2004 Denver Annual Meeting (November 7–10, 2004)
Session No. 105 Monday, November 8, 2004
1:30 PM-5:30 PM, Colorado Convention Center: Ballroom 2&3

P1. Early Paleoproterozoic (2.5–2.0 Ga) Events and Rates: Bridging Field Studies and Models

Andrey Bekker, Mark E. Barley and Robert H. Rainbird, Presiding
 Paper #Start Time
105-11:30 PM LINKED HYDROSPHERIC AND ATMOSPHERIC CHANGES ATTENDING PROTRACTED BREAKUP OF THE LATE ARCHEAN SUPERCONTINENT: BEKKER, Andrey, Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, NW, Washington, DC 20015, a.bekker@gl.ciw.edu.
105-21:50 PM LATE ARCHEAN TO EARLY PALEOPROTEROZOIC GLOBAL TECTONICS AND ENVIRONMENTAL CHANGE: BARLEY, Mark E., School of Earth and Geographical Sciences, The Univ of Western Australia, 35 Stirling Highway, Crawley 6009 Australia, mbarley@segs.uwa.edu.au.
105-32:10 PM TIMING AND PROVENANCE OF NEOARCHEAN-PALEOPROTEROZOIC UNCONFORMITY BOUNDED SEQUENCES ON THE KAAPVAAL CRATON: BEUKES, Nicolas J.1, DORLAND, Herman C.1, GUTZMER, Jens1, EVANS, David A.D.2, and ARMSTRONG, Richard A.3, (1) Department of Geology, Rand Afrikaans Univ, PO Box 524, Auckland Park, 2006, njb@rau.ac.za, (2) Geology & Geophysics, Yale Univ, PO Box 208109, 210 Whitney Ave, New Haven, CT 06520-8109, (3) Research School of Earth Sciences, Australian National Univ, Canberra
105-42:30 PM DEEP-MARINE DEPOSITED HAMERSLEY BIFS: SIGNIFICANCE TO ENVIRONMENTAL CHANGE ACROSS THE ARCHEAN-PALEOPROTEROZOIC BOUNDARY: KRAPEZ, Bryan, School of Earth and Geographical Sciences, The Univ of Western Austrtalia, 35 Striling Highway, Crawley 6009, bryank@segs.uwa.edu.au.
105-52:50 PM 2.5-2.4 GA GLOBAL MAGMATISM: REMNANTS OF SUPERCONTINENTS OR PRODUCTS OF SUPERPLUMES?: HEAMAN, Larry M., Earth and Atmospheric Sciences, Univ of Alberta, 1-26 ESB, Edmonton, AB T6G 2E3 Canada, Larry.Heaman@UAlberta.ca.
105-63:10 PM COLLISIONAL OROGENESIS AT CA. 2.35 GA IN THE RAE DOMAIN, WESTERN CHURCHILL PROVINCE, NUNAVUT, CANADA: BERMAN, Robert G.1, SANBORN-BARRIE, Mary1, STERN, Richard A.2, JERCINOVIC, Michael J.3, and SKULSKI, Tom2, (1) Geol Survey of Canada, 615 Booth St, Ottawa, ON K1A0E8, Canada, rberman@nrcan.gc.ca, (2) Geol Survey of Canada, 601 Booth Street, Ottawa, ON K1A 0E8, Canada, (3) Department of Geosciences, Univ of Massachusetts, 611 North Pleasant Street, Amherst, MA 01003-9297
105-73:25 PM CHARACTERISTICS AND COMPARISON OF THE BASAL PALEOPROTEROZOIC COVER SEQUENCE OF THE SUPERIOR AND WESTERN CHURCHILL PROVINCES OF LAURENTIA: RAINBIRD, Robert H.1, DAVIS, William J.1, and PEHRSSON, Sally2, (1) Geol Survey of Canada, 615 Booth St, Room 609, Ottawa, ON K1A 0E9, Canada, rrainbir@nrcan.gc.ca, (2) Continental Geoscience Division, Geol Survey of Canada, 601 Booth Street, Otawa, ON K1A 0E8, Canada
105-83:45 PM PROGRESS TOWARD RECONSTRUCTING PALEOPROTEROZOIC SUPERCONTINENTS: EVANS, David A.D., Geology & Geophysics, Yale Univ, PO Box 208109, 210 Whitney Ave, New Haven, CT 06520-8109, dai.evans@yale.edu.
105-94:00 PM EARLY PALEOPROTEROZOIC EVENTS AND PROCESSES: AN OVERVIEW: HOLLAND, Heinrich D., Earth and Planetary Sciences, Harvard Univ, 20 Oxford Street, Cambridge, MA 02138, holland@eps.harvard.edu.
105-104:20 PM PALEOPROTEROZOIC EARTH: THE RISE OF ATMOSPHERIC O2 AND THE DECLINE OF CH4: KASTING, James F., Geosciences, Penn State Univ, 443 Deike, University Park, PA 16802, kasting@essc.psu.edu.
105-114:40 PM RISES AND FALLS OF THE ATMOSPHERIC OXYGEN IN EARLY PALEOPROTEROZOIC: PAVLOV, Alexander A., Laboratory for Atmospheric and Space Physics, Univ of Colorado at Boulder, Duane Physics Building, 392 UCB, Boulder, CO 80302, pavlov@lasp.colorado.edu and BEKKER, Andrey, Geophysical Lab, Carnegie Institution of Washington, 5251 Broad Branch Road, Washington, DC 20015
105-124:55 PM GLOBAL RECORDS OF THE PALEOPROTEROZOIC CARBON ISOTOPE EXCURSION: KARHU, Juha A., Department of Geology, Univ of Helsinki, PO BOX 64, Helsinki 00014, Juha.Karhu@helsinki.fi.
105-135:10 PM WHY DID THE RISE OF OXYGEN PRECEDE ITS "CAUSE"?: KUMP, Lee R., NASA Astrobiology Institute and Department of Geosciences, Penn State, 535 Deike Bldg, University Park, PA 16802, lkump@psu.edu.

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