Earth System Processes 2 (8–11 August 2005)
Session No. 43 Wednesday, August 10, 2005
1:30 PM-4:30 PM, Westin Hotel: Bonavista

T31. Proterozic Biosphere

Russell Shapiro, Presiding
 Paper #Start Time
43-11:30 PM WERE PROTEROZOIC SHELF EDGES INHERENTLY UNSTABLE DUE TO LACK OF BIOTURBATION ?: HEUBECK, Christoph E., Freie Univ Berlin, Malteserstr. 74-100, Haus B, Berlin 12249, cheubeck@zedat.fu-berlin.de.
43-21:50 PM DRAWDOWN OF A 15N ENRICHED C1 CHONDRITE PRECAMBRIAN ATMOSPHERE: JIA, Yiefei, CSIRO Exlporation & Mining, School of Geosciences, Monash University, P.O.Box 28E, Clayton, Melbourne, 3800, Australia, yiefei.jia@csiro.au and KERRICH, Robert, Geological Sciences, Univ of Saskatchewan, 114 Science Place, Saskatoon, SK S7N 5E2, Canada
43-32:10 PM BIOTIC INFLUENCES ON ‘ABIOTIC’ PALEOPROTEROZOIC STROMATOLITES, BIWABIK IRON-FORMATION, MINNESOTA: SHAPIRO, Russell, Department of Geology, Gustavus Adolphus College, Saint Peter, MN 56082, rshapiro@gustavus.edu and PLANAVSKY, Noah, Lawrence University, Appleton, WI 54911
43-42:30 PM FACTORS CONTROLLING THE INCREASE IN TORQUE IN THE EARTH-MOON SYSTEM AT THE NEOPROTEROZOIC – CAMBRIAN BOUNDARY: OLIVER, Douglas H., Department of Geosciences, Univ of Arkansas, Fayetteville, AR 72701, dholiver@uark.edu and SCHAILEY, Ronald, Tarrant County College, 2100 Southeast Parkway, Arlington, TX 76019

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