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GSA 2020 Connects Online

Session No. 71
Tuesday, 27 October 2020: 1:30 PM-5:30 PM

T13. Some like It HOT: The Role of Late Extensional Tectonics in Collisional Orogens, with Special Emphasis on the Grenville Orogen

GSA Structural Geology and Tectonics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Geophysics and Geodynamics Division; GSA Sedimentary Geology Division

 

Erkan Toraman, Michelle Markley and Toby Rivers, Advocates
Paper #
Start Time
 
1:30 PM
Introductory Remarks
71-1
1:35 PM
THICKENING, COLLAPSE, AND THE U-SHAPED MONAZITE PROFILE: IMPLICATIONS FOR THE TECTONIC HISTORY OF THE ADIRONDACK AND APPALACHIAN MOUNTAINS (Invited Presentation)
WILLIAMS, Michael L.1, JERCINOVIC, Michael J.2, HILLENBRAND, Ian W.2 and TJAPKES, Daniel1, (1)Department of Geosciences, University of Massachusetts, Amherst, MA 01003-9297, (2)Department of Geosciences, University of Massachusetts, Amherst, 627 N Pleasant St, Amherst, MA 01003-9354
71-2
1:50 PM
IN-SITU MONAZITE GEOCHRONOLOGY OF THE CARTHAGE-COLTON SHEAR ZONE: NEW CONSTRAINTS ON MAGMATISM, METAMORPHISM, AND DEFORMATION ALONG A MAJOR TECTONIC BOUNDARY IN THE ADIRONDACKS
TORAMAN, Erkan, Geological Sciences, Salem State University, 352 Lafayette Street, Salem, MA 01970, CHIARENZELLI, Jeffrey R., Department of Geology, St. Lawrence University, Brown Hall 23 Romoda Drive, Canton, NY 13617, WILLIAMS, Michael L., Department of Geosciences, University of Massachusetts, Amherst, 627 North Pleasant St, Amherst, MA 01003-9297 and JERCINOVIC, M.J., Department of Geosciences, University of Massachusetts, Amherst, 611 North Pleasant Street, Amherst, MA 01003
71-3
2:05 PM
DEFORMATION OF THE SOUTHERN CARTHAGE-COLTON MYLONITE ZONE AND ITS POTENTIAL ROLES IN COMPRESSIONAL AND EXTENSIONAL TECTONICS IN THE ADIRONDACK SEGMENT OF THE GRENVILLE PROVINCE, NORTHERN NEW YORK STATE
BAIRD, Graham B., Earth & Atmospheric Sciences, University of Northern Colorado, Campus Box 100, Greeley, CO 80639
71-4
2:20 PM
GORE MOUNTAIN GARNET AMPHIBOLITE RECORDS UHT CONDITIONS: IMPLICATIONS FOR THE RHEOLOGY OF THE LOWER CONTINENTAL CRUST DURING OROGENESIS
SHINEVAR, William J., MIT/WHOI Joint Program, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139-4307, JAGOUTZ, Oliver, Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Avenue, 54-1212, Cambridge, MA 02139 and VANTONGEREN, Jill, Department of Earth and Ocean Sciences, Tufts University, 419 Boston Ave, Medford, MA 02155
 
2:35 PM
Discussion
71-5
2:45 PM
SLOW COOLING OF HOT ROCKS IN LARGE GRENVILLIAN METAMORPHIC CORE COMPLEXES, AND THE THERMAL SIGNATURE OF THE OTTAWAN OROGENIC LID
RIVERS, Toby, Earth Sciences, Memorial University, 230 Elizabeth Avenue, St, John's, NF A1B 3X5, Canada and VOLKERT, Richard A., NJ Geological and Water Survey (Retired), Trenton, NJ 08625
71-6
3:00 PM
THE ROLE OF TRANSVERSE BASEMENT STRUCTURES AND OBLIQUE TERRANE BOUNDARIES ON THE ARCHITECTURE OF LARGE-HOT LONG OROGENS - EXAMPLES FROM THE HIMALAYA-TIBET AND GRENVILLE OROGENS (Invited Presentation)
SOUCY LA ROCHE, Renaud1, GODIN, Laurent2, HARRIS, Lyal1 and GICQUEL, Aurélie1, (1)Centre Eau Terre Environnement, Institut national de la recherche scientifique, 490 rue de la Couronne, Québec, QC G1K 9A9, Canada, (2)Geological Sciences & Geological Engineering, Queen's University, Bruce Wing/Miller Hall, 36 Union Street, Kingston, ON K7L3N6, Canada
71-7
3:15 PM
THE ROLE OF EXTENSION IN DEVELOPMENT OF OROGENIC GEOTHERMS: HOT OROGENS MAY NOT BE SO HOT (Invited Presentation)
WHITNEY, Donna L., Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN 55455 and TEYSSIER, Christian, Department of Earth & Environmental Sciences, University of Minnesota, Minneapolis, MN 55455
71-8
3:30 PM
DETERMINING THE PETROTECTONIC EVOLUTION OF LEDGE MOUNTAIN MIGMATITES WITH PHASE EQUILIBRIA MODELING AND MELT REINTEGRATION: ADIRONDACK HIGHLANDS, NEW YORK
DAVIS, Michael, Earth and Climate Sciences, San Francisco State University, 1600 Holloway Ave, San Francisco, CA 94132, LEECH, Mary, Earth and Climate Sciences, San Francisco State University, 1600 Holloway Avenue, San Francisco, 94132 and METZGER, Ellen, Department of Geology, San Jose State University, One Washington Square, San Jose, CA 95192-0102
 
3:45 PM
Discussion 2
71-9
3:55 PM
PRELIMINARY MAPPING RESULTS FROM THE PORT HENRY QUADRANGLE, ADIRONDACK MOUNTAINS, NEW YORK
VALLEY, Peter M., US Geological Survey, Florence Bascome Geoscience Center, 12201 Sunrise Valley Dr., MS926A, Reston, VA 20192
71-10
4:10 PM
ND ISOTOPE MAPPING A TECTONIC WINDOW IN THE CHALK RIVER AREA: IMPLICATIONS FOR GRENVILLIAN TECTONICS
DICKIN, A.P.1, KRIVANKOVA-SMAL, L.1, STRONG, J.W.D.2 and SWING, M.3, (1)School of Geography & Earth Sciences, McMaster University, Hamilton, ON L8S 4M1, Canada, (2)School of Earth, Atmosphere & Environment, Monash University, Clayton, VIC 3800, Australia, (3)Department of Earth Sciences, University of Toronto, Toronto, ON ON M5S, Canada
71-11
4:25 PM
THERMAL EVOLUTION OF THE SCANDIAN OROGENIC RETROWEDGE, NORTHERN SCOTLAND: TECTONIC IMPLICATIONS OF RAPID COLLAPSE
SPENCER, Brandon M., Department of Earth and Environmental Sciences, University of Kentucky, 108C Slone Research Building, 121 Washington Ave., Lexington, KY 40506, THIGPEN, J. Ryan, Earth and Environmental Sciences, University of Kentucky, 121 Washington Ave., Lexington, KY 40506, LAW, Richard D., Department of Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061, HODGES, K.V., School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, GALLEN, Sean F., Department of Geosciences, Colorado State University, Fort Collins, CO 80521, DORTCH, Jason M., Kentucky Geological Survey, University of Kentucky, Lexington, KY 40506-0107 and MAKO, Calvin A., Geology Department, Bates College, 44 Campus Ave, Carnegie Science Hall, Lewiston, ME 04240
 
4:40 PM
Discussion 3
71-12
4:45 PM
RETROGRESSED BANDED GNEISSES AS INDICATORS OF INVERTED DUCTILE THRUSTS, WESTERN OTTAWA RIVER GNEISS COMPLEX, GRENVILLE PROVINCE OF ONTARIO
CARTER, Joy1, KWONG, Darrel1, PANASIUK, Sofia1, RIVERS, Toby2 and SCHWERDTNER, W.M.1, (1)Department of Earth Sciences, University of Toronto, Toronto, ON M5S 3B1, Canada, (2)Earth Sciences, Memorial University, 230 Elizabeth Avenue, St, John's, NF A1B 3X5, Canada
71-13
4:55 PM
MAJOR LENTICULAR STRUCTURES IN THE OTTAWA RIVER GNEISS COMPLEX, SW GRENVILLE PROVINCE: MEGABOUDINS FORMED DURING 2-STAGE DUCTILE OROGENIC COLLAPSE
SCHWERDTNER, W.M.1, RIVERS, Toby2 and CARTER, Joy1, (1)Department of Earth Sciences, University of Toronto, Toronto, ON M5S 3B1, Canada, (2)Earth Sciences, Memorial University, 230 Elizabeth Avenue, St, John's, NF A1B 3X5, Canada
71-14
5:05 PM
MAGNETITE-APATITE MINERALIZATION IN A GRENVILLE INLIER: TEMPORAL CONSTRAINTS ON REGIONAL METAMORPHISM AND METASOMATISM
MCKANNA, Alyssa J.1, SCHOENE, Blair1, VOLKERT, Richard A.2 and LEWIS, Lauren1, (1)Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544, (2)NJ Geological and Water Survey (Retired), Trenton, NJ 08625
71-15
5:15 PM
A TRANSECT ACROSS THE NORTHERN MARGIN OF THE MARCY MASSIF, COPPER KILN LANDSLIDE, ADIRONDACK MOUNTAINS, NEW YORK, USA
PRICE, Nancy A. and PIDGEON, Jarret William, Center for Earth and Environmental Science, State University of New York at Plattsburgh, 101 Broad Street, Plattsburgh, NY 12901
 
5:25 PM
Concluding Remarks
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