2009 Portland GSA Annual Meeting (18-21 October 2009)
Session No. 206 Tuesday, 20 October 2009
1:30 PM-5:30 PM, Oregon Convention Center: B116

T89. Greenstone Belts, Archaean Earth, and Early Life (GSA International Section; Precambrian [at large]; GSA Structural Geology and Tectonics Division; GSA Geophysics Division; GSA Geobiology & Geomicrobiology Division; Geochemical Society; Paleontological Society; GSA History of Geology Division)

Yildirim Dilek, Harald Furnes and Maarten de Wit, Presiding
 Paper #Start Time
206-11:30 PM THICK OCEANIC CRUST, HOT MANTLE, AND PLATE TECTONICS IN THE ARCHAEAN EARTH: DILEK, Yildirim, Dept of Geology, Miami University, 114 Shideler Hall, Oxford, OH 45056, dileky@muohio.edu, POLAT, Ali, Earth Sciences, University of Windsor, Windsor, Ontario N9B, Canada, and FURNES, Harald, Department of Earth Science & Centre for Geobiology, University of Bergen, Allegaten 41, Bergen, 5007, Norway
206-21:45 PM DEVELOPMENT OF PILBARA AND KAAPVAAL GRANITE-GREENSTONE TERRANES IN AN OCEANIC PLATEAU SETTING: VAN KRANENDONK, Martin J., Geological Survey of Western Australia, 100 Plain St, East Perth WA 6004 Australia, martin.vankranendonk@dmp.wa.gov.au
206-32:05 PM A BILLION-YEAR (3800-2800 MA) HISTORY OF INTRA-OCEANIC VOLCANISM, EO- TO NEOARCHEAN GREENSTONE BELTS, SW GREENLAND: POLAT, Ali, Earth and Environmental Sciences, University of Windsor, Windsor, ON N9B 3P4, Canada, polat@uwindsor.ca and DILEK, Yildirim, Dept of Geology, Miami University, Oxford, OH 45056
206-42:20 PM CRUSTAL EVOLUTION OF ARCHEAN ROCKS FROM THE MINNESOTA RIVER VALLEY: CONSTRAINTS FROM HF ISOTOPES: SATKOSKI, Aaron M.1, BICKFORD, M.E.1, WOODEN, J.L.2, MUELLER, Paul A.3, and KAMENOV, G.D.3, (1) Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244-1070, amsatkos@syr.edu, (2) Stanford University, Stanford, CA 94305, (3) Department of Geological Sciences, University of Florida, Gainesville, FL 32611
206-52:35 PM U-PB & STABLE ISOTOPE STUDY OF ZIRCONS: FLUID SOURCES, TIMESCALES, & CRUSTAL IMPLICATIONS FROM THE PORCUPINE GOLD CAMP IN THE ABITIBI GRANITE GREENSTONE BELT, SUPERIOR PROVINCE: BACHTEL, Jonathan1, SCHNEIDER, D.A.1, and SCHMITT, A.2, (1) Earth Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada, jbach068@uottawa.ca, (2) Earth & Space Sciences, UCLA, Los Angeles, CA 90095-1577
206-62:50 PM NEW STRATIGRAPHIC ARCHITECTURE OF THE ONVERWACHT SUITE, BARBERTON GREENSTONE BELT, SOUTH AFRICA: FRESH FERMENT FOR MID-ARCHEAN TECTONIC MODELS: DE WIT, Maarten, AEON-Africa Earth Observatory Network, and Department of, University of Cape Town, Rondebosch, 7700, South Africa, Maarten.DeWit@uct.ac.za and FURNES, Harald, Department of Earth Science & Centre for Geobiology, University of Bergen, Allegaten 41, Bergen, 5007, Norway
206-73:05 PM 200 MILLION YEARS OF KOMATIITE EVOLUTION IN THE BARBERTON GREENSTONE BELT, SOUTH AFRICA: ARNDT, Nick1, ROBIN, Christophe1, BYERLY, Gary2, PUCHTEL, Igor3, BLICHERT-TOFT, Janne4, and WILSON, Allan5, (1) Lgca, Universite de Grenoble, 1381 rue de la Piscine, Grenoble, 38400, France, arndt@ujf-grenoble.fr, (2) Dept. of Geology and Geophysics, Louisiana State Univ, Baton Rouge, LA 70803, (3) College Park, MD MD 20742, (4) Laboratoire de Sciences de la Terre, Ecole Normale Superieure de Lyon, 46, Allée d'Italie, Lyon, 69364, France, (5) Johannesburg, South Africa
 3:20 PM Break
206-83:35 PM VOLCANIC EVOLUTION OF THE UPPER ONVERWACHT SUITE, BARBERTON MOUNTAIN LAND, SOUTH AFRICA: FURNES, Harald, Department of Earth Science & Centre for Geobiology, University of Bergen, Allegaten 41, Bergen, 5007, Norway, harald.furnes@geo.uib.no, DE WIT, Maarten, AEON-Africa Earth Observatory Network, and Department of, University of Cape Town, Rondebosch, 7700, South Africa, and ROBINS, Brian, Department of Earth Science, Allegaten 41, Bergen, 5007, Norway
206-93:55 PM METAMORPHIC CONSTRAINTS ACROSS A MAFIC-ULTRAMAFIC TECTONITE ZONE BETWEEN THE MENDON AND KROMBERG COMPLEXES, BARBERTON GREENSTONE BELT, SOUTH AFRICA: GROSCH, Eugene G., Africa Earth Observatory Network (AEON) and the Department of Geological Sciences, University of Cape Town, Rondebosch 7700, Cape Town, 7700, South Africa, geogene@gmail.com, DE WIT, Maarten, AEON-Africa Earth Observatory Network, and Department of, University of Cape Town, Rondebosch, 7700, South Africa, FURNES, Harald, Department of Earth Science & Centre for Geobiology, University of Bergen, Allegaten 41, Bergen, 5007, Norway, and MCLOUGHLIN, Nicola, Department of Earth Science & Centre for Geobiology, University of Bergen, Allegaten 41, Bergen, Bergen, 5007, Norway
206-104:10 PM TEMPERATURES GRADIENTS IN THE MARINE ARCHEAN EXOGENIC CYCLE DERIVED FROM THE ALTERATION OF SEAFLOOR BASALTS, BARBERTON GREENSTONE BELT, SOUTH AFRICA: MUEHLENBACHS, Karlis, Earth and Atmospheric Sciences, University of Alberta, 1-26 ESB, Edmonton, AB T6G 2E3, karlis.muehlenbachs@ualberta.ca, FURNES, Harald, Department of Earth Science & Centre for Geobiology, University of Bergen, Allegaten 41, Bergen, 5007, Norway, and DE WIT, Maarten, AEON-Africa Earth Observatory Network, and Department of, University of Cape Town, Rondebosch, 7700, South Africa
206-114:25 PM ARCHAEAN HYDROTHERMAL SYSTEMS IN THE BARBERTON GREENSTONE BELT AND THEIR SIGNIFICANCE AS A HABITAT FOR EARLY LIFE: HOFMANN, Axel, School of Geological Sciences, University of KwaZulu-Natal, P/Bag X54001, Durban 4000 South Africa, hofmann@ukzn.ac.za
206-124:45 PM MICROBES USE BOTH ELEMENTAL SULFUR AND SULFATE AT 3.3 GA IN THE BARBERTON GREENSTONE BELT, SOUTH AFRICA: MASON, Paul R.D.1, ROERDINK, Desiree1, REIMER, Thomas2, and WHITEHOUSE, Martin J.3, (1) Department of Earth Sciences, Utrecht University, Budapestlaan 4, Utrecht, 3584 CD, Netherlands, mason@geo.uu.nl, (2) Bernhard-May-Str. 43, Wiesbaden, 65203, Germany, (3) Laboratory for Isotope Geology, Swedish Museum of Natural History, Stockholm, SE-104 05, Sweden
206-135:00 PM MICROBIAL BIOALTERATION TEXTURES IN GREENSTONE BELT PILLOW LAVAS: MCLOUGHLIN, Nicola, Centre for Geobiology & Department of Earth Science, University of Bergen, Allegaten 41, Bergen, Bergen, 5007, Norway, Nicola.Mcloughlin@geo.uib.no, FURNES, Harald, Department of Earth Science & Centre for Geobiology, University of Bergen, Allegaten 41, Bergen, 5007, Norway, STAUDIGEL, Hubert, Scripps Insitution of Oceanography, Univ of California, UCSD-0225, La Jolla, CA 9209309 0225, MUEHLENBACHS, Karlis, Earth and Atmospheric Sciences, University of Alberta, 1-26 ESB, Edmonton, AB T6G 2E3, FLIEGEL, Daniel, Department of Earth Science and Center for Geobiology, University of Bergen, Allegaten 41, Bergen, n-5007, Norway, GROSCH, Eugene, Africa Earth Observatory Network (AEON) and the Department of Geological Sciences, University of Cape Town, Rondebosch 7700, Cape Town, 7700, South Africa, and DE WIT, Maarten, AEON-Africa Earth Observatory Network, and Department of, University of Cape Town, Rondebosch, 7700, South Africa
206-145:15 PM IRON AND CARBON ISOTOPE EVIDENCE FOR ECOSYSTEM AND ENVIRONMENTAL DIVERSITY IN THE ~2.7 TO 2.5 GA HAMERSLEY BASIN, WESTERN AUSTRALIA: CZAJA, Andrew D.1, JOHNSON, Clark M.1, BEARD, Brian L.1, EIGENBRODE, Jennifer L.2, FREEMAN, Katherine H.3, and YAMAGUCHI, Kosei E.4, (1) Department of Geoscience, NASA Astrobiology Institute, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53706, (2) NASA Goddard Space Flight Center, Code 699.0, Greenbelt, MD 20771, (3) Department of Geosciences, Pennsylvania State University, 235 Deike Building, University Park, PA 16802, (4) Department of Chemistry, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, Japan, kosei@chem.sci.toho-u.ac.jp

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