Geological Society of America

8:00 AM

OXYGEN ISOTOPES IN EARLY ARCHEAN ZIRCONS: CORRELATING IN-SITU δ18O ION PROBE ANALYSES WITH CONCORDANT U/PB DOMAINS AND CL ZONING

Aaron J. Cavosie, University of Wisconsin, Madison, WI and J.W. Valley, University of Wisconsin-Madison, Madison, WI and Simon A. Wilde, Curtin University of Technology, Perth, N/A and The Eimf, Edinburgh, N/A

79579 (Technical Sessions)

8:15 AM

ISOTOPIC CONSTRAINTS ON THE SOURCES OF FE IN BANDED IRON FORMATIONS

C.M. Johnson, Univ of Wisconsin, Madison, WI and Brian Beard, Univ of Wisconsin-Madison, Madison, WI

80746 (Technical Sessions)

8:30 AM

CHARACTERIZATION OF THE CARBONACEOUS MATERIAL IN THE 3.4 GA STRELLEY POOL CHERT, PILBARA CRATON, WESTERN AUSTRALIA

Craig P. Marshall, Macquarie Univ, Sydney, N/A and Abigail C. Allwood, Macquarie Univ, Sydney, N/A and Malcolm R. Walter, Macquarie Univ, Sydney, N/A and Martin J. Van Kranendonk, Geol Survey of Western Australia, Perth, N/A and Roger E. Summons, MIT, Cambridge, MA

76104 (Technical Sessions)

8:45 AM

LIFE AT 3.4 GA: PALEOBIOLOGY AND PALEOENVIRONMENT OF THE STROMATOLITIC STRELLEY POOL CHERT, PILBARA CRATON, WESTERN AUSTRALIA

Abigail C. Allwood, Macquarie Univ, Sydney, N/A and Malcolm R. Walter, Australian Centre for Astrobiology, Macquarie Univ, New South Wales, N/A and Craig P. Marshall, Australian Centre for Astrobiology, Macquarie Univ, Sydney, N/A and Martin J. Van Kranendonk, Geol Survey of Western Australia, East Perth, WA, N/A

78627 (Technical Sessions)

9:00 AM

NEW SHRIMP U-PB ZIRCON AGES FOR THE PALEOARCHEAN TO MESOARCHEAN ROCKS OF THE MINNESOTA RIVER VALLEY

M.E. Bickford, Syracuse Univ, Syracuse, NY and Joseph L. Wooden, Rm. 89, Ion Probe Lab, Stanford, CA and Robert L. Bauer, Univ of Missouri, Columbia, Columbia, MO

75677 (Technical Sessions)

9:15 AM

1.8-1.5 GA ACCRETIONARY TECTONICS ALONG THE SOUTHERN MARGIN OF THE AUSTRALIAN CONTINENT: IMPLICATIONS FOR PALAEOPROTEROZOIC PLATE RECONSTRUCTIONS OF AUSTRALIA AND LAURENTIA

Peter G. Betts, Monash Univ, Clayton, N/A and David Giles, Monash Univ, Clayton, N/A

74304 (Technical Sessions)

9:30 AM

TRACE ELEMENTS AND ND-ISOTOPIC PROVENANCE OF THE MID-PROTEROZOIC VINDHYAN BASIN, INDIA: A MID-PROTEROZOIC FORELAND BASIN?

Ramananda Chakrabarti, Univ of Rochester, Rochester, NY and Asish R. Basu, Univ of Rochester, Rochester, NY and Amitabha Chakrabarti, Indian Institute of Technology, Kharagpur, N/A

78531 (Technical Sessions)

9:45 AM

STRATIGRAPHIC TIMING CONSTRAINTS ON POST-GLACIAL EMPLACEMENT AND EROSIONAL EVENTS PRESERVED IN THE IBEX FORMATION OF DEATH VALLEY CALIFORNIA

Damon P. DeYoung, University of California Riverside, Riverside, CA and Martin J. Kennedy, University of California Riverside, Riverside, CA and Karl R. Thompson, University of California Riverside, Riverside, CA and David D. Mrofka, University of California Riverside, Riverside, CA

74730 (Technical Sessions)

10:00 AM

RE-OS DEPOSITIONAL AGE OF THE NEOPROTEROZOIC ARALKA FORMATION (AMADEUS BASIN, AUSTRALIA) REVISITED

Brian S. Kendall, Univ of Alberta, Edmonton, AB and Robert A. Creaser, Univ of Alberta, Edmonton, AB

76570 (Technical Sessions)

10:30 AM

THE GRENVILLIAN TOMIKO QUARTZITES OF ONTARIO: CORRELATIVE WITH THE BARABOO QUARTZITES OF WISCONSIN OR THE MAZATZAL OROGEN OF NEW MEXICO? IMPLICATIONS FOR THE TECTONIC ARCHITECTURE OF LAURENTIA IN THE GREAT LAKES REGION

Robert Michael Easton, Ontario Geol Survey, Sudbury, ON and Sandra L. Kamo, University of Toronto, Toronto, ON

76216 (Technical Sessions)

10:45 AM

FIRST INVENTORY OF GRENVILLIAN ROCKS IN SOUTH AMERICA

João Orestes Santos, Porto Allegre 90110-150 RS, N/A and Gilmar Jose Rizzotto, CPRM, Rondonia, N/A and C. Dietsch, Univ of Cincinnati, Cincinnati, OH and Paul E. Potter, Univ of Cincinnati, Cincinnati, OH and Robert M. Easton, Ontario Geol Survey, Sudbury, ON

74005 (Technical Sessions)

11:00 AM

METAMORPHISM OF MARBLES IN THE MORIN TERRANE (GRENVILLE PROVINCE, QUEBEC)

William H. Peck, Colgate Univ, Hamilton, NY and Michael T. DeAngelis, Univ of Tennessee, Knoxville, TN and Michael T. Meredith, Univ of Wyoming, Laramie, WY and Etienne Morin, Colgate Univ, Hamilton, NY

78688 (Technical Sessions)

11:30 AM

EVIDENCE FOR COEVAL, NON-COMAGMATIC, RELATIONSHIPS WITHIN THE ADIRONDACK ANORTHOSITE-MANGERITE-CHARNOCKITE-GRANITE (AMCG) SUITE, NEW YORK STATE

James M. McLelland, Skidmore College, Saratoga Springs, NY and Marion E. Bickford, Syracuse Univ, Syracuse, NY and John W. Valley, Univ of Wisconsin, Madison, WI

77793 (Technical Sessions)

197 Precambrian Geology

Presentations