Session No. 184 Tuesday, October 29, 2002

1:30 PM-5:30 PM, Colorado Convention Center: A207
T126. Reconstructing the Cambrian World: Temporal and Spatial Changes in Physical and Biotic Environments
Ed Landing and Gerd Geyer, Presiding
 Paper #Start Time
 1:30 PM Introductory Remarks
184-11:45 PM CARBON CYCLING PERTURBATION THROUGH THE LOWER-MIDDLE CAMBRIAN BOUNDARY INTERVAL AND OLENELLOID BIOMERE EXTINCTION AS REVEALED BY d13CORG: MONTANEZ, Isabel1, NEST, Danielle2, GRAGG, Kathyrn3, MCCOLLUM, Linda4, MCCOLLUM, Michael4, and OSLEGER, David3, (1) Dept. of Geology, Univ of California, Davis, Davis, CA 95616, montanez@geology.ucdavis.edu, (2) Dept. of Earth & Space Sciences, SUNY at Stony Brook, Stony Brook, NY 11794, (3) Dept. of Geology, Univ of California, Davis, Davis, CA 95616, (4) Dept. of Geology, Eastern Washington Univ, Cheney, WA 99004
184-22:00 PM OXYGEN-CONTROLLED BIOFACIES OF THE MIDDLE CAMBRIAN WHEELER SHALE AND EQUIVALENTS, EASTERN BASIN AND RANGE: GAINES, Robert R., Univ California - Riverside, Dept Earth Sciences -036, Riverside, CA 92507, rgaines@citrus.ucr.edu and DROSER, Mary L., Department of Earth Sciences, Univ of California, Riverside, Riverside, CA 92521
184-32:15 PM THE HERB EVENT: END OF THE CAMBRIAN CARBON CYCLE PARADIGM?: RIPPERDAN, Robert L., Department of Geology, Univ of Puerto Rico, Mayaguez, PO Box 9017, Mayaguez, PR 00681, ripperdan@rumac.uprm.edu.
184-42:30 PM CLIMATE CHANGE, SEA LEVELS, AND EPEIRIC SEA-CONTINENTAL SLOPE OXYGENATION IN THE CAMBRIAN: LANDING, Ed, N.Y.S. Museum, State Education Dept, Madison Avenue, Albany, NY 12230, elanding@mail.nysed.gov.
 2:45 PM Break
184-53:00 PM RECONSTRUCTING THE CAMBRIAN WORLD THROUGH PALEOMAGNETISM: RAUB, Tim D.1, EVANS, David1, and KIRSCHVINK, Joseph L.2, (1) Geology & Geophysics, Yale Univ, P.O. Box 208109, New Haven, CT 06520-8109, traub@its.caltech.edu, (2) Geological and Planetary Sciences, Caltech, 170-25, Pasadena, CA 91125
184-63:15 PM A METHANE FUSE FOR THE CAMBRIAN EXPLOSION: CARBON CYCLES AND TRUE POLAR WANDER: KIRSCHVINK, Joseph L., Deparment of Geological and Planetary Science, California Institute Technology, 1201 E California Blvd MC 170-25, Pasadena, CA 91125-0001, kirschvink@caltech.edu and RAUB, Timothy D., California Institute Technology, 1201 E California Blvd MC 170-25, Pasadena, CA 91125-0001
184-73:30 PM EXTINCTION OF CLOUDINA AND NAMACALATHUS AT THE PRECAMBRIAN-CAMBRIAN BOUNDARY IN OMAN: AN INITIAL CONDITION FOR EARLY CAMBRIAN RADIATION: GROTZINGER, John P.1, SCHRÖDER, Stefan1, BOWRING, Samuel A.1, RAMEZANI, Jahandar1, AMTHOR, Joachim E.2, and MATTER, A.3, (1) Massachusetts Institute Technology, 77 Massachusetts Ave Rm 54-816, Cambridge, MA 02139-4301, grotz@mit.edu, (2) Petroleum Development Oman, Box 81, Muscat, PC 113, Oman, (3) Institute of Geology, Univ of Bern, CH-3012 Bern, Switzerland
184-83:45 PM FOSSIL CONSTRAINTS IN RECONSTRUCTING INDIAN EQUATORIAL PERI-GONDWANALAND DURING THE CAMBRIAN: HUGHES, Nigel1, HEIM, Noel A.1, MYROW, Paul2, and PARCHA, S.K.3, (1) Earth Sciences, Univ of California, Riverside, 1432 Geology Building, Riverside, CA 92521, nigel.hughes@ucr.edu, (2) Dept. of Geology, Colorado College, Colorado Springs, CO 80903, (3) Wadia Institute of Himalaya Geology, Dehra Dun, Uttranchal, 248001, India
184-94:00 PM WESTERN GONDWANAN FAUNAS, DIVERSITIES AND FACIES DURING THE CAMBRIAN: GEYER, Gerd, Institut für Paläontologie, Bayerische Julius-Maximilians-Universität Würzburg, Pleicherwall 1, Würzburg 97070 Germany, palo001@rzroe.uni-wuerzburg.de.
184-104:20 PM Paper Withdrawn
184-114:35 PM JUST HOW COMPLETE IS THE SEDIMENTARY RECORD AT BIOMERE EXTINCTIONS? AN EXAMPLE FROM THE LOWER-MIDDLE CAMBRIAN BOUNDARY IN LAURENTIA: MCCOLLUM, Linda B., Geology, Eastern Washington Univ, Cheney, WA 99004, lmccollum@ewu.edu, SUNDBERG, Frederick A., Geology Department, Eastern Washington Univ, Cheney, WA 99004-1342, and MONTANEZ, Isabel P., Dept. of Geology, Univ of California, Davis, CA 95616
184-124:50 PM GEOCHEMISTRY AND SEQUENCE STRATIGRAPHY OF THE MIDDLE CAMBRIAN WHEELER FORMATION: SUPPORT FOR TRILOBITE CHRONOSTRATIGRAPHY: LANGENBURG, Elizabeth S.1, LIDDELL, W. David1, and DEHLER, Carol M.2, (1) Geology, Utah State Univ, 4505 Old Main Hill, Logan, UT 84322-4505, esl@cc.usu.edu, (2) Department of Geology, Utah State Univ, 4505 Old Main Hill, Logan, UT 84322-4505
184-135:05 PM FALLEN ARCHES: MYTHS CONCERNING THE CAMBRIAN-ORDOVICIAN PALEOGEOGRAPHY OF WESTERN NORTH AMERICA: TAYLOR, John F., Geoscience Department, Indiana Univ of Pennsylvania, Indiana, PA 15705, jftaylor@iup.edu, MYROW, Paul M., Geology Department, Colorado College, 14 E Cache La Poudre St, Colorado Springs, CO 80903-3243, RIPPERDAN, Robert L., Department of Geology, Univ of Puerto Rico, Mayaguez, PO Box 9107, Mayaguez, PR 00681, MILLER, James F., Geography, Geology, and Planning Department, Southwest Missouri State Univ, Springfield, MO 65804, ETHINGTON, Raymond L., Geological Sciences, Univ of Missouri-Columbia, 101 Geology Building, Columbia, MO 65211, and ALLEN, Joseph L., Department of Physical Sciences, Concord College, Athens, WV 24712-1000

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