Session No. 4 Thursday, April 11, 2002

8:00 AM-12:00 PM, Sul Ross State University: Conf.B
S5. Precambrian Geology of Southern Laurentia
Melanie A.W. Barnes, Presiding
Start Time
8:00 AM Introductory Remarks
8:20 AM EARLY PALEOPROTEROZOIC RIFTING OF NORTHEASTERN BALTICA-LAURENTIA: LANDEN, Laura S., Geology Dept, Univ of Helsinki, P.O. Box 64, Helsinki, FIN-00014, Finland, laura.landen@helsinki.fi, RAMO, O. Tapani, Univ Helsinki, PO Box 11, Helsinki, 00014, Finland, and KARINEN, Tuomo, Geological Survey of Finland, P.O. Box 77, Rovaniemi, FIN-96101, Finland
8:40 AM CONTINENTAL GROWTH ALONG THE SOUTHERN MARGIN OF LAURENTIA DURING THE LATE PALEOPROTEROZOIC AND EARLY MESOPROTEROZOIC: ROHS, C. Renee, Geology/Geography, Northwest Missouri State Univ, 800 University Dr, Maryville, MO 64468, rrohs@mail.nwmissouri.edu and VAN SCHMUS, W. R., Geology, Univ of Kansas, 120 Lindley Hall, Lawrence, KS 66045
9:00 AM DEFORMATIONAL ANALYSIS OF THE MESOPROTEROZOIC SIXMILE ANTIFORM AND FLANKING SHEAR ZONES, SOUTH-CENTRAL LLANO UPLIFT, TEXAS: MCDANIEL, Trent W., BARKER, Chris A., and GÖBEL, Volker W., Dept. of Geology, Stephen F. Austin State Univ, Box 13011, Nacogdoches, TX 75962, rockwiggler@hotmail.com
9:20 AM LOW-PRESSURE DEFORMATION AND METAMORPHISM OF THE PROTEROZOIC LLANO UPLIFT, CENTRAL TEXAS: REED, Robert M., Bureau of Economic Geology, John A. and Katherine G. Jackson School of Geosciences, The Univ of Texas at Austin, Box X, University Station, Austin, TX 78713-8924, rob.reed@beg.utexas.edu and ROUGVIE, James R., Dept. of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560-0119
9:40 AM GRENVILLE OROGENESIS ALONG THE SOUTHERN LAURENTIAN MARGIN: CONTRASTS BETWEEN THE EASTERN AND WESTERN LLANO UPLIFT, CENTRAL TEXAS: MOSHER, Sharon and HUNT, Brian B., Univ Texas - Austin, Dept Geological Sciences, Austin, TX 78712, mosher@mail.utexas.edu
10:00 AM Break
10:20 AM CRUSTAL EVOLUTION IN THE ROCKY MOUNTAIN REGION: KELLER, G. Randy1, KARLSTROM, Karl2, MILLER, Kate1, SNELSON, Catherine3, and ANDRONICOS, Christopher4, (1) Geological Sciences, University of Texas at El Paso, El Paso, TX 79968, keller@geo.utep.edu, (2) Earth and Planetary Sciences, Univ of New Mexico, Albuquerque, NM 87131, (3) Department of Geoscience, Univ of Nevada, Las Vegas, NV 89154-4010, (4) Geological Sciences, Univ of Texas at El Paso, El Paso, TX 79968
10:40 AM GEOCHRONOLOGY OF PROTEROZOIC GRANITIC AND MAFIC ROCKS IN THE NORTHERN BURRO MOUNTAINS, GRANT COUNTY, NEW MEXICO: MCLEMORE, Virginia T.1, RÄMÖ, O. Tapani2, HAMILTON, Michael A.3, KOSUNEN, Paula J.4, and HEIZLER, Matt T.1, (1) New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, 801 Leroy Pl, Socorro, NM 87801, ginger@gis.nmt.edu, (2) Geology Dept, Univ. of Helsinki, P.O. Box 64, Helsinki, FIN-00014, Finland, (3) Geol Survey of Canada, 601 Booth Street, Ottawa, ON K1A 0E8, Canada, (4) Geology Dept, Univ of Helsinki, P.O. Box 64, Helsinki, FIN-00014, Finland
11:00 AM THE PRECAMBRIAN EVOLUTION OF THE BURRO MOUNTAINS, SOUTHWEST NEW MEXICO, AS DETERMINED BY ELECTRON MICROPROBE U-PB DATING OF MONAZITE IN METAPELITES: SANDERS, Amos E. and AMATO, Jeffrey M., Geological Sciences, New Mexico State University, MSC 3AB, P.O. Box 30001, Las Cruces, NM 88003-8001, amsander@nmsu.edu
11:20 AM ND ISOTOPES OF GRANITE MAGMATISM, HIDALGO AND GRANT COUNTIES, NEW MEXICO: RAMO, O. Tapani, Univ Helsinki, PO Box 11, Helsinki, 00014, Finland, tapani.ramo@helsinki.fi, MCLEMORE, Virginia T., New Mexico Bureau of Mines and Mineral Resources, New Mexico Institute of Mining and Technology, 801 Leroy Pl, Socorro, NM 87801, and KOSUNEN, Paula J., Geology Dept, Univ of Helsinki, P.O. Box 64, Helsinki, FIN-00014, Finland
11:40 AM TECTONOMAGMATIC EVOLUTION OF THE THARWAH SEGMENT OF THE NEOPROTEROZOIC BIR UMQ-NAKASIB SUTURE ZONE, ARABIAN-NUBIAN SHIELD, WESTERN SAUDI ARABIA: HARGROVE, Ulysses S.1, STERN, Robert J.1, ABDELSALAM, Mohamed G.1, LEYBOURNE, Matthew I.1, and JOHNSON, Peter R.2, (1) Department of Geosciences, Univ of Texas at Dallas, P.O. Box 830688, Richardson, TX 75083-0688, ushgeo@utdallas.edu, (2) Saudi Geol Survey, P.O. Box 54141, Jeddah, 21514, Saudi Arabia

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