Joint 69th Annual Southeastern / 55th Annual Northeastern Section Meeting - 2020

Session No. 3
Friday, 20 March 2020: 8:00 AM-12:00 PM
Regency Ballroom B (Hyatt Regency Reston)

S2. The Appalachians, from North to South, from Crust to Mantle I

GSA Structural Geology and Tectonics Division; GSA Geophysics and Geodynamics Division

 

Allison R. Severson, Yvette D. Kuiper, Maureen D. Long, Lara S. Wagner and Christopher M. Bailey, Conveners
Paper #
Start Time
3-1
8:00 AM
MAGNETOTELLURIC INSIGHTS INTO THE LITHOSPHERIC ARCHITECTURE AND GEODYNAMIC HISTORY OF THE EASTERN UNITED STATES
MURPHY, Benjamin S., USGS, Geology, Geophysics, and Geochemistry Science Center, Denver, CO 80225; USGS, Geomagnetism Program, Golden, CO 80401, EGBERT, Gary D., College of Earth, Oceanic and Atmospheric Sciences, Oregon State University, 104 CEOAS Admin. Bldg, Corvallis, OR 97331-5503, BEDROSIAN, Paul A., USGS, Geology, Geophysics, and Geochemistry Science Center, Denver, CO 80225 and KELBERT, Anna, USGS, Geomagnetism Program, Golden, CO 80401
3-2
8:20 AM
SEISMIC CHARACTERISTICS OF THE EASTERN NORTH AMERICAN CRUST WITH PS CONVERTED WAVES: TERRANE ACCRETION AND MODIFICATION OF CONTINENTAL CRUST
LI, Cong, Geoscience, University of Massachusetts, Amherst, 279 Amherst Rd, Apt 43, Sunderland, MA 10375, GAO, Haiying, Department of Geosciences, University of Massachusetts Amherst, 627 N Pleasant St, Amherst, MA 01003 and WILLIAMS, Michael L., Division of Air Quality, Utah Deparment of Environmental Quality, Salt Lake City, UT 84106
3-3
8:40 AM
PRELIMINARY U-PB GEOCHRONOLOGY OF PROTEROZOIC AND PALEOZOIC ROCKS BENEATH THE ATLANTIC COASTAL PLAIN FROM MARYLAND TO SOUTH CAROLINA
HORTON Jr., J. Wright1, MCALEER, Ryan J.1, HOLM-DENOMA, Christopher S.2, PIANOWSKI, Laura S.2 and VAZQUEZ, Jorge A.3, (1)U.S. Geological Survey, Florence Bascom Geoscience Center, 926A National Center, Reston, VA 20192, (2)U.S. Geological Survey, Geology, Geophysics, and Geochemistry Science Center, Denver Federal Center, Denver, CO 80225, (3)U.S. Geological Survey, 345 Middlefield Rd, Menlo Park, CA 94025
3-4
9:00 AM
IAPETUS SHRUGGED: THE EARLY RIFTING RECORD OF LAURENTIA IN THE NEW ENGLAND AND QUÉBEC APPALACHIANS AND THE GENERATION OF PERI-LAURENTIAN MICROCONTINENTS
KARABINOS, Paul, Dept. Geosciences, Williams College, Williamstown, MA 01267, CROWLEY, James L., Department of Geosciences, Boise State University, Boise, ID 83725, JARET, Steven J., Earth and Planetary Sciences, American Museum of Natural History, 200 Central Park West, New York, NY 10024, HODGIN, E.B., Department of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106 and MACDONALD, Francis A., Department of Earth Science, UCSB, 2111 Webb Hall, Santa Barbara, CA 93109
3-5
9:20 AM
STRAIN PATTERNS IN THE TACONIC ALLOCHTHON OF THE NORTHERN APPALACHIANS AND THEIR BEARING ON DEFORMATION PARTITIONING IN LOW-GRADE METAMORPHIC ROCKS
CRESPI, Jean, ROBINSON, Jessica and ROSEN, Madison, Department of Geosciences, University of Connecticut, Storrs, CT 06269
 
9:40 AM
Break
3-6
9:55 AM
EVIDENCE FOR SALINIC AND ACADIAN REACTIVATION OF TACONIC THRUSTS ALONG THE WESTERN GREEN MOUNTAIN FRONT
WEBB, Laura E., Geology, University of Vermont, 180 Colchester Ave., Burlington, VT 05405, KARABINOS, Paul, Dept. Geosciences, Williams College, Williamstown, MA 01267 and KLEPEIS, Keith A., Department of Geology, University of Vermont, Trinity Campus, Delehanty Hall, 180 Colchester Ave, Burlington, VT 05405
3-7
10:15 AM
A KINEMATIC MODEL FOR IAPETUS OCEAN CLOSURE
WALDRON, John W.F., Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G2E3, Canada, MCCAUSLAND, Phil J.A., Department of Earth Sciences, University of Western Ontario, London, ON N6A 5B7, Canada, SCHOFIELD, David I., British Geological Survey, The Lyell Centre, Research Avenue South, Edinburgh, EH14 4AP, United Kingdom and BARR, Sandra M., Department of Earth and Environmental Science, Acadia University, Wolfville, NS B4P2R6, Canada
3-8
10:35 AM
TERRANE ACCRETION AND TRANSPRESSION IN THE CENTRAL APPALACHIAN PIEDMONT: AN EXAMPLE FROM THE ENIGMATIC GOOCHLAND TERRANE
BAILEY, Christopher M.1, DUKE, Hope J.1, FOSTER-BARIL, Zachary2 and STOCKLI, Daniel F.3, (1)Department of Geology, William & Mary, Williamsburg, VA 23187, (2)University of Texas at Austin, 2501 Speedway, Austin, TX 78712, (3)Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712
3-9
10:55 AM
THERMOISOTOPIC AND PETROCHRONOLOGIC CONSTRAINTS ON CRUSTAL EVOLUTION OF THE ACADIAN OROGENY
HILLENBRAND, Ian W., WILLIAMS, Michael L., TJAPKES, Daniel J. and JERCINOVIC, Michael J., Department of Geosciences, University of Massachusetts, Amherst, 627 N Pleasant St, Amherst, MA 01003-9354
11:35 AM
CONTRASTING TECTONO-THERMAL HISTORIES ACROSS THE ROSEMONT SHEAR ZONE IN THE CENTRAL APPALACHIAN PIEDMONT OF SE PENNSYLVANIA AND NORTHERN DELAWARE
BOSBYSHELL, Howell and MELNICK, Daniel J., Department of Earth & Space Sciences, West Chester University, 720 S Church St, West Chester, PA 19383
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