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2015 GSA Annual Meeting in Baltimore, Maryland, USA (1-4 November 2015)

Session No. 341
Wednesday, 4 November 2015: 1:30 PM-5:30 PM
Room 314 (Baltimore Convention Center)

T212. Deconstructing Rodinia: Neoproterozoic-Cambrian Geologic Evolution of Laurentia’s Margins

GSA Structural Geology and Tectonics Division; GSA Geophysics Division; GSA Sedimentary Geology Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Precambrian Geology; SEPM (Society for Sedimentary Geology); Geochemical Society; Society of Economic Geologists; Paleoceanography/Paleoclimatology Discipline; Paleontological Society
Chris Holm-Denoma and Arthur J. Merschat, Session Chairs
Paper #
Start Time
341-1
1:30 PM
PROTEROZOIC PALEOGEOGRAPHY OF TARIM BLOCK: AN EXTENDED OR ALTERNATIVE "MISSING-LINK" MODEL FOR RODINIA?
WEN, Bin1, EVANS, David A.D.2 and LI, Yongxiang1, (1)State Key Laboratory for Mineral Deposits Research, School of Earth Sciences and Engineering, Nanjing University, Nanjing, 210046, China, (2)Department of Geology and Geophysics, Yale University, New Haven CT 06520-8109, USA, New Haven, CT 06520, david.evans@yale.edu
341-2
1:50 PM
SPATIAL AND TEMPORAL COMPLEXITIES OF THE EASTERN LAURENTIAN MARGIN: NEW INSIGHT FROM OLD ROCKS OF THE APPALACHIAN BLUE RIDGE AND WESTERN PIEDMONT
SOUTHWORTH, Scott, U.S. Geological Survey, MS 926A National Center, Reston, VA 20192-0001, ALEINIKOFF, J.N., USGS, MS 963, Denver, CO 80225, HOLM-DENOMA, Chris, Central Mineral and Environmental Resources Science Center, U.S. Geological Survey, Box 25046, MS 973, Denver, CO 80225-0046, MERSCHAT, Arthur J., Eastern Geology and Paleoclimate Science Center, U. S. Geological Survey, MS 926A, Reston, VA 20192 and SATKOSKI, Aaron M., Department of Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244-1070, ssouthwo@usgs.gov
341-3
2:05 PM
TECTONO-STRATIGRAPHIC FRAMEWORK OF NEOPROTEROZOIC TO EARLY PALEOZOIC STRATA, WESTERN US: PROTRACTED RIFTING AND EVOLUTION OF THE WESTERN LAURENTIA MARGIN
YONKEE, Adolph, Department of Geosciences, Weber State University, 2507 University Circle, Ogden, UT 84408, DEHLER, Carol M., Department of Geology, Utah State Univ, 4505 Old Main Hill, Logan, UT 84322, LINK, Paul K., Geosciences, Idaho State University, 921 S. 8th Ave, STOP 8072, Pocatello, ID 83209, BALGORD, Elizabeth, Geology, University of Arizona, 242 E 5th St, Tucson, AZ 85705, KEELEY, Joshua A., Department of Geosciences, Idaho State University, 619 N. Arthur, Pocatello, ID 83204, WELLS, Michael L., Dept. of Geoscience, Univ of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, NV 89154-4010, FANNING, C. Mark, Research School of Earth Sciences, Australian National Univ, Canberra, ACT, Australia and JOHNSTON, Scott M., Physics Department, California Polytechnic State University, San Luis Obispo, CA 93407, ayonkee@weber.edu
341-4
2:25 PM
THE DETRITAL RECORD OF NEOPROTEROZOIC TO CAMBRIAN ROCKS FROM THE SOUTHERN APPALACHIAN BLUE RIDGE: PROTRACTED RIFTING, RAPID UNROOFING, AND STABILIZATION OF THE MARGIN
HOLM-DENOMA, Christopher S., Central Mineral and Environmental Resources Science Center, United States Geological Survey, Box 25046, MS 973, Denver, CO 80225-0046, SOUTHWORTH, C.S., U.S. Geol Survey, MS 926-A National Center, Reston, VA 20192, MERSCHAT, Arthur J., Eastern Geology and Paleoclimate Science Center, U. S. Geological Survey, MS 926A, Reston, VA 20192 and MCCLELLAN, Elizabeth, Department of Geology, Radford Univ, P.O. Box 6939, Radford, VA 24142, cholm-denoma@usgs.gov
341-5
2:40 PM
ONE NEOPROTEROZOIC GLACIATION, TWO EPISODES OF EXTENSION, AND ONE RIFT RECORDED AT GATAGA MOUNTAIN IN NORTHERN BRITISH COLUMBIA
EYSTER, Athena E., Department of Earth and Planetary Sciences, Harvard University, 20 Oxford St, Cambridge, MA 02138, MACDONALD, Francis A., Department of Earth and Planetary Sciences, Harvard University, 2, Cambridge, MA 02138, FERRI, Filippo, British Columbia Ministry of Energy, Mines and Petroleum Resources, PO Box 9323 Stn Prov Govt, Victoria, BC V8W, Canada and SCHMITZ, Mark D., Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535, aeyster@fas.harvard.edu
341-6
2:55 PM
BREAKING UP RODINIA: MAGMATIC AND SEDIMENTOLOGICAL EVIDENCE FOR A MANTLE PLUME TRIGGER
MCCLELLAN, Elizabeth1, HOLM-DENOMA, Christopher S.2, GAZEL, Esteban3, RISSO, Branden R.4 and BROWN, Elise1, (1)Department of Geology, Radford Univ, P.O. Box 6939, Radford, VA 24142, (2)Central Mineral and Environmental Resources Science Center, United States Geological Survey, Box 25046, MS 973, Denver, CO 80225-0046, (3)Department of Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061, (4)Department of Geology, Radford University, P.O. Box 6939, Radford, VA 24142, emcclellan@radford.edu
341-7
3:10 PM
WAS THE AREQUIPA MASSIF THE CONJUGATE RIFTED MARGIN OF EASTERN LAURENTIA?
HODGIN, Eben Blake, Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02130, CARLOTTO, Victor, Universidad Nacional de San Antonio Abad del Cusco, Avenida de la Cultura, 733, Cusco, 921, Peru, CROWLEY, James, Boise, ID 83725 and MACDONALD, Francis A., Department of Earth and Planetary Sciences, Harvard University, 2, Cambridge, MA 02138, hodgin@fas.harvard.edu
341-8
3:25 PM
SEGMENTATION OF THE WESTERN LAURENTIAN CONTINENTAL MARGIN:  EVIDENCE FOR ACTIVE TECTONISM IN THE NEOPROTEROZOIC-CAMBRIAN ‘MIOGEOCLINE’
MAHONEY, J. Brian, Department of Geology, Univ. of Wisconsin-Eau Claire, 105 Garfield Ave, Eau Claire, WI 54702, LINK, Paul K., Geosciences, Idaho State University, 921 S. 8th Ave, STOP 8072, Pocatello, ID 83209 and PEARSON, David M., Department of Geosciences, Idaho State University, Pocatello, ID 83209, MAHONEJ@uwec.edu
 
3:40 PM
Break
341-9
3:55 PM
CAP CARBONATE PLATFORM FACIES MODEL, NEOPROTEROZOIC NOONDAY FORMATION, SE CALIFORNIA
CREVELING, Jessica R., CEOAS, Oregon State University, Corvallis, OR 97331, BERGMANN, Kristin D., Earth and Planetary Sciences, Harvard University, 51 Botanical Museum, 24 Oxford Street, Cambridge, MA 02138 and GROTZINGER, John P., Geological and Planetary Sciences, California Institute of Technology, 1200 E. California Blvd, Pasadena, CA 91125, jcrevel@gps.caltech.edu
341-10
4:10 PM
CHRONOSTRATIGRAPHY OF THE LATE EDIACARAN - EARLY CAMBRIAN CHILHOWEE CLASTIC SUCCESSION OF SOUTHERN LAURENTIA: REDUX WITH REFINEMENT
HAGEMAN, Steven J., Department of Geology, Appalachian State Univ, Boone, NC 28608 and MILLER III, William, Geology, Humboldt State University, Arcata, CA 95521, hagemansj@appstate.edu
341-11
4:25 PM
USING DETRITAL ZIRCON TO CORRELATE AND RECONSTRUCT NEOPROTEROZOIC AND EARLY PALEOZOIC COMPONENTS OF PERI-LAURENTIAN TERRANES IN THE NORTHERN CORDILLERA AND ALASKA
JONES III, James V., U.S. Geological Survey, Alaska Science Center, 4210 University Drive, Anchorage, AK 99508, HOLM-DENOMA, Christopher S., Central Mineral and Environmental Resources Science Center, United States Geological Survey, Box 25046, MS 973, Denver, CO 80225-0046 and O'SULLIVAN, Paul B., GeoSep Services, 1521 Pine Cone Road, Moscow, ID 87872, jvjones@usgs.gov
341-12
4:40 PM
DECOUPLING OF WHOLE-ROCK ND AND ZIRCON U-PB AND HF ISOTOPE SEDIMENT PROVENANCE DETERMINATIONS: EXAMPLES FROM NEOPROTEROZOIC-CAMBRIAN SEDIMENTARY ROCKS ALONG THE WESTERN MARGIN OF LAURENTIA
FARMER, G. Lang, Dept. of Geological Sciences and CIRES, University of Colorado - Boulder, Boulder, CO 80309 and FEDO, Christopher M., Department of Earth & Planetary Sciences, University of Tennessee, 1412 Circle Drive, Knoxville, TN 37996, farmer@colorado.edu
341-13
4:55 PM
TESTING FOR THE EFFECTS OF SEDIMENT SORTING ON DETRITAL-ZIRCON AGE SPECTRA: CASE STUDIES FROM THE WOOD CANYON FORMATION (CAMBRIAN) AND STIRLING QUARTZITE (NEOPROTEROZOIC), SOUTHEASTERN CA
MUHLBAUER, Jason, Department of Earth & Planetary Sciences, University of Tennessee, 1412 Circle Dr, Room 306, Knoxville, TN 37996, FEDO, Christopher M., Department of Earth & Planetary Sciences, University of Tennessee, 1412 Circle Drive, Knoxville, TN 37996 and FARMER, G. Lang, Department of Geological Sciences, University of Colorado, Boulder, CO 80309, jmuhlbau@vols.utk.edu
341-14
5:10 PM
HAFNIUM ISOTOPE EVIDENCE ON THE SOURCES OF GRENVILLE-AGE DETRITAL ZIRCON DEPOSITED AT THE GREAT UNCONFORMITY
HANTSCHE, Aaron L.1, FARMER, G. Lang1, SIDDOWAY, Christine2 and FEDO, Christopher M.3, (1)Dept. of Geological Sciences and CIRES, University of Colorado - Boulder, Boulder, CO 80309, (2)Department of Geology, Colorado College, 14 East Cache La Poudre, Colorado Springs, CO 80903, (3)Department of Earth & Planetary Sciences, University of Tennessee, 1412 Circle Drive, Knoxville, TN 37996, aaron.hantsche@colorado.edu
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