GSA 2020 Connects Online

Session No. 133
Wednesday, 28 October 2020: 1:30 PM-5:30 PM

T8. From Rodinia to Pangea: Evolution of the Appalachian-Caledonian Orogen I

GSA Structural Geology and Tectonics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Geochronology Division: GSA International

 

Chong Ma, Paul A. Mueller, Paul Karabinos, David A. Foster and Cees R. van Staal, Advocates
Paper #
Start Time
 
1:30 PM
Introductory Remarks
1:45 PM
HALF A CENTURY OF MODERN APPALACHIAN TECTONICS—ARE WE HALFWAY THERE YET? (Invited Presentation)
HATCHER Jr., Robert D., Earth and Planetary Sciences, University of Tennessee, Knoxville, TN 37996
2:00 PM
CHARACTERISTIC DETRITAL ZIRCON POPULATIONS OF THE EASTERN LAURENTIAN MARGIN IN THE APPALACHIANS
KUIPER, Yvette D., Department of Geology and Geological Engineering, Colorado School of Mines, 1516 Illinois Street, Golden, CO 80401 and HEPBURN, J. Christopher, Department of Earth and Environmental Sciences, Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA 02467
2:15 PM
NEW 40Ar/39Ar MUSCOVITE CONSTRAINTS ON THE CALEDONIAN GRAMPIAN TERRANE AND THE OLD RED SANDSTONE IN SCOTLAND
DELUCA, Michael J., HEMMING, Sidney and CHRISTIE-BLICK, Nicholas, Department of Earth and Environmental Sciences, and Lamont-Doherty Earth Observatory of Columbia University, Palisades, NY 10964
2:30 PM
TOWARDS A KINEMATIC MODEL FOR IAPETUS OCEAN CLOSURE (Invited Presentation)
WALDRON, John W.F., Department of Earth and Atmospheric Sciences, University of Alberta, Edmonton, AB T6G2E3, Canada, SCHOFIELD, D.I., British Geological Survey, Kingsley Dunham Centre, Keyworth, Nottingham, NG12 5GG, United Kingdom, MCCAUSLAND, Phil J.A., Western Paleomagnetic & Petrophysical Laboratory,, Western University, 1151 Richmond St, London, ON N6A 3K7, Canada, BARR, Sandra M., Earth and Environmental Science, Acadia University, Wolfville, NS B4P2R6, Canada, WU, Lei, Department of Earth and Planetary Sciences, McGill University, 3450 Rue University, Montréal, QC H3A 0E8, Canada and REUSCH, Douglas N., Natural Sciences, Univ of Maine at Farmington, 173 High Street, Farmington, ME 04938
2:45 PM
GEOCHEMISTRY OF THE BAY OF ISLANDS METAMORPHIC SOLE: GEODYNAMIC AFFINITY AND IMPLICATIONS FOR THE SUBDUCTION INITIATION
FOURNIER-ROY, François1, GUILMETTE, Carl1, SORET, Mathieu2, LARSON, Kyle P.3 and BÉDARD, Jean H.4, (1)Département de Géologie et de Génie Géologique, Université Laval, Québec, QC G1V 0A6, Canada, (2)Institut des sciences de la Terre d’Orleans (ISTO), Université d’Orléans, Orléans, 45100, France, (3)Earth, Environmental and Geographic Sciences, University of British Columbia Okanagan, Kelowna, BC V1V 1V7, Canada, (4)Geological Survey of Canada, 490 rue de la Couronne, Quebec, QC G1K 9A9, Canada
 
3:00 PM
Discussion
3:15 PM
THE NEWLY DISCOVERED, GIANT FISH RIVER POST-ACADIAN RIFT SYSTEM IN THE NORTHERN APPALACHIANS OF MAINE
WANG, Chunzeng1, MARVINNEY, Robert G.2, PUTNAM, David1, BAGLEY, Eric1 and BELAIR, Scott3, (1)College of Arts and Sciences, University of Maine at Presque Isle, 181 Main Street, Presque Isle, ME 04769, (2)Maine Geological Survey, 93 State House Station, Augusta, ME 04333, (3)Northern Maine Regional Office, Maine Department of Environmental Protection, 1235 Central Drive, Presque Isle, ME 04769
3:30 PM
IAPETUS SHRUGGED: THE EARLY RIFTING RECORD OF LAURENTIA IN THE NEW ENGLAND AND QUÉBEC APPALACHIANS
KARABINOS, Paul, Department of Geosciences, Williams College, 947 Main St., Williamstown, MA 01267, CROWLEY, J.L., Department of Geosciences, Boise State University, Boise, ID 208-426-2220, JARET, Steven J., Earth and Planetary Sciences, American Museum of Natural History, 200 Central Park West, New York, NY 10024, HODGIN, Eben B., Department of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106 and MACDONALD, Francis A., Department of Earth Science, University of California Santa Barbara, Santa Barbara, CA 93109
3:45 PM
THE BALTIMORE MAFIC COMPLEX, MARYLAND: OPHIOLITE FRAGMENTS IN THE SOUTHERN APPALACHIAN OROGEN?
GUICE, George L.1, ACKERSON, Michael R.1, HOLDER, Robert M.2, GEORGE, Freya R.3, BROWNING-HANSON, Joseph4, BURGESS, Jerry L.4, FOUSTOUKOS, Dionysis I.5, BECKER, Naomi A.4, NELSON, Wendy R.6 and VIETE, Daniel R.3, (1)Department of Mineral Sciences, Smithsonian National Museum of Natural History, Smithsonian Institution, MRC 0119, PO BOX 37012, Washington, DC 20013-7012, (2)Earth and Planetary Sciences, Johns Hopkins University, 301 Olin Hall, 3400 N Charles St, Baltimore, MD 21211; Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48109, (3)Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD 21211, (4)Earth and Planetary Sciences, Johns Hopkins University, 301 Olin Hall, 3400 N Charles St, Baltimore, MD 21211, (5)Carnegie Institute of Science Washington, Geophysical Laboratory, 5251 Broad Branch Rd. NW, Washington, DC 20015, (6)Physics, Astronomy and Geosciences, Towson University, 8000 York Road, Towson, MD 21252
4:00 PM
SINISTRAL TRANSPRESSION AND CONTRASTING TECTONO-THERMAL HISTORIES ACROSS THE ROSEMONT SHEAR ZONE IN THE CENTRAL APPALACHIAN PIEDMONT OF SE PENNSYLVANIA AND NORTHERN DELAWARE
BOSBYSHELL, Howell, Department of Earth & Space Sciences, West Chester University, 720 S Church St, West Chester, PA 19383
4:15 PM
SPATIALLY VARIABLE ALLEGHANIAN EXHUMATION OF THE CENTRAL APPALACHIAN MOUNTAINS FROM ZIRCON (U-TH)/HE THERMOCHRONOLOGY
BASLER, Luke C.1, BAUGHMAN, Jaclyn S.1, FAME, Michelle1 and HAPROFF, Peter J.2, (1)Earth and Oceanographic Science, Bowdoin College, Brunswick, ME 04011, (2)Earth and Ocean Sciences, University of North Carolina at Wilmington, Wilmington, NC 28403
 
4:30 PM
Discussion
4:45 PM
GEOCHEMICAL PROGRESSION IN LAVAS AND SHALLOW INTRUSIVES OF THE APPALACHIAN–CALEDONIAN LEKA OPHIOLITE COMPLEX, NORWAY
BECKER, Naomi A.1, BROWNING-HANSON, Joseph1, HOLDER, Robert M.2, NELSON, Wendy R.3, BURGESS, Jerry L.1 and VIETE, Daniel R.4, (1)Earth and Planetary Sciences, Johns Hopkins University, 301 Olin Hall, 3400 N Charles St, Baltimore, MD 21211, (2)Department of Earth & Planetary Sciences, Johns Hopkins University, Baltimore, MD 21218, (3)Towson University, Towson, MD 21252, (4)Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD 21211
4:55 PM
NEW AGES CONSTRAIN TIMING OF CALEDONIAN METAMORPHISM ACROSS VÄSTERBOTTEN, SEVE NAPPE COMPLEX, SWEDEN
WALSH, Emily O.1, MCRIVETTE, Michael W.2, CASAREZ, Morgan1, SHEW, Jillian1, HOINVILLE, Alex2, KYLANDER-CLARK, Andrew R.C.3, KLUG, Paige P.1 and MCDANIEL, Sydney1, (1)Geology Department, Cornell College, 600 First St. SW, Mt. Vernon, IA 52134, (2)Department of Geological Sciences, Albion College, 611 E Porter St, Albion, MI 49224, (3)Earth Science, University of California, Santa Barbara, CA 93106
 
5:05 PM
Concluding Remarks
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