Session: Modern Techniques, Models, and Interpretations of Ancient Orogens: 125 Years of Progress in Understanding the Grenville and Appalachian Orogens of Eastern North America (2013 GSA Annual Meeting in Denver: 125th Anniversary of GSA (27-30 October 2013))

Introductory Remarks
Abstract ID#: 234622

125 YEARS OF ATTEMPTING TO UNDERSTAND THE ORIGIN AND TECTONIC SIGNIFICANCE OF LATE ALKALIC SUITE INTRUSIONS PRESENT ALONG THE LAURENTIAN MARGIN-COMPOSITE ARC BELT BOUNDARY ZONE IN THE GRENVILLE OROGEN, ONTARIO: A STATUS REPORT
Abstract ID#: 228067

EASTON, R.M., Ontario Geological Survey, Earth Resources and Geoscience Mapping Section, B7064, 933 Ramsey Lake Road, Sudbury, ON P3E 6B5 Canada, mike.easton@ontario.ca

CONSTRAINING THE DEPOSITIONAL HISTORY AND EVOLUTION OF THE TRANS-ADIRONDACK BACK-ARC BASIN USING DETRITAL ZIRCON GEOCHRONOLOGY
Abstract ID#: 230712

CHIARENZELLI, Jeffrey R.¹, KRATZMANN, David J.¹, SELLECK, Bruce², CHRISTOFFERSEN, Peter¹, and DURHAM, Ashley¹, (1) Department of Geology, St. Lawrence University, Canton, NY 13617, jchiaren@stlawu.edu, (2) Department of Geology, Colgate University, 13 Oak Drive, Hamilton, NY 13346

ANATECTIC ALUMINOUS GNEISSES FROM THE MID-P SEGMENT OF THE CENTRAL GRENVILLE PROVINCE: PETROGRAPHY, P-T EVOLUTION AND U-PB MONAZITE AGES
Abstract ID#: 228830

LASALLE, Stephanie¹, INDARES, Aphrodite¹, FISHER, Christopher², and DUNNING, Greg¹, (1) Department of Earth Sciences, Memorial University of Newfoundland (MUN), St. John's, NF A1B 3X5, Canada, s.lasalle@mun.ca, (2) School of the Environment, Washington State University, Pullman, WA 99164

CRYSTALLIZATION MODELING AND TI-IN-ZIRCON THERMOMETRY SUPPORT THE “HOT” GRENVILLE GRANITE HYPOTHESIS
Abstract ID#: 228774

MOECHER, D.P., Earth & Env. Sci, University of Kentucky, Lexington, KY 40506-0053, moker@uky.edu, MCDOWELL, Susanne M., Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, SAMSON, S.D., Department of Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244, and MILLER, C.F., Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235

CONTRASTING LU-HF AND SM-ND AGES IN GARNETIFEROUS GNEISSES OF THE BLUE RIDGE PROVINCE, VIRGINIA: IMPLICATIONS FOR THE TIMING AND DURATION OF THE GRENVILLIAN OROGENY IN THE CENTRAL APPALACHIANS
Abstract ID#: 224454

VERVOORT, Jeffery D., School of the Environment, Washington State University, Pullman, WA 99164, vervoort@wsu.edu, RAMSEY, Molly J., Washington State University, PO Box 642812, Pullman, WA 99164, ALEINIKOFF, John N., U.S. Geological Survey, MS 963, Denver, CO 80225, and SOUTHWORTH, Scott, U.S. Geological Survey, MS 926A National Center, Reston, VA 20192-0001

STRATIGRAPHY AND STRUCTURAL GEOMETRY OF THE NEOPROTEROZOIC ROCKFISH CONGLOMERATE, CENTRAL VIRGINIA BLUE RIDGE
Abstract ID#: 233875

FOSTER-BARIL, Zachary and BAILEY, Christopher, Geology, College of William and Mary, P.O. Box 8795, Williamsburg, VA 23187-8795, zsfosterbaril@email.wm.edu

Break
Abstract ID#: 234621

AGE OF THE WALDEN CREEK GROUP, WESTERN BLUE RIDGE PROVINCE: RESOLVING A DECADES-OLD CONTROVERSY VIA DETRITAL MINERAL GEOCHRONOLOGY AND SEDIMENTARY PROVENANCE ANALYSIS
Abstract ID#: 225092

KELLY, Evan A., Earth and Environmental Sciences, University of Kentucky, Lexington, KY 40508, evan.a.kelly@uky.edu and MOECHER, David P., Earth and Environmental Sciences, University of Kentucky, 101 Slone Bldg, 121 Washington St, Lexington, KY 40506

IAPETUS CLOSURE – VIEW FROM BALTICA
Abstract ID#: 230857

MAJKA, Jaroslaw¹, GEE, David G.², JANAK, Marian³, and KLONOWSKA, Iwona¹, (1) Department of Earth Sciences, Uppsala University, Villavägen 16, Uppsala, SE-75236, Sweden, jaroslaw.majka@geo.uu.se, (2) Department of Earth Sciences, Uppsala University, Uppsala, 752 36, Sweden, (3) Geological Institute, Slovak Academy of Sciences, Bratislava, 84005, Slovak Republic

LATE ORDOVICIAN ACCRETION OF THE CHOPAWAMSIC ARC IN THE WESTERN PIEDMONT OF VIRGINIA: U-PB ZIRCON GEOCHRONOLOGY OF META-IGNEOUS AND META-SEDIMENTARY ROCKS ACROSS THE CHOPAWAMSIC FAULT
Abstract ID#: 224225

HUGHES, K. Stephen¹, HIBBARD, James¹, MILLER, Brent V.², and POLLOCK, Jeff³, (1) Marine, Earth, and Atmospheric Sciences, North Carolina State University, 2800 Faucette Drive, Rm. 1125 Jordan Hall, Raleigh, NC 27695, kshughes@ncsu.edu, (2) Dept. of Geology & Geophysics, Texas A&M University, College Station, TX 77843-3115, (3) Department of Earth Sciences, Mount Royal University, Calgary, AB T3E 6K6, Canada

TERRANE ACCRETION AND FORELAND BASIN FORMATION IN THE NORTHERN APPALACHIANS
Abstract ID#: 228436

MACDONALD, Francis A., Department of Earth and Planetary Sciences, Harvard University, 20 Oxford St, Cambridge, MA 02138, fmacdon@fas.harvard.edu, CROWLEY, James L., Department of Geosciences, Boise State University, Boise, ID 83725, and KARABINOS, Paul M., Department of Geosciences - Clark Hall, Williams College, 947 Main Street, Williamstown, MA 01267

MORE STRUCTURES BEARING ON AN INITIAL ACADIAN EXTENSIONAL ORIGIN FOR THE DOMINANT STRUCTURES IN THE WESTERN APPALACHIAN FORELAND BASIN OF PENNSYLVANIA, AND NYS ANALOGS
Abstract ID#: 226913

JACOBI, Robert D., EQT, 625 Liberty Avenue, Suite 1700, Pittsburgh, PA 15222, rdjacobi@buffalo.edu and STARR, Joel, EQT Production, 625 Liberty Ave Suite 1700, Pittsburgh, PA 15222

PIEDMONT SUPERTHRUST AND SCHUYLKILL TECTONIC ZONE: KEYS TO ENIGMATIC JUNCTION OF NORTHERN AND SOUTHERN APPALACHIANS IN PA AND MD
Abstract ID#: 232481

WISE, Donald, Department of Geosciences, University of Massachusetts, Ahmerst, MA 01003, dwise@geo.umass.edu

VORTICITY FROM KINEMATIC INDICATORS AND EXPOSITION OF REGIONAL SHEAR IN HIGH STRAIN ZONES OF THE CENTRAL AND SOUTHERN APPALACHIAN MOUNTAINS
Abstract ID#: 233418

BOBYARCHICK, Andy R., Department of Geography & Earth Sciences, University of North Carolina at Charlotte, 9201 University City Boulevard, Charlotte, NC 28223, arbobyar@uncc.edu

POLYPHASE MOVEMENT ON THE ROSMAN FAULT, BREVARD ZONE, SOUTH CAROLINA
Abstract ID#: 227495

CLENDENIN, C.W. Jr, SCDNR-Earth Science Group, 5 Geology Road, Columbia, SC 29212, clendeninb@dnr.sc.gov and GARIHAN, John M., Earth & Environmental Sciences, Furman University, 3300 Poinsett Highway, Greenville, SC 29613

181. T181. Modern Techniques, Models, and Interpretations of Ancient Orogens: 125 Years of Progress in Understanding the Grenville and Appalachian Orogens of Eastern North America

181.
T181. Modern Techniques, Models, and Interpretations of Ancient Orogens: 125 Years of Progress in Understanding the Grenville and Appalachian Orogens of Eastern North America