Session No. 96 Tuesday, November 6, 2001

1:30 PM-5:30 PM, Hynes Convention Center: 302
T70. Ophiolites as Problem and Solution in the Evolution of Geological Thinking II
Yildirim Dilek and Sarah E. Newcomb, Presiding
 Paper #Start Time
96-01:30 PM OPHIOLITE STUDIES AND GLOBAL GEOCHEMICAL CYCLES: GREGORY, R. T., Department of Geological Sciences, Southern Methodist Univ, Stable Isotope Laboratory, PO Box 750395, Dallas, TX 75275, bgregory@mail.smu.edu.
96-01:45 PM OPHIOLITES AS FAITHFUL RECORDS OF THE OXYGEN ISOTOPE RATIO OF ANCIENT SEAWATER: MUEHLENBACHS, Karlis, Earth and Atmospheric Sciences, Univ of Alberta, Edmonton, AB T6G 2E3 Canada, kmuehlen@gpu.srv.ualberta.ca.
96-02:00 PM THE ROLE OF OPHIOLITE STUDIES IN CONSTRAINING SEAWATER CIRCULATION AND ALTERATION OF MODERN OCEANIC CRUST: STAKES, Debra S., Monterey Bay Aquarium Rsch Institute, 7700 Sandholt Road, Moss Landing, CA 95039, debra@mbari.org and TAYLOR, Hugh P. Jr, Division of Geological and Planetary Sciences, California Institute of Technology, MS100-23, Pasadena, CA 91125
96-02:15 PM THE EFFECT OF INCREASED SLOW SPREADING EXTENSION ON THE OCEAN CRUST DIKE/BASALT HYDROTHERMAL SULFUR ANOMALY (MACQUARIE ISLAND, SOUTHERN OCEAN): DAVIDSON, Garry J., Centre for ore Deposit Research, Univ of Tasmania, GPO Box 252-79, Hobart, 7001, Australia, Garry.Davidson@utas.edu.au, ALT, Jeffrey C., Department of Geological Sciences, The Univ of Michigan, 2534 C.C. Little Building, Ann Arbor, MI MI48109-1063, RICK, Varne, School of Earth Sciences, Univ of Tasmania, GPO Box 252-79, Hobart, 7001, Australia, and BROWN, Anthony V., Mineral Resources Tasmania, PO Box 56, Rosny Park, 7018, Australia
96-02:30 PM BIO-INTERACTION WITH BASALTIC GLASS AND ITS IMPORTANCE IN MAPPING THE DEPTH OF OCEANIC BIOSPHERE: FURNES, Harald1, THORSETH, Inngun2, MUEHLENBACHS, Karlis3, TORSVIK, Terje4, STAUDIGEL, Hubert5, and TUMYR, Ole1, (1) Geological Institute, Univ of Bergen, Allegt. 41, 5007 Bergen, Norway, harald.furnes@geol.uib.no, (2) Geological Institute, University of Bergen, Allegt. 41, 5007 Bergen, Norway, (3) Earth and Atmospheric Sciences, Univ of Alberta, Edmonton, AB T6G 2E3, Canada, (4) Microbiology, Univ of Bergen, Jahnebakken 5, Bergen, 5020, Norway, (5) Scripps Institute Oceanography, 9500 Gilman Dr Dept 208, La Jolla, CA 92093-0208
 2:45 PM OPEN DISCUSSION
 3:00 PM BREAK
96-03:15 PM RECENT DEVELOPMENTS IN UNDERSTANDING THE EVOLUTION OF OPHIOLITES : AN OVERVIEW OF NEW GEOCHEMICAL AND PETROGENETIC MODELS FOR OPHIOLITES OF THE SW PACIFIC FROM THE POYA TERRANE, NEW CALEDONIA AND THE TANGIHUA COMPLEX, NEW ZEALAND: NICHOLSON, Kirsten Ngaire, Geology, Ball State Univ, Muncie, IN 47306, k.nicholson@auckland.ac.nz and BLACK, Philippa M., Geology, Univ of Auckland, Private bag 92019, Auckland, New Zealand
96-03:30 PM THE COAST RANGE OPHIOLITE, CALIFORNIA: MULTISTAGE ORIGIN OF A SUPRA-SUBDUCTION ZONE OPHIOLITE: SHERVAIS, John W., Dept Geology, Utah State Univ, 4505 Old Main Hill, Logan, UT 84322-4505, shervais@cc.usu.edu.
96-03:45 PM WHAT CONSTITUTES "EMPLACEMENT" OF AN OPHIOLITE?: WAKABAYASHI, John, 1329 Sheridan Lane, Hayward, CA 94544, wako@tdl.com and DILEK, Yildirim, Geology, Miami Univ, Oxford, OH 45056
96-04:00 PM A COMPARATIVE STUDY OF TWO OPHIOLITIC MÉLANGES IN THE CALIFORNIA COAST RANGES AND TIBET, WITH IMPLICATIONS ON DISMEMBERMENT PROCESSES OF OCEANIC CRUST: HUOT, François1, MAURY, René C.1, and HÉBERT, Réjean2, (1) UMR 6538 "Domaines Océaniques", UBO-IUEM, Place Nicolas Copernic, Plouzané, 29280, France, franhuot@sdt.univ-brest.fr, (2) Département de géologie et de génie géologique, Université Laval, Ste-Foy, QC G1K 7P4, Canada
96-04:15 PM THE DISCOVERY OF THE ANKARA MELANGE AND ITS UNSUNG HERO OGUZ EROL: SENGOR, A.M.C., ITU Maden Fakultesi, Jeoloji Bolumu, Ayazaga, Istanbul 80626 Turkey, sengor@itu.edu.tr.
96-04:30 PM OPHIOLITE OBDUCTION AND PLATE MARGIN EVOLUTION: EVIDENCE FROM THE OMAN MOUNTAINS: GRAY, D. R., Earth Sciences, Monash Univ, Clayton, 3168, Australia, dgray@mail.earth.monash.edu.au and GREGORY, R. T., Department of Geological Sciences, Southern Methodist Univ, Stable Isotope Laboratory, PO Box 750395, Dallas, TX 75275
96-04:45 PM SPINEL COMPOSITIONS AS CLUES TO THE ORIGIN AND TECTONIC SIGNIFICANCE OF METADUNITE BODIES IN THE BLUE RIDGE BELT OF THE SOUTHERN APPALACHIAN OROGEN: RAYMOND, Loren A. and ALLAN, James F., Department of Geology, Appalachian State Univ, Boone, NC 28608, raymondla@appstate.edu
96-05:00 PM THE CHOATE MINE: A REPRESENTATIVE HISTORY OF CHROMITE MINING FROM AN OPHIOLITE IN MARYLAND: JOHNSSON, Harald B. III, 2622 Deer Park Road, Finksburg, MD 21048, JohnnyJ@ArundelCorp.com.
 5:15 PM DISCUSSION & CONCLUDING REMARKS

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