Geological Society of America

8:00 AM

NEW VIEW OF THE OLD OCEAN: A PREVALENCE OF DEEP IRON AND MARGINALIZED SULFIDE FROM THE LATE ARCHEAN THROUGH THE PROTEROZOIC

Timothy Lyons, Univ. of California, Riverside, CA and C.T. Reinhard, Univ. of California, Riverside, CA and C. Scott, Univ. of California, Riverside, CA and A.D. Anbar, Arizona State University, Tempe, AZ and A. Bekker, Univ. of Manitoba, Winnipeg, MB and B. Kendall, Arizona State Univ, Tempe, AZ and C. Li, Univ. of California, Riverside, CA and G.D. Love, Univ. of California, Riverside, CA and P. McGoldrick, Univ. of Tasmania, Hobart, TAS, N/A and N.J. Planavsky, Univ. of California, Riverside, CA and R. Raiswell, Leeds Univ, Leeds, N/A

181160 (Technical Sessions)

8:20 AM

FORMATION OF SYNGENETIC AND EARLY DIAGENETIC IRON MINERALS IN THE LATE ARCHEAN MT. MCRAE SHALE: PALEOCEANOGRAPHIC IMPLICATIONS

Rob Raiswell, School of Earth and Environment, Leeds, N/A and Chris Reinhard, University of California, Riverside, CA and Arkadiusz Derkowski, Institute of Geological Sciences, Krakow, N/A and Jeremy Owens, University of California, Riverside, CA and Simon Bottrell, School of Earth and Environment, Leeds, N/A and Ariel D. Anbar, Arizona State University, Tempe, AZ and Timothy Lyons, University of California, Riverside, CA

180644 (Technical Sessions)

8:35 AM

NUMERICAL MODELING OF ARCHEAN UPWELLING

C.T. Reinhard, University of California, Riverside, Riverside, CA and Timothy Lyons, University of California, Riverside, Riverside, CA

180748 (Technical Sessions)

8:50 AM

THE ROLE OF EARLY LIFE IN THE PROTEROZOIC PHOSPHORUS CYCLE: EVIDENCE FROM THE BARAGA GROUP, MICHIGAN

Eric E. Hiatt, Univ of Wisconsin-Oshkosh, Oshkosh, WI and Peir K. Pufahl, Acadia University, Wolfville, NS and Cole T. Edwards, Acadia University, Wolfville, NS

180708 (Technical Sessions)

9:05 AM

SULFUR ISOTOPE SYSTEMATICS IN A LOW SULFATE, PERMANENTLY ANOXIC LAKE

Maya Gomes, Northwestern University, Evanston, IL and Matthew T. Hurtgen, Northwestern University, Evanston, IL

182106 (Technical Sessions)

9:35 AM

REDOX CONDITIONS IN LATE PERMIAN-EARLY TRIASSIC OCEANS: THE ROLE OF ELEVATED CONTINENTAL WEATHERING FLUXES

Thomas Algeo, University of Cincinnati, Cincinnati, OH

178362 (Technical Sessions)

9:55 AM

COUPLED MARINE REDOX AND CARBON CYCLE PERTURBATIONS IN THE EARLY PALEOZOIC

Patrick McLaughlin, Wisconsin Geological and Natural History Survey, Madison, WI and Poul Emsbo, USGS, Denver, CO and Carlton Brett, Univ of Cincinnati, Cincinnati, OH

181640 (Technical Sessions)

10:10 AM

THE IREVIKEN EVENT: A SILURIAN OAE

Poul Emsbo, USGS, Denver, CO and Patrick McLaughlin, Wisconsin Geological and Natural History Survey, Madison, WI and Axel Munnecke, Universität Erlangen-Nürnberg, Erlangen and George N. Breit, U.S. Geological Survey, Denver, CO and A.E. Koenig, USGS, Denver, CO and Lennart Jeppsson, Lund University, Lund, N/A and Philip L. Verplanck, U.S. Geological Survey, Denver, CO

182093 (Technical Sessions)

10:25 AM

DIFFERENTIAL MINERALIZATION OF N AND P AND THE REDOX STATE OF LATE DEVONIAN EUXINIC BASINS

Michael L. Tuite, University of Virginia, Charlottesville, VA and Stephen Macko, University of Virginia, Charlottesville, VA

181394 (Technical Sessions)

10:40 AM

DIGESTION METHODS FOR TRACE ELEMENT MEASUREMENTS IN SHALES: PALEOREDOX PROXIES EXAMINED

Guangping Xu, Colorado State University and Geological Survey of Norway, Fort Collins, CO and Judith L. Hannah, Department of Geosciences, Fort Collins, CO and Bernard Bingen, Geological Survey of Norway, Trondheim, N/A and H. Stein, Colorado State University and Geological Survey of Norway, Fort Collins, CO and S. Georgiev, dual affiliation with AIRIE Program, Department of Geosciences, Colorado State University, Trondheim, N/A

181779 (Technical Sessions)

T238 Marine Redox Evolution: Controls and Consequences I

Presentations