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Northeastern Section - 38th Annual Meeting (March 27-29, 2003)

Session No. 9
Thursday, 27 March 2003: 8:15 AM-12:00 PM

S4. New Developments in Understanding of the Avalon Terrane from the southern Appalachians to Newfoundland I

Cosponsored by IGCP 453—Modern and Ancient Orogens

 

J. B. Murphy and Margaret D. Thompson, Conveners
Paper #
Start Time
 
8:15 AM
Introductory Remarks
1
8:20 AM
NEOPROTEROZOIC - EARLY PALEOZOIC EVOLUTION OF PERI-GONDWANAN TERRANES AND IMPLICATIONS FOR LAURENTIA-GONDWANA CONNECTIONS
MURPHY, J. Brendan, Earth Science, St. Francis Xavier Univ, P.0. BOX 5000, Antigonish, NS B2G 2W5, Canada, PISAREVSKY, Sergei A., Tectonics Special Research Centre, Univ of Western Australia, Crawley, Australia, NANCE, R. Damian, Geological Sciences, Ohio Univ, Athens, OH 45701 and KEPPIE, J. Duncan, Inst. de Geologia, UNAM, Ciudad Universitaria, Mexico DF, 04510, Mexico, bmurphy@stfx.ca, bmurphy@stfx.ca
2
8:40 AM
U-PB AGES OF DETRITAL ZIRCON IN QUARTZITE FROM AVALON AND ADJACENT TERRANES
BARR, Sandra M.1, DAVIS, Don W.2, KAMO, Sandra2 and WHITE, Chris E.3, (1)Geology, Acadia Univ, Wolfville, NS B4P 2R6, Canada, (2)Royal Ontario Museum, 100 Queen's Park, Toronto, ON M5S 2C6, Canada, (3)NS Department of Natural Resources, P.O. Box 698, Halifax, NS B3J 2T9, Canada, sandra.barr@acadiau.ca, sandra.barr@acadiau.ca
3
9:00 AM
BASEMENT BLOCKS IN SOUTHWESTERN CAPE BRETON ISLAND AND ADJACENT MAINLAND NOVA SCOTIA, CANADA, AND THEIR RELATIONSHIP TO THE AVALON TERRANE
WHITE, Chris E., NS Department of Natural Resources, P.O. Box 698, Halifax, NS B3J 2T9, Canada, BARR, Sandra M., Geology, Acadia Univ, Wolfville, NS B4P 2R6, Canada, KETCHUM, John F., Royal Ontario Museum, 100 Queen's Park, Toronto, ON M5S 2C6, Canada and REYNOLDS, Peter H., Earth Sciences, Dalhousie Univ, Halifax, NS B3H 3J5, Canada, whitece@gov.ns.ca, whitece@gov.ns.ca
4
9:20 AM
SENSE OF SHEAR ON LOW-ANGLE NEOPROTEROZOIC DUCTILE SHEAR ZONE, CAPE BRETON, NOVA SCOTIA
WESSEL, Zachary, R.1, NANCE, R. Damian1, KEPPIE, J. Duncan2 and MURPHY, J. Brendan3, (1)Dept. of Geological Sciences, Ohio Univ, Athens, OH 45701, (2)Inst. de Geologia, UNAM, Ciudad Universitaria, Mexico DF, 04510, Mexico, (3)Dept. of Earth Sciences, St. Francis Xavier Univ, P.0. Box 5000, Antigonish, NS B2G 2W5, Canada, nance@ohio.edu, nance@ohio.edu
5
9:40 AM
POTENTIAL FIELD AND PETROPHYSICAL INVESTIGATIONS APPLIED TO TECTONIC ANALYSIS IN THE NORTHERN APPALACHIAN OROGEN
KING, M. Stephen and BARR, Sandra M., Geology, Acadia Univ, Wolfville, NS B4P 2R6, Canada, 1king@ns.sympatico.ca, 1king@ns.sympatico.ca
 
10:00 AM
Break
6
10:20 AM
AVALON—NON-GONDWANAN MICROCONTINENT BY THE LATE PRECAMBRIAN: NEW EVIDENCE FROM THE PROTEROZOIC–CAMBRIAN BOUNDARY INTERVAL
LANDING, Ed, New York State Museum, State Education Department, Albany, NY 12230, elanding@mail.nysed.gov, elanding@mail.nysed.gov
7
10:40 AM
NEW PALEOMAGNETIC POLE FROM THE LATE CAMBRIAN NAHANT GABBRO, NAHANT, MASSACHUSETTS: IMPLICATIONS FOR DRIFT HISTORY OF THE SOUTHEASTERN NEW ENGLAND AVALON ZONE
THOMPSON, Margaret D., Geology Department, Wellesley College, Wellesley, MA 02481, GRUNOW, Anne M., Byrd Polar Research Center, Ohio State Univ, Columbus, OH 43210 and RAMEZANI, Jahandar, Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA 02139, mthompson@wellesley.edu, mthompson@wellesley.edu
8
11:00 AM
U-PB ZIRCON AGE FOR THE DUNN POINT VOLCANICS, ARISAIG, NOVA SCOTIA: IMPLICATIONS FOR THE DRIFT OF AVALONIA AND THE EVOLUTION OF THE IAPETUS AND RHEIC OCEANS
HAMILTON, Mike A., 605 Island Park Cres, Ottawa, ON K1Y 3P4, Canada and MURPHY, J. Brendan, Dept. of Earth Sciences, St. Francis Xavier Univ, P.0. Box 5000, Antigonish, NS B2G 2W5, Canada, bmurphy@stfx.ca, bmurphy@stfx.ca
9
11:20 AM
MOVEMENT DIRECTIONS AND AGE CONSTRAINTS ON MYLONITE ZONES NEAR THE AVALON TERRANE BOUNDARY NW OF BOSTON, MASSACHUSETTS: IMPLICATIONS FOR THE ACCRETION OF AVALON IN SE NEW ENGLAND
KOHUT, Edward J., Dept. of Geosciences, Oregon State Univ, Corvallis, OR 97331 and HEPBURN, J. Christopher, Department of Geology and Geophysics, Boston College, Chestnut Hill, MA 02467-3809, Kohute@geo.orst.edu, Kohute@geo.orst.edu
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