GSA 2020 Connects Online

Session No. 198
Thursday, 29 October 2020: 1:30 PM-5:30 PM

T2. Assembling Laurentia: Paleozoic Mobile Margins I

GSA Structural Geology and Tectonics Division; Mineralogical Society of America; GSA Geophysics and Geodynamics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Sedimentary Geology Division

 

Luke P. Beranek and Cees R. van Staal, Advocates
Paper #
Start Time
1:30 PM
BREAKING UP IS HARD TO DO: A SUMMARY OF FIELD RELATIONS AND GEOCHRONOLOGY OF LATE TONIAN TO CRYOGENIAN INTRACONTINENTAL RIFTING OF RODINIA IN THE SOUTHERN APPALACHIAN BLUE RIDGE
MERSCHAT, Arthur1, HOLM-DENOMA, Christopher S.2, MCALEER, Ryan J.1, SOUTHWORTH, Scott3, MACLENNAN, Scott A.4 and EDDY, Michael P.5, (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 Emeritus, 1500 Hampton Hill Circle, Mclean, VA 22101, (4)Department of Earth and Environmental Sciences, University of Rochester, Rochester, NY 14627, (5)Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907
1:45 PM
CONSTRAINTS FROM THE AREQUIPA TERRANE ON THE NEOPROTEROZOIC-CAMBRIAN RIFT HISTORY OF LAURENTIA
HODGIN, Eben B., Earth and Planetary Sciences, University of California Berkeley, Berkeley, CA 94720; Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, MACDONALD, Francis A., Earth Science, University of California, Santa Barbara, CA 93106-9630, CROWLEY, James L., Department of Geosciences, Boise State University, Boise, ID 83725, BUATOIS, Luis A., Department of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, SK S7N 5E2, Canada, CARLOTTO, Victor, Universidad Nacional de San Antonio Abad del Cusco, Avenida de la Cultura, 733, Cusco, 921, Peru and HANSON, Richard E., Department of Geology, Texas Christian University, Fort Worth, TX 76129
2:00 PM
PANNOTIA: EVIDENCE FOR ITS EXISTENCE AND THERMAL LEGACY (Invited Presentation)
MURPHY, J. Brendan1, NANCE, R. Damian2, CAWOOD, Peter A.3, COLLINS, William J.4, DAN, Wei5, DOUCET, Luc S.6, HERON, Philip J.7, LI, Zheng-Xiang6, MITCHELL, Ross8, PISAREVSKY, Sergei6, PUFAHL, Peir K.9, QUESADA, Cecilio10, SPENCER, Christopher J.11, STRACHAN, Rob A.12 and WU, Lei13, (1)Department of Earth Sciences, St. Francis Xavier University, Box 1623, Nova Scotia, Antigonish, NS B2G 2W5, Canada, (2)Department of Geological Sciences, Ohio University, Athens, OH 45701, (3)Department of Earth Atmosphere and Environment, Monash University, Australia, Clayton, VIC 3000, Australia, (4)Earth Dynamics Research Group,, The Institute for Geoscience Research (TIGeR),, School of Earth and Planetary Sciences,, Perth, WA WA 6845, Australia, (5)State Key Laboratory of Isotope Geochemistry (SKLaBIG), Guangzhou Institute of Geochemistry (GIG), Chinese Academy of Sciences (CAS), Kehua Road, Tianhe District, Guangzhou, 510640, China, (6)Earth Dynamics Research Group, The Institute for Geoscience Research (TIGeR), School of Earth and Planetary Sciences, Perth, WA WA 6845, Australia, (7)Department of Earth Sciences, Durham University, Durham, DH1 3LE, United Kingdom, (8)State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China, (9)Geological Sciences and Geological Engineering, Queen's University, 36 Union St, Miller Hall, Kingston, ON K7L3N6, Canada, (10)Instituto Geológico y Minero de España, and Facultad de Geológicas; Universidad Complutense de Madrid, 23 Rios Rosas, Madrid, 28003, Spain, (11)Department. of Geological Sciences & Geological Engineering, Queen's University, 36 Union St, Miller Hall, Kingston, ON K7L 3N6, Canada, (12)School of Earth and Environmental Sciences, University of Portsmouth, Burnaby Building, Burnaby Road, Portsmouth, PO1 3QL, United Kingdom, (13)Department of Earth and Planetary Sciences, McGill University, 3450 Rue University, Montréal, QC H3A 0E8, Canada
2:15 PM
THE EARLY DEVONIAN INITIATION OF PANGEA AMALGAMATION: NEW INSIGHTS FROM PALEOMAGNETIC AND GEOLOGICAL DATA (Invited Presentation)
WU, Lei, Department of Earth and Planetary Sciences, McGill University, 3450 Rue University, Montréal, QC H3A 0E8, Canada, MURPHY, J. Brendan, Department of Earth Sciences, St. Francis Xavier University, Box 1623, Nova Scotia, Antigonish, NS B2G 2W5, Canada, QUESADA, Cecilio, Instituto Geológico y Minero de España, and Facultad de Geológicas; Universidad Complutense de Madrid, 23 Rios Rosas, Madrid, 28003, Spain, LI, Zheng-Xiang, Department of Applied Geology, Curtin University of Techology, Department of Applied Geology, Curtin University of Techology, Perth, WA 6845, Australia, WALDRON, John W.F., Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G2E3, Canada, WILLIAMS, Simon E., School of Geosciences, The University of Sydney, Sydney, 2006, Australia, PISAREVSKY, Sergei, Earth Dynamics Research Group, School of Earth and Planetary Sciences, Curtin University, Bentley, Perth, WA GPO Box U1987, Australia and COLLINS, William J., 3Department of Geological Sciences, Stanford University, 450 Serra Mall, Stanford, WA 94305, Australia
2:30 PM
FORELAND BASIN RESPONSE AS A CONSTRAINT ON LAURENTIAN PALEOZOIC OROGENIES: INSIGHTS FROM SUBSIDENCE ANALYSIS AND FLEXURAL MODELING
CURRY, Magdalena Ellis, Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77004, RUDOLPH, Kurt, Earth, Environmental and Planetary Sciences Department, Rice University, Houston, TX 77005 and ERRATT, Duncan, University of Strasbourg, Strasbourg, 67081, France
2:45 PM
UNCOVERING THE DEEP ULTRAMAFIC ROOTS OF THE ACADIAN OROGEN: IMPLICATIONS FOR THE GENESIS OF THE COEVAL EVOLVED MAGMATISM
TASSARA, Santiago1, AGUE, Jay J.1 and VALENCIA, Victor2, (1)Department of Earth and Planetary Sciences, Yale University, PO BOX 208109, New Haven, CT 06520-8109, (2)School of Earth and Enviromental Sciences, Washington State University, Pullman, WA 99164-2812
 
3:00 PM
Appalachian discussion
3:10 PM
NEW EVIDENCE FOR SUBSTANTIAL SHEAR IN EASTERN KANSAS; PROVIDING RELATIVE AGE CONSTRAINT FOR THE ONSET OF THE OUACHITA OROGENY
OBORNY, Stephan, Kansas Geological Survey, Stratigraphic and Energy Research Sections, 1930 Constant Avenue, Lawrence, KS 66047 and HASIUK, Franciszek, Energy Research Section, Kansas Geological Survey, 1930 Constant Avenue, Lawrence, KS 66047
3:25 PM
LATE PALEOZOIC TECTONIC REGIMES RECORDED IN TUFF ZIRCON GEOCHEMISTRY IN SOUTHWESTERN LAURENTIA
TIAN, Hepeng1, FAN, Majie1 and VALENCIA, Victor2, (1)Department of Earth and Environmental Science, University of Texas at Arlington, 500 Yates Street, Arlington, TX 76019, (2)School of Earth and Enviromental Sciences, Washington State University, Pullman, WA 99164-2812
3:40 PM
A LATE PALEOZOIC RECORD OF THE OUACHITA OROGENY IN WESTERN ARKANSAS
HUDSON, Mark R., USGS, Box 25046, Denver Federal Center, Denver, CO 80225, DECHESNE, Marieke, U.S. Geological Survey, Geosciences and Environmental Change Science Center, P.O. Box 25046, DFC, MS 980, Denver, CO 80225, JOHNSTONE, Samuel, United States Geological Survey, Geoscience and Environmental Change Science Center, P.O. Box 25046, DFC, MS 980, Denver, CO 80225, TURNER, Kenzie J., U.S. Geological Survey, Denver, CO 80225, MCCAFFERTY, Anne E., U.S. Geological Survey, P.O. Box 25046, MS964, Denver Federal Center, Denver, CO 80225 and SHARMAN, Glenn, Department of Geosciences, University of Arkansas, Fayetteville, AR 72701
3:55 PM
LATE PALEOZOIC BASIN EVOLUTION OF THE ANADARKO BASIN: IMPLICATIONS FOR LAURENTIAN TECTONICS AND THE ASSEMBLY OF PANGEA
HOBBS, Noah, EES, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801, AXEN, Gary, Department of Earth & Environmental Science, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801, VAN WIJK, Jolante, Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801 and LEARY, Ryan J., Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology, 801 Leroy Pl., Socorro, NM 87801
4:10 PM
STRATIGRAPHIC PATTERNS IN AN ACTIVE FORELAND BASIN, DESMOINESIAN STRATA OF THE ARKOMA BASIN, ARKANSAS
DECHESNE, Marieke, U.S. Geological Survey, Geosciences and Environmental Change Science Center, P.O. Box 25046, DFC, MS 980, Denver, CO 80225, HIRTZ, Jaime A., Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712, HUDSON, Mark R., USGS, Box 25046, Denver Federal Center, Denver, CO 80225, SHARMAN, Glenn, Department of Geosciences, University of Arkansas, Fayetteville, AR 72701 and JOHNSTONE, Samuel, United States Geological Survey, Denver Federal Center, MS 963, Denver, CO 80225
 
4:25 PM
Ouachita discussion
4:35 PM
TAPPING TEXAS INTO PLACE: A PARAUTOCHTHONOUS INDENTER MECHANISM FOR THE ANCESTRAL ROCKY MOUNTAINS OROGEN (Invited Presentation)
LAWTON, Timothy F., Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78758, THOMAS, William A., Emeritus University of Kentucky, Geological Survey of Alabama, P.O. Box 869999, Tuscaloosa, AL 35486-6999 and BLAKEY, Ronald C., Colorado Plateau Geosystems/Deep Time Maps, 12222 N Paradise Village Parkway, unit 110, Phoenix, AZ 85032
4:50 PM
EARLY CORDILLERAN ARC MAGMATISM RECORDED BY DETRITAL ZIRCON GRAINS IN LOWER TO MIDDLE TRIASSIC STRATA OF SOUTHWESTERN NORTH AMERICA
KWIATKOWSKI, Chad J.1, RIGGS, Nancy R.1 and REYNOLDS, Stephen J.2, (1)School of Earth and Sustainability, Northern Arizona University, Flagstaff, AZ 86001, (2)School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287
5:05 PM
STRATIGRAPHIC RECORD AND GEOLOGIC CONFIGURATION OF THE LATE PALEOZOIC-MESOZOIC NORTHWESTERN LAURENTIAN MARGIN: A RE-EVALUATION OF UPPER PALEOZOIC-CRETACEOUS STRATA, DENALI NATIONAL PARK AND PRESERVE, CENTRAL ALASKA RANGE
KEOUGH, Brandon M. and RIDGWAY, Kenneth D., Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907
 
5:20 PM
Cordilleran discussion
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