Geological Society of America

1:10 PM

James S. Scoates, University of British Columbia, Vancouver, BC and Corey J. Wall, University of British Columbia, Vancouver, BC

249314 (Technical Sessions)

1:30 PM

AGES OF THE BUSHVELD COMPLEX

Corey J. Wall, University of British Columbia, Vancouver, BC and James S. Scoates, University of British Columbia, Vancouver, BC and Richard M. Friedman, University of British Columbia, Vancouver, BC and Jill VanTongeren, Rutgers University, Piscataway, NJ and Edmond A. Mathez, American Museum of Natural History, New York, NY

248285 (Technical Sessions)

1:45 PM

THE GEOMETRY OF THE NORTHERN LOBE OF THE BUSHVELD COMPLEX: IMPLICATIONS FOR INTRUSION VOLUMES AND FEEDER LOCATIONS

Carol Finn, U.S. Geological Survey, Denver, CO and Janine Cole, Pretoria, N/A and Tshepo David Khoza, University of Witwatersrand, Wits, N/A and Susan J. Webb, University of the Witwatersrand, Johannesburg, N/A and Paul Bedrosian, U.S. Geological Survey, Denver, CO

249610 (Technical Sessions)

2:00 PM

GEOPHYSICAL IDENTIFICATION OF MAFIC-ULTRAMAFIC INTRUSIONS IN PLUME CENTER REGIONS

Jennifer Blanchard, Carleton University, Ottawa, ON and Richard Ernst, Carleton University, Ottawa, ON and Claire Samson, Carleton University, Ottawa, ON and Alan King, Sudbury, ON

246530 (Technical Sessions)

2:15 PM

CHARACTERIZATION OF HYDROTHERMAL ALTERATION RELATED TO MAGMATIC NI-CU-PGE MINERALIZATION AT THE NICKEL RIM SOUTH DEPOSIT, SUDBURY, ONTARIO

R. Craig Stewart, Laurentian University, Sudbury, ON and Daniel Kontak, Laurentian University Ramsey Lake Road, Sudbury, ON and Mike Sweeny, A Glencore Company, Falconbridge, ON

249074 (Technical Sessions)

2:30 PM

GEOLOGIC AND GEOCHEMICAL ATTRIBUTES OF THE BEAVER RIVER DIABASE AND GREENSTONE FLOW: TESTING A POSSIBLE INTRUSIVE-VOLCANIC CORRELATION IN THE 1.1 GA MIDCONTINENT RIFT

Michael S. Doyle, University of Minnesota Duluth, Duluth, MN and James D. Miller, University of Minnesota Duluth, Duluth, MN

244113 (Technical Sessions)

2:45 PM

U-PB ZIRCON AGES IN LOWER CRUSTAL XENOLITHS FROM THE SOUTHERN SUPERIOR PROVINCE:  EVIDENCE FOR ONSET OF SUPERCONTINENT BREAKUP AT 1.4 GA BENEATH THE UPPER MICHIGAN PENINSULA? 

Pamela Kempton, Kansas State University, Manhattan, KS and Robert E. Zartman, MIT, Cambridge, MA and Hilary Downes, Birkbeck, University of London, London and J.B. Paces, U.S. Geological Survey, Denver, CO

250381 (Technical Sessions)

3:15 PM

USING U/PB GEOCHRONOLOGY TO DETERMINE THE TIMING AND TEMPO OF THE SIBERIAN TRAPS LARGE IGNEOUS PROVINCE MAGMATISM

Seth D. Burgess, Massachusetts Institute of Technology, Cambridge, MA and Samuel A. Bowring, Massachusetts Institute of Technology, Cambridge, MA

244825 (Technical Sessions)

3:35 PM

GEOCHEMICAL INSIGHTS ON THE EARLY CRETACEOUS HIGH ARCTIC LIP

Cole G. Kingsbury, Carleton University, Ottawa, ON and Richard E. Ernst, Carleton University, Ottawa, ON and Brian Cousens, Carleton University, Ottawa, ON and Marie-Claude Williamson, Ottawa, ON

243832 (Technical Sessions)

3:50 PM

DELINEATING THE EXMOUTH MANTLE PLUME (NW AUSTRALIA): IMPLICATIONS FOR THE ORIGIN OF VOLCANIC MARGINS

Max Rohrman, Houston, TX

245014 (Technical Sessions)

4:05 PM

PICRITIC PORPHYRITES AND ASSOCIATED BASALTS FROM THE REMNANT COMEI LARGE IGNEOUS PROVINCE IN SE TIBET: RECORDS OF A MANTLE PLUME ACTIVITY

Ying Xia, China University of Geosciences, Beijing, N/A and Di-Cheng Zhu, China University of Geosciences, Beijing and Qing Wang, China University of Geosciences, Beijing and Zhi-Dan Zhao, China University of Geosciences, Beijing, N/A and Dong Liu, China University of Geosciences, Beijing, N/A and Li-Quan Wang, Chengdu Institute of Geology and Mineral Resources, Chengdu, N/A and Xuan-Xue Mo, China University of Geosciences, Beijing, N/A

245128 (Technical Sessions)

4:20 PM

THE ENIGMATIC ORIGIN OF THE GIANT SEMI-CIRCULAR LAKE VICTORIA DYKE SWARM

Martin B. Klausen, Stellenbosch University, Stellenbosch, N/A and Hannu Mäkitie, Geological Survey of Finland, Espoo, N/A and Richard Ernst, Carleton University, Ottawa, ON

242308 (Technical Sessions)

4:35 PM

GIANT CIRCUMFERENTIAL MAFIC DYKE SWARMS ON EARTH, MARS AND VENUS

Richard E. Ernst, Carleton University, Ottawa, ON and Kenneth L. Buchan, Geological Survey of Canada, Ottawa, ON and Hannu Mäkitie, Geological Survey of Finland, Espoo, N/A and Martin B. Klausen, Stellenbosch University, Stellenbosch, N/A and Claire Samson, Carleton University, Ottawa, ON and Eric B. Grosfils, Pomona College, Claremont, CA

243079 (Technical Sessions)

T262 Some New Gloss on Old Lips: Implications for Continental Reconstructions and Metallogeny I

Presentations