Session: Longstanding Problems and New Ideas About the Structure and Tectonic Evolution of the Southern Appalachians and Other Mountain Belts I: In Honor of the Career of Robert D. Hatcher Jr. (Southeastern Section - 67th Annual Meeting

Session No. 2

Thursday, 12 April 2018: 8:00 AM-12:00 PM

Room 301 C (Knoxville Convention Center)

S1. Longstanding Problems and New Ideas About the Structure and Tectonic Evolution of the Southern Appalachians and Other Mountain Belts I: In Honor of the Career of Robert D. Hatcher Jr.

Arthur J. Merschat, J. Ryan Thigpen, Elizabeth McClellan and Mark W. Carter, Conveners

Paper #

Start Time

8:00 AM

Introductory Remarks

2-1

8:05 AM

EVOLUTION OF THE BLUE RIDGE BASEMENT COMPLEX IN THE EASTERN GREAT SMOKY MOUNTAINS: EVIDENCE FROM ZIRCON U-PB GEOCHRONOLOGY AND ND-PB ISOTOPE GEOCHEMISTRY OF BASEMENT GNEISSES

MOECHER, D.P., Earth & Env. Sci, University of Kentucky, Lexington, KY 40506-0053, SAMSON, S.D., Dept. Earth Sci, Syracuse Univ, 204 Heroy Geology Laboratory, Syracuse, NY 13244 and TOHVER, Eric, Instituto de Geosciências, Universidade de São Paolo, São Paolo, 05508-080, Brazil

2-2

8:25 AM

PRESSURE-TEMPERATURE (P-T) ESTIMATES FROM MINERALOGIC THERMOBAROMETRY IN AND NEAR THE WAYAH GRANULITE CORE, NC, INCLUDING NEW ZIRCONIUM-IN-RUTILE TEMPERATURES (ZRT): IMPLICATIONS FOR TECTONIC HISTORY, PRESERVATION OF PEAK T, AND POST-PEAK RE-EQUILIBRATION

ECKERT Jr., James O., Department of Geology and Geophysics, Yale University, P.O. Box 208109, New Haven, CT 06520-8109 and AGUE, Jay J., Department of Geology and Geophysics, Yale University, PO Box 208109, New Haven, CT 06520-8109

2-3

8:45 AM

USING EBSD AND MICROSTRUCTURAL ANALYSIS TO CONSTRAIN DEFORMATION CONDITIONS IN THE BLUE RIDGE

LEVINE, Jamie S.F.¹, CASALE, Gabriele², RAHL, Jeffrey M.³, CRAIG, Taylor D.⁴ and MARTIN, Claire P.², (1)Department of Geological and Environmental Sciences, Appalachian State University, Boone, NC 28608, (2)Department of Geological and Environmental Sciences, Appalachian State University, 572 Rivers Street, Boone, NC 28608, (3)Department of Geology, Washington and Lee University, Lexington, VA 24450, (4)Department of Geoscience, University of Nevada - Las Vegas, 4505 S. Maryland Parkway, Las Vegas, NV 89154-4010

2-4

9:05 AM

LONGSTANDING PROBLEMS REGARDING THE DISTRIBUTION AND CONDITIONS OF TACONIAN AND ALLEGHANIAN METAMORPHISM IN THE WESTERN BLUE RIDGE, WITH NEW PTT CONSTRAINTS FROM THE MURPHY SYNCLINORIUM

HAMES, Willis E., Geosciences, Auburn University, 2050 Beard Eaves Coliseum, Auburn, AL 36849

2-5

9:25 AM

NOT YOUR FATHER’S TACONIC OROGENY: SIGNIFICANCE OF AN IAPETUS-FACING, LAURENTIAN PLATE ORDOVICIAN ARC-BACKARC SYSTEM IN THE SOUTHERN APPALACHIANS

BARINEAU, Clinton I., Earth and Space Sciences, Columbus State University, 4225 University Avenue, Columbus, GA 31907-5645, TULL, James F., Earth, Ocean, and Atmospheric Sciences, Florida State University, 909 Antarctic Way, Room 108: Carraway Building, Tallahassee, FL 32306 and HOLM-DENOMA, Christopher S., U.S. Geological Survey, Central Mineral and Environmental Resources Science Center, Denver Federal Center, Denver, CO 80225

2-6

9:45 AM

GEOMETRY OF THRUST TRAJECTORIES IN THE SOUTHERN APPALACHIAN HINTERLAND OF GEORGIA AND ALABAMA

TULL, James F., Earth, Ocean, and Atmospheric Sciences, Florida State University, 909 Antarctic Way, Room 108: Carraway Building, Tallahassee, FL 32306

10:05 AM

Break

2-7

10:20 AM

MESOPROTEROZOIC TO CENOZOIC FAULTS AND FAULT ZONES ASSOCIATED WITH THE COMPLEX TECTONIC HISTORY OF THE APPALACHIAN BLUE RIDGE

SOUTHWORTH, Scott, U.S. Geological Survey, MS 926A National Center, Reston, VA 20192

2-8

10:40 AM

THE BLUE RIDGE-PIEDMONT BOUNDARY IN VIRGINIA: A TRANSPRESSIONAL FRONTIER

BAILEY, Christopher M., Department of Geology, College of William & Mary, Williamsburg, VA 23187 and VAUGHAN, Aubrey, Department of Geology, College of William & Mary, P.O. Box 8795, Williamsburg, VA 23187-8795

2-9

11:00 AM

GEOCHRONOLOGY OF THE ELK HILL COMPLEX AND LAKESIDE FAULT ZONE, CENTRAL VIRGINIA PIEDMONT

MCALEER, Ryan J., U.S. Geological Survey, Eastern Geology and Paleoclimate Science Center, 926A National Center, Reston, VA 20192, CARTER, Mark W., U.S. Geological Survey, 926A National Center, Reston, VA 20192, SPEARS, David B., Division of Geology and Mineral Resources, Virginia Department of Mines, Minerals, and Energy, 900 Natural Resources Drive, Suite 500, Charlottesville, VA 22903, REGAN, Sean P., U.S. Geological Survey, PO Box 628, Montpelier, VT 05602 and BURTON, William C., U.S. Geological Survey, MS 926A National Center, Reston, VA 20192

2-10

11:20 AM

INSIGHTS INTO THE GEOMETRY AND EVOLUTION OF THE CHATHAM FAULT AND DAN RIVER BASIN NEAR CHATHAM, VIRGINIA

WARRELL, Kathleen F., Dept. of Earth and Planetary Sciences, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854, POTTER, Christopher J., U.S. Geological Survey, 610 Taylor Road, Rutgers Univ., Piscataway, NJ 08854 and MALINCONICO, MaryAnn L., Department of Geology and Environmental Geosciences, Lafayette College, Easton, PA 18042

2-11

11:40 AM

A DISCUSSION ON THE ALLOCHTHONOUS HISTORY OF THE PINE MOUNTAIN TERRANE GIVEN NEW EVIDENCE FROM ITS NORTHEASTERN EXTENT

HUEBNER, Matthew T., Lettis Consultants International, Inc., 1981 N. Broadway, Suite 330, Walnut Creek, CA 94596, REHRER, Justin R., Nashville, TN 37027 and HATCHER Jr., Robert D., Earth and Planetary Sciences, University of Tennessee, Knoxville, TN 37996

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Southeastern Section - 67th Annual Meeting - 2018

S1. Longstanding Problems and New Ideas About the Structure and Tectonic Evolution of the Southern Appalachians and Other Mountain Belts I: In Honor of the Career of Robert D. Hatcher Jr.