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GSA 2020 Connects Online

Session No. 108
Wednesday, 28 October 2020: 10:00 AM-12:00 PM

T9. Assembling Laurentia: GEON 14 Enigmas and Advances in Understanding the Crustal Evolution and Paleogeography of the Early Mesoproterozoic North America

GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Geochronology Division; GSA Geophysics and Geodynamics Division; Mineralogical Society of America; GSA Sedimentary Geology Division; GSA Structural Geology and Tectonics Division

 

Christopher G. Daniel, Aphrodite Indares and David P. Moecher, Advocates
Paper #
Start Time
 
10:00 AM
Introductory Remarks
108-1
10:05 AM
A TECTONIC FRAMEWORK FOR MESOPROTEROZOIC NORTH AMERICA AND SUGGESTED FUTURE RESEARCH DIRECTIONS (Invited Presentation)
ARONOFF, Ruth F., Earth, Environmental, and Sustainability Sciences, Furman University, 3300 Poinsett Highway, Greenville, SC 29613, HARRIS, Isabelle, Earth, Environmental, and Sustainability Sciences, Furman University, 3300 Poinsett Highway, Greenville, SC 29613; Earth, Environmental, and Sustainability Sciences, Furman University, 3300 Poinsett Highway, Greenville, SC 29613, JONES III, James V., U.S. Geological Survey, Alaska Science Center, Anchorage, AK 99508, DANIEL, Christopher G., Geology & Environmental Geosciences, Bucknell University, Lewisburg, PA 17837 and VERVOORT, Jeffrey D., School of the Environment, Washington State University, Pullman, WA 99164
108-2
10:20 AM
THE RIFTING AND REASSEMBLY OF QUEBECIA: A TALE OF ANDEAN STYLE 1.50–1.35 GA ARC DYNAMICS IN THE SOUTHEASTERN LAURENTIAN MARGIN (Invited Presentation)
GROULIER, Pierre-Arthur, Département des sciences de la Terre et de l'atmosphère, Université du Québec à Montréal, Pavillon Président-Kennedy, 201 avenue du Président-Kennedy, Montréal, QC H2X3Y7, Canada, INDARES, Aphrodite, Earth Science, Memorial University of Newfoundland (MUN), Alexander Murray Building, St. John's, NF A1B 3X5, Canada, DUNNING, G.R., Department of Earth Sciences, Memorial University of Newfoundland, Alexander Murray Building, St. John's, NF A1B 3X5, Canada and MOUKHSIL, Abdelali, Ministère de l'Énergie et des Ressources naturelles, Quebec, QC G1H 6R1
108-3
10:35 AM
GEON 14 OROGENESIS IN SOUTHERN LAURENTIA: A PERSPECTIVE FROM THE MIDCONTINENTAL BARABOO OROGENY (Invited Presentation)
MEDARIS Jr., L. Gordon1, SINGER, Brad S.1, JICHA, Brian R.1, MALONE, David2, SCHWARTZ, Joshua3, STEWART, Esther K.4, VAN LANKVELT, Amanda5, WILLIAMS, Michael L.6 and REINERS, Peter W.7, (1)Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St., Madison, WI 53706, (2)Department of Geology, Illinois State University, Campus Box 4400, Bloomington, IL 61701, (3)Department of Geological Sciences, California State University Northridge, 18111 Nordhoff St., Northridge, CA 91330, (4)Wisconsin Geological and Natural History Survey, 3817 Mineral Point Rd, Madison, WI 53705, (5)Cameca Instruments, 5470 Nobel Drive, Madison, WI 54711, (6)Department of Geosciences, University of Massachusetts, Amherst, 627 North Pleasant St, Amherst, MA 01003-9297, (7)Department of Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322
 
10:50 AM
Discussion
108-4
11:00 AM
BETWEEN THE SUPERCONTINENTS: MESOPROTEROZOIC DEER TRAIL GROUP, AN INTERMEDIATE AGE UNIT BETWEEN THE MESOPROTEROZOIC BELT-PURCELL SUPERGROUP AND THE NEOPROTEROZOIC WINDERMERE SUPERGROUP IN NORTHEASTERN WASHINGTON, USA
BOX, Stephen E.1, PRITCHARD, Chad J.2, STEPHENS, Travis Scott2 and O'SULLIVAN, Paul B.3, (1)U.S. Geological Survey, 904 W. Riverside Ave, Room 202, Spokane, WA 99201, (2)Department of Geology, Eastern Washington University, 130 Science Building, Cheney, WA 99004-2439, (3)GeoSep Services, 1521 Pine Cone Road, Moscow, ID 87872-9709
108-5
11:15 AM
A BACK-ARC SETTING IS PROBLEMATIC FOR GRENVILLIAN ANORTHOSITE-FERROAN GRANITE SUITES
FROST, B. Ronald and FROST, Carol D., Department of Geology and Geophysics, University of Wyoming, Dept. 3006, 1000 E. University Avenue, Laramie, WY 82071
108-6
11:30 AM
THE END OF AN ERA: HOW GEON 14 CAME TO A CLOSE DURING GEON 13 WITH THE APPROACH OF AMAZONIA AND RODINIAN COLLISION – EVIDENCE FROM SOUTHEASTERN LAURENTIA AND SOUTHWESTERN AMAZONIA
MOECHER, David P., Earth & Env. Sciences, University of Kentucky, 101 Slone Bldg, Lexington, KY 40506-0053, TOHVER, Eric, Instituto de Geosciências, Universidade de São Paolo, São Paolo, 05508-080, Brazil and SAMSON, Scott D., Earth Sciences, Syracuse University, Syracuse, NY 13244
 
11:45 AM
Discussion & Concluding Remarks
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