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Earth System Processes - Global Meeting (June 24-28, 2001)

Session No. 37
Wednesday, 27 June 2001: 10:00 AM-4:30 PM

T4. Critical Transitions in Earth History and Their Causes

 

Ian Dalziel and C. McA. Powell, Advocates
Paper #
Start Time
 
10:00 AM
Introductory Remarks
0
10:10 AM
WHAT CAUSED THE GREATEST OF ALL MASS EXTINCTIONS, AT THE END OF THE PERMIAN?
HALLAM, Antony, School of Earth Sciences, Univ of Birmingham, Edgbaston, Birmingham, B15 2TT, England, A.Hallam@bham.ac.uk, A.Hallam@bham.ac.uk
0
10:40 AM
FORMATION OF TERRESTRIAL PLANETS IN THE UNIVERSE: THE FIRST CRITICAL TRANSITION
LINEWEAVER, Charles H., Physics, Univ of New South Wales, Sydney, 2052, Australia, charley@bat.phys.unsw.edu.au, charley@bat.phys.unsw.edu.au
0
11:00 AM
POSSIBLE ULTIMATE CAUSE OF THE K-T IMPACT
VARADI, Ferenc, GHIL, Michael and RUNNEGAR, Bruce, Institute of Geophysics and Planetary Physics, Univ of California, Los Angeles, CA 90095-1567, varadi@atmos.ucla.edu, varadi@atmos.ucla.edu
 
11:20 AM
Break
0
11:30 AM
A VENUS ANALOGUE OF CATASTROPHIC MANTLE OVERTURNS ON PRECAMBRIAN EARTH
GHAIL, Richard, T.H. Huxley School, Imperial College, London, SW7 2BP, United Kingdom, R.Ghail@ic.ac.uk, R.Ghail@ic.ac.uk
0
11:50 AM
PRE-RODINIAN OPHIOLITES; THEIR TECTONIC AND ENVIRONMENTAL IMPLICATIONS
MOORES, Eldridge M., Department of Geology, Univ of California, Davis, CA 95616, moores@geology.ucdavis.edu, moores@geology.ucdavis.edu
0
12:10 PM
COPS (CLIMATIC OSCILLATION PERIODS) AT THE CROSSROADS OF EARTH EVOLUTION
YOUNG, Grant M., Univ Western Ontario, Biology & Geology Bldg Rm 128A, London, ON N6A 5B7, Canada, gyoung@julian.uwo.ca, gyoung@julian.uwo.ca
 
12:30 PM
Lunch
0
2:00 PM
THE ASCENT OF THE DINOSAURS: ECOLOGICAL RELEASE AFTER THE TRIASSIC-JURASSIC MASS EXTINCTION IN CONTINENTAL ENVIRONMENTS
OLSEN, Paul E. and RAINFORTH, Emma C., Lamont-Doherty Earth Observatory, Rt. 9W, Palisades, NY 10964-8000, polsen@ldeo.columbia.edu, polsen@ldeo.columbia.edu
0
2:30 PM
RODINIA TO GONDWANALAND: GROWTH OF THE PACIFIC OCEAN AND DESTRUCTION OF THE MOZAMBIQUE AND BRAZILIDE OCEANS
POWELL, Christopher McA and PISAREVSKY, Sergei A., Tectonics Special Research Centre, The University of Western Australia, 35 Stirling Hwy, Crawley, Western Australia, 6009, Australia, cpowell@tsrc.uwa.edu.au, cpowell@tsrc.uwa.edu.au
0
2:50 PM
EXPLAINING THE CAMBRIAN EXPLOSION: CAUSE, CONSEQUENCE OR COINCIDENCE?
BUTTERFIELD, Nicholas J., Univ Cambridge, Downing St, Cambridge, CB2 3EQ, United Kingdom, njb1005@esc.cam.ac.uk, njb1005@esc.cam.ac.uk
 
3:10 PM
Break
0
3:20 PM
AN OCEANOGRAPHIC MECHANISM FOR CARBON CYCLE CHANGES AND GLACIATION IN THE LATE ORDOVICIAN
HOLGATE, Simon J.1, MARSHALL, James D.2, WILLIAMS, Richard G.1 and BRENCHLEY, Patrick J.2, (1)Oceanography Laboratories, Univ of Liverpool, PO Box 147, Liverpool, L69 3BX, United Kingdom, (2)Univ Liverpool, PO Box 147, Liverpool, L69 3BX, United Kingdom, sholgate@liv.ac.uk, sholgate@liv.ac.uk
0
3:40 PM
THE CLIMATIC CONSEQUENCES OF A RARE ORBITAL ANOMALY AT THE OLIGOCENE/MIOCENE BOUNDARY (23 MYA)
ZACHOS, James C.1, SHACKLETON, Nicholas J.2, REVENAUGH, Justin S.1, PÄLIKE, Heiko2 and FLOWER, Benjamin P.3, (1)Earth Sciences, Univ of California, Santa Cruz, Earth and Marine Sciences Building, Santa Cruz, CA 95064, (2)Godwin Laboratory for Quaternary Studies, Cambridge Univ, Cambridge, CB2 3SA, United Kingdom, (3)College of Marine Science, Univ of South Florida, St. Petersburg, FL 33701, jzachos@es.ucsc.edu, jzachos@es.ucsc.edu
0
4:00 PM
THE TRIGGERING MECHANISM(S) OF MASSIVE METHANE HYDRATE DISSOCIATION AT THE P/E BOUNDARY
THOMAS, Debra1, ZACHOS, James C.2, BRALOWER, Tim1 and THOMAS, Ellen3, (1)Geology, Univ of North Carolina, Chapel Hill, NC 27599, (2)Earth Sciences, Univ of California, Santa Cruz, Earth and Marine Sciences Building, Santa Cruz, CA 95064, (3)Earth & Environmental Sciences, Wesleyan Univ, 265 Church Street, Middletown, CT 06459-0139, jzachos@es.ucsc.edu, jzachos@es.ucsc.edu
 
4:20 PM
Discussion
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