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| 46-1 | 1:30 PM | OXYGEN ISOTOPE COMPOSITION OF CARBONATE-ASSOCIATED SULFATE AND THE SOURCES AND CYCLING OF SULFATE IN THE EARLY OCEAN: LYONS, T.1, GILL, B.1, BALCI, N.2, GILHOOLY, W.1, REINHARD, C.1, BEKKER, A.3, PLANAVSKY, N.1, and HURTGEN, M.4, (1) Dept. of Earth Sciences, University of California, Riverside, CA 92521, timothy.lyons@ucr.edu, (2) Dept. of Biochemistry, University of Missouri, Columbia, MO 65211, (3) Geophysical Laboratory, Carnegie Institution, Washington, DC 20015, (4) Dept. of Geological Sciences, Northwestern University, Evanston, IL 60208 |
| 46-2 | 1:50 PM | MOLYBDENUM CONCENTRATION AND ISOTOPIC COMPOSITION IN THE ~2.5 GA MCRAE SHALE, HAMERSLEY BASIN, WESTERN AUSTRALIA: AN EARLY WHIFF OF OXYGEN?: DUAN, Yun1, ANBAR, Ariel D.1, ARNOLD, Gail Lee1, LYONS, Timothy W.2, KAUFMAN, Alan J.3, GORDON, Gwyneth1, BUICK, Roger4, and GARVIN, Jessica4, (1) School of Earth and Space Exploration, Arizona State University, Box 871404, Tempe, AZ 85287-1404, yun.duan@asu.edu, (2) Dept of Earth Sciences, University of California, Riverside, Riverside, CA 92521-0423, (3) Geology Department, University of Maryland, College Park, MD 20742, (4) Department of Earth and Space Sciences & Astrobiology Program, University of Washington, Seattle, WA 98195-1310 |
| 46-3 | 2:05 PM | THE ISOTOPIC EXPRESSION OF IRON SHUTTLING IN THE EUXINIC BLACK SEA BASIN AND IMPLICATIONS FOR THE RISE OF OXYGEN IN THE EARLY ATMOSPHERE: SEVERMANN, S.1, LYONS, T.1, ANBAR, A.2, GORDON, G.2, and MCMANUS, J.3, (1) Dept. of Earth Sciences, University of California, Riverside, CA 92521, silke.severmann@ucr.edu, (2) School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, (3) College of Oceanic and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331 |
| 46-4 | 2:20 PM | THE VERACITY AND IMPLICATIONS OF EDIACARAN NEGATIVE CARBON ISOTOPE EXCURSIONS IN THE WONOKA AND SHURAM FORMATIONS: KENNEDY, Martin, Department of Earth Sciences, University of California, Riverside, Riverside, CA 92521, martin.kennedy@ucr.edu, LE GUERROUÉ, Erwan, Department of Earth Science, University of California, Riverside, CA 92521, and KNAUTH, L. Paul, School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287 |
| 46-5 | 2:35 PM | MULTI-STAGE EDIACARAN OCEAN OXIDATION AND ITS IMPACT ON EVOLUTIONARY RADIATION: FIKE, David, Earth, Atmospheric, & Planetary Sciences, MIT, 77 Massachusetts Ave., 54-812, Cambridge, MA 02139, dfike@mit.edu, GROTZINGER, John, Geological and Planetary Science, California Institute of Technology, 1200 E. California Blvd, Pasadena, CA 91125, PRATT, Lisa, IPTAI, Dept. of Geological Sciences, Indiana University, Bloomington, IN 47405, and SUMMONS, Roger, Earth and Planetary Sciences, Massachusetts Institute of Technology, 44 Carleton St, E34-246, Cambridge, MA 02138 |
| 46-6 | 2:50 PM | RISE IN SEAWATER SULFATE CONTENT DURING THE LOMAGUNDI (CA. 2.22-2.1 GA) CARBON ISOTOPE EXCURSION: BEKKER, Andrey, Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Rd., N.W, Washington, DC 20015-1305, a.bekker@gl.ciw.edu |
| 46-7 | 3:05 PM | A STABLE ISOTOPE AND RE-OS STUDY OF ORGANIC-RICH MUDSTONES ACROSS A PROTEROZOIC GLACIAL CYCLE IN BRAZIL: GEBOY, Nicholas J., KAUFMAN, Alan J., and WALKER, Richard J., Geology Department, University of Maryland, College Park, MD 20742, ngeboy@geol.umd.edu |
| | 3:20 PM | Break |
| 46-8 | 3:35 PM | TRACE METAL RECORDS OF RAPID ANOXIA DEVELOPMENT IN A MEDITERRANEAN SATELLITE BASIN DURING THE PRE-EVAPORITIC MESSINIAN STAGE: BORDOLOI, Sandip, Department of Geological Sciences, Univ of Alabama, 202, Bevill Building, Tuscaloosa, AL 35487, bordo001@bama.ua.edu, AHARON, Paul, Department of Geological Sciences, Univ of Alabama, Box 870338, Tuscaloosa, AL 35487, TAVIANI, Marco, ISMAR-Marine Geology Division, Consiglio Nazionale delle Ricerche, via Gobetti 101, Bologna, 40129, and VAI, Gian Battista, Dipartimento di Scienze della Terra e Geo-ambientali, Univ. of Bologna, Via Zamboni 67, Bologna, 40126, Italy |
| 46-9 | 3:50 PM | OCEAN STRUCTURE AND ECOLOGY OF THE ANIMIKIE BASIN IRON-FORMATIONS: PLANAVSKY, Noah J., Rosenstiel School of Marine and Atmospheric Sciences, Univ of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149, planavsky@gmail.com, SHAPIRO, Russell, Geology Department, Gustavus Adolphus College, Saint Peter, MN 50682, KNUDSEN, Andrew, Geology Department, Lawrence University, Appleton, WI 54911, and ROUXEL, Olivier, Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543 |
| 46-10 | 4:05 PM | HEMATITE FORMATION BY OXYGENATED GROUNDWATER AT 2.76 GA AND BY OXYGENATED SEAWATER AT 3.46 GA: BEVACQUA, David Cicero, NASA Astrobiology Institute and Department of Geosciences, The Pennslvania State University, 410 Dieke Bldg, University Park, PA 16802, dcb14@psu.edu, HOASHI, Masamichi, Kagoshima University, Kagoshima, Japan, KATO, Yasuhiro, Department of Geosystem Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan, WATANABE, Yumiko, NASA Astrobiology Institute and Department of Geosciences, The Pennsylvania State University, 434 Deike Bldg, University Park, PA 16802, and OHMOTO, Hiroshi, NASA Astrobiology Institute and Department of Geosciences, The Pennsylvania State University, 435 Deike Bldg, University Park, PA 16803 |
| 46-11 | 4:20 PM | GEOCHEMICAL EVIDENCE FOR THE RESTRICTION OF OXIC DEPOSITIONAL ENVIRONMENTS IN THE PROTEROZOIC OCEAN: SCOTT, Clint1, LYONS, Timothy W.1, BEKKER, Andrey2, ANBAR, Ariel D.3, and WILLIAMS, Gwyneth4, (1) Dept of Earth Sciences, University of California, Riverside, Riverside, CA 92521-0423, cscot002@ucr.edu, (2) Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Rd., N.W, Washington, DC 20015-1305, (3) School of Earth & Space Exploration and Dept. of Chemistry & Biochemistry, Arizona State University, Tempe, AZ 85287, (4) School of Earth & Space Exploration, Arizona State University, Tempe, AZ 85287 |
| 46-12 | 4:35 PM | CARBON SOURCE CONTROLS ON ISOTOPIC COMPOSITION OF SULFATE BY SULFATE-REDUCING BACTERIA AND IMPLICATIONS FOR EVOLUTION OF THE EARLY ATMOSPHERE: BALCI, Nurgul1, WALL, Judy1, and LYONS, Timothy2, (1) Biochemistry, University of Missouri, 117 Schweitzer Hall, Columbia, MO 65201, balcin@missouri.edu, (2) Earth Sciences, University of California, Riverside, Riverside, CA 92521-0423 |
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