Session No. T2 Wednesday, June 27, 2001

10:00 AM-4:30 PM, Edinburgh International Conference Centre: Sidlaw
T2. Role of Hydrothermal Systems in Biospheric Evolution (Sponsored by NASA Astrobiology Institute)
Jack Farmer and Mike Russell, Presiding
Start Time
10:00 AM Introductory Remarks
10:10 AM TERRESTRIAL HYDROTHERMAL PROCESSES: A REVIEW: PIRAJNO, Franco, Geol Survey of Western Australia, 100, Plain Street, East Perth 6004 Australia, f.pirajno@dme.wa.gov.au.
10:40 AM THE ONSET OF LIFE IS A COROLLARY OF CONVECTION ON EARLY EARTH: RUSSELL, Michael John, Isotope Geoscience Unit, Scottish Universities Environmental Rsch Centre, East Kilbride, Glasgow, G75 0QF, United Kingdom, m.russell@surrc.gla.ac.uk and HALL, Allan J., Archaeology, Univ of Glasgow, Glasgow, G12 8QQ, United Kingdom,
11:00 AM GOURMET GEOCHEMICAL “PRIMORDIAL SOUPS” AT HYDROTHERMAL VENTS SUPPORT NOVEL THERMOPHILIC CHEMOLITHOTROPHS: IMPLICATIONS FOR THE EVOLUTION OF LIFE ON EARLY EARTH: REYSENBACH, Anna-Louise, Department of Biology, Portland State Univ, Portland, OR 97201, reysenbacha@pdx.edu.
11:30 AM Break
11:35 AM THE BIOGEOCHEMISTRY OF SULFUR IN HYDROTHERMAL SYSTEMS: SCHULTE, Mitch, Exobiolgy Branch, NASA Ames Rsch Ctr, Mail Stop 239-4, Moffett Field, CA 90435, mschulte@mail.arc.nasa.gov and ROGERS, Karyn L., Earth and Planetary Sciences, Washington Univ, Campus Box 1169, 1 Brookings Dr, St. Louis, MO 63130,
11:55 AM DO SUPERPLUMES SELECT FOR HYPERTHERMOPHILES IN THE DEEP SUBSURFACE?: ONSTOTT, T. C.1, MOSER, Duane P.1, LIN, Lihung1, TAKAI, Ken2, FREDRICKSON, Jim K.2, BROCKMAN, Fred J.2, PRATT, Lisa3, SHERWOOD-LOLLAR, Barbara4, SLATER, Greg4, HOEK, Joost5, OMAR, Gomaa I.6, KIEFT, Tom7, BALKWILL, David8, PFIFFNER, Susan9, PHELPS, Tommy J.10, LIPPMAN, Johanna11, and STUTE, Martin11, (1) Dept. of Geosciences, Princeton Univ, Princeton, NJ 08544, tullis@princeton.edu, (2) Pacific Northwest National Lab, P.O. Box 999, Mail stop P7-50, Richland, WA 99352, (3) Dept. of Geological Sciences, Indiana Univ, 1005 East 10th Street, Bloomington, IN 47405, Brazil, (4) Dept. of Geology, Univ. of Toronto, 22 Russel Street, Toronto, ON M5S 3D1, Canada, (5) Dept. of Geology, Univ. of Pennsylvania, Philadelphia, PA 19104-6316, (6) Dept. of Earth and Environmental Science, Univ. of Pennsylvania, 240 South 33rd Street, Philadelphia, PA 19104-6316, (7) Department of Biology, New Mexico Tech, Socorro, NM 87801, (8) Dept. of Biological Sciences, Florida State Univ, 312 Nuclear Sciences Building, Palmetto Dr. and Cheiftan Way, Tallahassee, FL 32306, (9) Center for Environmental Biotechnology, The Univ of Tennessee, 10515 Research Dr, Ste. 300, Knoxville, TN 37932-2575, (10) Environmental Sciences Division, Oak Ridge National Lab, P.O. Box 2008, Oak Ridge, TN 37831-6036, (11) Lamont Doherty Earth Observatory, 61 Rte. 9W, Palisades, NY 10964
12:15 PM CONTROLS ON MICROBIAL BIOSIGNATURE PRESERVATION IN SUBAERIAL HYDROTHERMAL SPRINGS, YELLOWSTONE NATIONAL PARK: FARMER, Jack D., Dept. of Geological Sciences, Arizona State Univ, P.O. Box 871404, Tempe, CA 85287-1404, jfarmer@asu.edu, BEBOUT, Brad, Exobiology Branch, NASA Ames Rsch Ctr, MS 239-4, Moffett Field, CA 94035-1000, and VISSCHER, Pieter, Dept. Marine Sciences, Univ of Connecticut, 1084 Shennecossett Road, Groton, CT 06340,
12:35 PM Lunch
2:20 PM FORMATION, ALTERATION, AND PRESERVATION OF HYPERTHERMOPHILIC BIOSIGNATURES: CADY, Sherry L., Department of Geology, Portland State Univ, 1721 SW Broadway, 17 Cramer Hall, Portland, OR 97201, cadys@pdx.edu.
2:40 PM WELL-PRESERVED FILAMENTOUS FABRICS IN MINERALS FROM SUBSURFACE HYDROTHERMAL ENVIRONMENTS: HOFMANN, Beda A., Earth Science Department, Natural History Museum Bern, Bernastrasse 15, Bern, 3005, Switzerland, beda.hofmann@nmbe.unibe.ch and FARMER, Jack D., Department of Geological Sciences, Arizona State Univ, Box 871404, Tempe, AZ 85287,
3:00 PM Break
3:10 PM ANCIENT SEEPS IN THE MIDDLE CAMBRIAN BURGESS SHALE: PALEOECOLOGICAL AND EVOLUTIONARY IMPLICATIONS: JOHNSTON, Paul A., Royal Tyrrell Museum of Palaeontology, P.O. Box 7500, Drumheller, AB T0J 0Y0, Canada, Paul.Johnston@gov.ab.ca and COLLOM, Christopher J., Dept. of Earth Sciences, Mt. Royal College, 4825 Richard Road S.W, Calgary, AB T3E 6K6, Canada,
3:30 PM PALAEOBIOLOGY OF A 1640 MA HYDROTHERMAL SYSTEM: WALTER, Malcolm1, CHEN, Junhong1, LOGAN, Graham2, and SUMMONS, Roger E.2, (1) Australian Centre for Astrobiology, Macquarie Univ, Sydney NSW 2109, Australia, Malcolm.walter@mq.edu.au, (2) Australian Geol Survey Organisation, Australia
3:50 PM VOLCANIC DEGASSING, HYDROTHERMAL CIRCULATION AND THE FLOURISHING OF EARLY LIFE ON EARTH: NEW EVIDENCE FROM THE C. 3460 MA WARRAWOONA GROUP, PILBARA CRATON, WESTERN AUSTRALIA: VAN KRANENDONK, Martin J., Geol Survey of Western Australia, 100 Plain St, East Perth, WA 6004 Australia, m.vankranendonk@dme.wa.gov.au.
4:10 PM A 3.75 GA SEA-FLOOR HYDROTHERMAL SYSTEM FROM THE ISUA GREENSTONE BELT, WEST GREENLAND: ROLLINSON, Hugh, Geography and Environmental Management Research Unit, Cheltenham & Gloucester College of HE, Francis Close Hall, Swindon Road, Cheltenham, GL50 4AZ, United Kingdom, hrollinson@chelt.ac.uk, APPEL, Peter, Geological Survey of Denmark and Greenland, Copenhagen, Denmark, and TOURET, Jacques, Department of Petrology, Vrije Universiteit, Amsterdam, Amsterdam, Netherlands,

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