Session No. 90 Tuesday, November 6, 2001

1:30 PM-5:30 PM, Hynes Convention Center: 306
T9. New Insights into Late Ordovician Climate, Oceanography and Tectonics
Michael C. Pope and Mark T. Harris, Presiding
 Paper #Start Time
90-01:30 PM CORRELATION OF (MOHAWKIAN) K-BENTONITES BY USING APATITE CHEMISTRY: IMPLICATION FOR DECORAH FORMATION CARBONATE AND SHALE DEPOSITIONAL SEQUENCES: EMERSON, Norlene R., FOURNELLE, John, SIMO, J. A., and BYERS, Charles W., Dept. of Geology and Geophysics, Univ of Wisconsin - Madison, 1215 West Dayton St, Madison, WI 53706, norlene@geology.wisc.edu
90-01:45 PM PALEOCEANOGRAPHY OF THE DECORAH FORMATION (ORDOVICIAN, MOHAWKIAN), NORTHERN MISSISSIPPI VALLEY: BYERS, Charles W., SIMO, J. Antonio, and EMERSON, Norlene R., Geology and Geophysics, Univ of Wisconsin, 1215 W. Dayton St, Madison, WI 53706, cwbyers@geology.wisc.edu
90-02:00 PM INFLUENCE OF TECTONICS, PALEOGEOGRAPHY AND PALEOCLIMATE ON THE SEDIMENTARY RECORD OF EAST-CENTRAL LAURENTIA AT THE MIDDLE-LATE ORDOVICIAN TRANSITION: ETTENSOHN, Frank R., Department of Geological Sciences, Univ of Kentucky, 101 Slone Bldg, Lexington, KY 40506-0053, fettens@pop.uky.edu and HOHMAN, John C., ExxonMobil Exploration Co, Houston, TX 77210
90-02:15 PM IMPACT OF THE SEBREE TROUGH ON MIDDLE AND LATE ORDOVICIAN PALEOCEANOGRAPHY OF THE MIDCONTINENT USA: KOLATA, Dennis R., Illinois State Geological Survey and Dept. of Geology, Univ of Illinois at Urbana-Champaign, 615 E. Peabody Dr, Champaign, IL 61820, kolata@isgs.uiuc.edu, BERGSTROM, Stig M., Ohio State Univ - Columbus, 155 S Oval Mall, Columbus, OH 43210-1308, and HUFF, Warren D., Dept. of Geology, Univ of Cincinnati, Cincinnati, OH 45221
90-02:30 PM DIFFERENTIATING THE EFFECTS OF BASEMENT STRUCTURES, ELASTIC FLEXURE, AND EUSTASY IN THE EVOLUTION OF THE EARLY TACONIC (BLOUNTIAN) FORELAND BASIN OF SOUTHEASTERN LAURENTIA (NORTH AMERICAN CRATON): BAYONA, Germán1, THOMAS, William A.1, FINNEY, Stanley C.2, and REPETSKI, John E.3, (1) Department of Geological Sciences, Univ of Kentucky, 101 Slone Bldg, Lexington, KY 40506-0053, gbayo2@pop.uky.edu, (2) California State Univ - Long Beach, Dept Geological Sciences, Long Beach, CA 90840-3902, (3) US Geol Survey, 926A National Ctr, Reston, VA 20192-0001
90-02:45 PM NEW COMPLEXITIES IN THE EXPRESSION OF LATE ORDOVICIAN CARBON ISOTOPE EXCURSIONS STRADDLING THE TURINIAN-CHATFIELDIAN BOUNDARY INTERVAL: LUDVIGSON, G. A.1, WITZKE, B. J.1, GONZALEZ, L. A.2, CARPENTER, S. J.2, and HASIUK, F. J.2, (1) Iowa DNR Geological Survey, 109 Trowbridge Hall, Iowa City, IA 52242-1319, gregory-ludvigson@uiowa.edu, (2) Geoscience, Univ of Iowa, Iowa City, IA
90-03:00 PM EUSTACY AND TECTONICS OF THE LATE ORDOVICIAN OF EASTERN LAURENTIA: IMPLICATIONS FROM SEQUENCE STRATIGRAPHIC COMPARISONS OF NEW YORK, PENNSYLVANIA, OHIO, AND KENTUCKY: MCLAUGHLIN, Patrick I., BRETT, Carlton E., TAHA MCLAUGHLIN, Susannah L., and CORNELL, Sean R., Department of Geology, Univ of Cincinnati, H.N. Fisk Laboratory of Sedimentology, 500 Geology Physics Building, Cincinnati, OH 45221, pimclau@hotmail.com
90-03:15 PM LATE ORDOVIDIAN CARBONATES AND PALEOGEOGRAPHY: A COMPARISON OF WESTERN LAURENTIA (GREAT BASIN) AND BALTICA (ESTONIA): HARRIS, Mark1, SHEEHAN, Peter2, AINSAAR, Leho3, HINTS, Linda4, MANNIK, Peep4, NOLVAK, Jaak4, and RUBEL, Madis3, (1) Dept. of Geosciences, Univ of Wisconsin-Milwaukee, P. O. Box 413, Milwaukee, WI 53201, mtharris@uwm.edu, (2) Milwakee Public Museum, Milwaukee, WI, (3) Univ of Tartu, Tartu, Estonia, (4) Institute of Geology, Tallinn, Estonia
 3:30 PM Break
90-03:45 PM SEA LEVEL FORCING OF LATE ORDOVICIAN CARBON ISOTOPE EXCURSIONS: FANTON, Kerrie C. and HOLMDEN, Chris, Geology, Univ of Saskatchewan, 114 Science Pl, Saskatoon, SK S7N 5E2, Canada, kef366@mail.usask.ca
90-04:00 PM PATTERNS OF EUSTASY, PALEOCEANOGRAPHY AND CONODONT BIOTIC CHANGE ASSOCIATED WITH THE TERMINAL ORDOVICIAN GLACIATION: BARNES, Christopher R., School of Earth and Ocean Sciences, Univ of Victoria, P.O. Box 3055, Victoria, BC V8W 3P6 Canada, crbarnes@uvic.ca.
90-04:15 PM SPECIES DIVERSIFICATION DURING MASS EXTINCTION: GRAPTOLITES IN THE LATE ORDOVICIAN: FINNEY, Stanley C., California State Univ - Long Beach, Dept Geological Sciences, Long Beach, CA 90840-3902, scfinney@csulb.edu and BERRY, William B.N., Dept. of Geology and Geophysics, University of California, Berkeley, CA 94720
90-04:30 PM UPWELLING IN THE MONTOYA GROUP: EVIDENCE FOR PROLONGED LATE ORDOVICIAN GLACIATION: POPE, Michael C., Geology, Washington State Univ, P.O. Box 642812, Pullman, WA 99163, mcpope@wsu.edu and STEFFEN, Jessica B.
90-04:45 PM THE QUEENSTON SEDIMENTARY COMPLEX: A LINK WITH LATE ORDOVICIAN GLACIATION?: BERRY, William B.N., Earth & Planetary Science, Univ of California, Berkeley, CA 94720-4767, bberry@uclink4.berkeley.edu and FINNEY, Stanley C., Department of Geological Sciences, California State Univ-Long Beach, Long Beach, CA 90840-3902
90-05:00 PM CHANGES IN PALEOGEOGRAPHY AND SEA LEVEL AS DRIVERS FOR GLOBAL COOLING DURING THE LATE ORDOVICIAN: HERRMANN, Achim D., Pennsylvania State Univ - Univ Park, 439 Deike Bldg, University Park, PA 16802-2713, achim@geosc.psu.edu and PATZKOWSKY, Mark E., Pennsylvania State Univ, 506 Deike Bldg, University Park, PA 16802-2714
90-05:15 PM Paper Withdrawn

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