LINKS?: SEARS, James W., Geology Department, Univ of Montana, Missoula, MT 59812, jwsears@selway.umt.edu, CHAMBERLAIN, Kevin R., Department of Geology and Geophysics, Univ of Wyoming, Laramie, WY 82071-3006, and PRICE, Raymond A., Department of Geological Sciences and Geological Engineering, Queen's Univeristy, Kingston, ON K7L 3N6, Canada
8:30 AM SHEETFLOODS ACCOMPANIED ARIDITY IN THE MIDDLE PROTEROZOIC BELT BASIN, MONTANA: WINSTON, Don, Geology Department, Univ. of Montana, Missoula, MT 59812, winston@selway.umt.edu.
8:50 AM SUBDIVISIONS OF THE MESOPROTEROZOIC YELLOWJACKET FORMATION AND HOODOO QUARTZITE, SALMON RIVER MOUNTAINS, CENTRAL IDAHO: LINK, Paul K., Geosciences, Idaho State Univ, P.O. Box 8072, Pocatello, ID 83209, linkpaul@isu.edu, WINSTON, Don, Geology Department, Univ. of Montana, Missoula, MT 59812, and LEWIS, Reed S., Idaho Geol. Survey, Univ. of Idaho, Moscow, ID 83844-3014
9:05 AM STRATIGRAPHY, PALYNOLOGY, AND MATURITY OF THE PROTEROZOIC UINTA MOUNTAIN GROUP, EASTERN UINTA MOUNTAINS, UTAH—IMPLICATIONS FOR UNIT THICKNESS: SPRINKEL, Douglas A., Utah Geol Survey, PO Box 146100, Salt Lake City, UT 84114, dsprinke.nrugs@state.ut.us, WAANDERS, Gerald, Consulting Palynologist, and ROBBINS, Eleanora I., San Diego State Univ
9:25 AM STRATIGRAPHIC, MINERALOGICAL AND GEOCHEMICAL ANALYSIS OF THE RED PINE SHALE, UINTA MOUNTAIN GROUP, NE UTAH: CROSSEY, Laura J., Dept. of Earth & Planetary Sciences, Univ. of New Mexico, Albuquerque, NM 87131, lcrossey@unm.edu, DEHLER, Carol M., Department of Geology, Utah State Univ, 4505 Old Main Hill, Logan, UT 84322-4505, BLOCH, John D., Dept. of Earth and Planetary Sciences, Univ. of New Mexico, Albuquerque, NM 87131, ATUDOREI, Viorel, Earth & Planetary Sciences, Univ of New Mexico, Northrop Hall, Albuquerque, NM 87131, and DODSON, Crystal L., Dept. of Earth & Planetary Sciences, Univ. of New Mexico, Northrop Hall, Albuquerque, NM 87131
9:40 AM BIOMARKERS IN THE NEOPROTEROZOIC UINTA MOUNTAIN GROUP, COMPARISONS AND INFERENCES ABOUT BIOLOGICAL INPUT: VOGEL, M. B., MOLDOWAN, M., and ZINNIKER, D., Geological and Environmental Sciences, Stanford Univ, Stanford, CA 94022, marilynv@pangea.stanford.edu
10:00 AM Break
10:10 AM LITHOSTRATIGRAPHIC AND CHEMOSTRATIGRAPHIC RELATIONSHIPS IN THE NEOPROTEROZOIC CHUAR GROUP, GRAND CANYON: IMPLICATIONS FOR CONTROLS ON C-ISOTOPE VARIABILITY OF NEOPROTEROZOIC OCEANS?: DEHLER, Carol M., Department of Geology, Utah State Univ, 4505 Old Main Hill, Logan, UT 84322-4505, chuaria@cc.usu.edu, ELRICK, Maya, Earth & Planetary Sciences, Univ of New Mexico, Northrop Hall, Albuquerque, NM 87131, CROSSEY, Laura J., Dept. of Earth & Planetary Sciences, Univ. of New Mexico, Northrop Hall, Albuquerque, NM 87131, and KARLSTROM, Karl E., Dept. of Earth and Planetary Sciences, Univ. of New Mexico, Albuquerque, NM 87131
10:25 AM A RE-EVALUATION OF THE NUMBER AND MAGNITUDE OF NEOPROTEROZOIC ICE AGES: CORSETTI, Frank Aldemaro1, KAUFMAN, Alan J.2, and MARENCO, Pedro J.1, (1) Department of Earth Sciences, Univ of Southern California, Los Angeles, CA 90089, fcorsett@earth.usc.edu, (2) Dept. Geol, Univ. Maryland, College Park, MD 20742
10:45 AM ANOTHER POSSIBLE CAP CARBONATE IN THE NEOPROTEROZOIC POCATELLO FORMATION, SOUTHEASTERN IDAHO: LORENTZ, Nathaniel J., Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089, nlorentz@earth.usc.edu, CORSETTI, Frank Aldemaro, Department of Earth Sciences, Univ of Southern California, Los Angeles, CA 90089, and LINK, Paul Karl, Geology, Idaho State Univ, Pocatello, ID 83209
11:05 AM SILICICLASTIC-CARBONATE CYCLES OF THE NEOPROTEROZOIC BLACKROCK CANYON LIMESTONE, SOUTHEASTERN IDAHO: LINK, Paul Karl1, CORSETTI, Frank Aldemaro2, and LORENTZ, Nathaniel J.2, (1) Geology, Idaho State Univ, Pocatello, ID 83209, linkpaul@isu.edu, (2) Department of Earth Sciences, Univ of Southern California, Los Angeles, CA 90089
11:20 AM TESTING THE HIGH OBLIQUITY HYPOTHESIS AS AN EXPLANATION FOR THE SNOWBALL EARTH MODEL: DONNADIEU, Yannick1, RAMSTEIN, Gilles1, FLUTEAU, Frederic1, and BESSE, Jean2, (1) LSCE, CE Saclay, DSM/Orme des Merisiers/Bat. 709, Gif Sur Yvette, 91191, France, tiphe@lsce.saclay.cea.fr, (2) Laboratoire de Paleomagnetisme, IPGP, 4 place Jussieu, Paris, 75005, France
11:40 AM Discussion

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