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GSA Annual Meeting in Indianapolis, Indiana, USA - 2018

Session No. 16
Sunday, 4 November 2018: 8:00 AM-12:00 PM
Room 242 (Indiana Convention Center)

T158. Evolution of the Midcontinent Rift: A Window into Proterozoic Environments, a Repository of Minerals, and a Lesson in Rifting I

GSA Geophysics and Geodynamics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Structural Geology and Tectonics Division; GSA Sedimentary Geology Division; Society of Economic Geologists; GSA Geobiology & Geomicrobiology Division

 

Nicholas L. Swanson-Hysell, Seth Stein and Tyrone O. Rooney, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
16-1
8:15 AM
PRECAMBRIAN RIFT SYSTEMS IN NORTH AMERICA COMPARED TO OTHER CONTINENTAL RIFTS AROUND THE WORLD
KELLER, G. Randy, School of Geology and Geophysics, University of Oklahoma, 100 E. Boyd, Norman, OK 73019, STEIN, Seth A., Earth & Planetary Sciences, Northwestern University, Evanston, IL 60208, STEIN, Carol A., Earth & Environmental Sciences, University of Illinois at Chicago, Chicago, IL 60607 and ELLING, Reece P., Department of Earth & Planetary Sciences, Northwestern University, Evanston, IL 60208
16-2
8:30 AM
DEPTH AND TIME DEPENDENCE OF STRAIN PARTITIONING IN THE DEVELOPMENT OF MESOZOIC AND CENOZOIC EXTENSIONAL STRUCTURES WITHIN THE TURKANA DEPRESSION, EAST AFRICA
EMISHAW, Luelseged, Boone Pickens School of Geology, Oklahoma State University, 105 Noble Research Center, Stillwater, OK 74078-3031 and ABDELSALAM, Mohamed, Oklahoma State University, Stillwater, OK 74078
16-3
8:45 AM
PROTEROZOIC RIFTING IN THE BALTIC SHIELD REVISITED: LADOGA IS NOT A RIFT
ARTEMIEVA, Irina M., Geology Section, IGN, University of Copenhagen, Oester Voldgade 10, Copenhagen, DK-1350, Denmark and SHULGIN, Alexey, CEED, University of Oslo, Oslo, NO-0315, Norway
16-4
9:00 AM
SEISMIC STRATIGRAPHY OF THE 1.1 GA MIDCONTINENT RIFT BENEATH WESTERN LAKE SUPERIOR PART I: SUBSIDENCE AS A MAJOR DRIVER ON BASIN DEVELOPMENT (Invited Presentation)
STEWART, Esther K., Wisconsin Geological and Natural History Survey, University of Wisconsin–Extension, 3817 Mineral Point Rd, Madison, WI 53705, GRAUCH, V.J.S., U.S. Geological Survey, Box 25046, DFC, MS 964, Denver, CO 80225, WOODRUFF, Laurel G., U.S. Geological Survey, 2280 Woodale Drive, St. Paul, MN 55112 and HELLER, Samuel, U.S. Geological Survey, Box 25046, DFC, MS 939, Denver, CO 80225
16-5
9:20 AM
AEROMAGNETIC DATA ESTIMATE MAGNETIC SOURCE DEPTHS BENEATH LAKE SUPERIOR
ANDERSON, Eric D., US Geological Survey, Denver Federal Center, Bldg 20, MS 964, Denver, CO 80225 and GRAUCH, V.J.S., U.S. Geological Survey, Box 25046, DFC, MS 964, Denver, CO 80225
16-6
9:35 AM
REVERSE FAULT OR COMPLEX FEEDER ZONE?: EVALUATING GEOPHYSICAL OBSERVATIONS OF THE 1.1 GA MIDCONTINENT RIFT FROM ISLE ROYALE TO SUPERIOR SHOAL AND BROADER GEOLOGIC IMPLICATIONS FOR NORTHERN LAKE SUPERIOR
GRAUCH, V.J.S., U.S. Geological Survey, Box 25046, DFC, MS 964, Denver, CO 80225, WOODRUFF, Laurel G., U.S. Geological Survey, 2280 Woodale Drive, St. Paul, MN 55112 and STEWART, Esther K., Wisconsin Geological and Natural History Survey, University of Wisconsin–Extension, 3817 Mineral Point Rd, Madison, WI 53705
16-7
9:50 AM
DIVERSE FEEDER SOURCES FOR THE PORTAGE LAKE VOLCANICS, MIDCONTINENT RIFT SYSTEM (Invited Presentation)
WOODRUFF, Laurel G.1, GRAUCH, V.J.S.2, STEWART, Esther K.3, SCHULZ, Klaus J.4 and NICHOLSON, Suzanne W.4, (1)U.S. Geological Survey, 2280 Woodale Drive, St. Paul, MN 55112, (2)U.S. Geological Survey, Box 25046, DFC, MS 964, Denver, CO 80225, (3)Wisconsin Geological and Natural History Survey, University of Wisconsin–Extension, 3817 Mineral Point Rd, Madison, WI 53705, (4)U.S. Geological Survey, 954 National Center, 12201 Sunrise Valley Dr, Reston, VA 20192
 
10:10 AM
Break
16-8
10:25 AM
CONSTRAINING THE GEOCHEMICAL RESERVOIRS CONTRIBUTING TO VOLCANISM IN THE KEWEENAW LIP
ROONEY, Tyrone O.1, LAVIGNE, Andrew1, KONTER, Jasper2, BROWN, Eric3, STEIN, Seth4, MOUCHA, Robert5 and STEIN, Carol A.6, (1)Earth and Environmental Sciences, Michigan State University, 288 Farm Lane, Room 207, East Lansing, MI 48824, (2)Department of Geology and Geophysics, University of Hawaii, Honolulu, HI 96822, (3)Department of Geoscience, Aarhus University, Aarhus, 8000, Denmark, (4)Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, (5)Department of Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244, (6)Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, IL 60607-7059
16-9
10:40 AM
MAGMATIC PLUMBING EVOLUTION DURING THE LATENT PHASE OF THE MIDCONTINENT RIFT
HUDGINS, Thomas R., Department of Geology, University of Puerto Rico Mayaguez, Call Box 9000, University of Puerto Rico Mayaguez, Mayaguez, PR 00681 and ROONEY, Tyrone O., Michigan State University, Earth and Environmental Sciences, 207 Natural Science, East Lansing, MI 48824
16-10
10:55 AM
CRUSTAL CONTAMINATION IN THE TERMINAL STAGES OF THE KEWEENAWAN LARGE IGNEOUS PROVINCE: GEOCHEMICAL EVIDENCE FROM THE PORCUPINE MOUNTAINS
SVOBODA, Christopher1, ROONEY, Tyrone O.2, LAVIGNE, Andrew1, BROWN, Eric3, STEIN, Seth A.4, STEIN, Carol A.5, MOUCHA, Robert6 and KONTER, Jasper7, (1)Earth and Environmental Sciences, Michigan State University, 288 Farm Lane, Room 207, East Lansing, MI 48824, (2)Dept. of Geological Sciences, Michigan State University, 288 Farm Lane (Room 206), East Lansing, MI 48824, (3)Department of Geoscience, Aarhus University, Aarhus, 8000, Denmark, (4)Earth & Planetary Sciences, Northwestern University, Evanston, IL 60208, (5)Earth & Environmental Sciences, University of Illinois at Chicago, Chicago, IL 60607, (6)Department of Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244, (7)Department of Geology and Geophysics, University of Hawaii, Honolulu, HI 96822
16-11
11:10 AM
TERMINAL STAGES OF A DYING RIFT
LAVIGNE, Andrew1, ROONEY, Tyrone O.1, KONTER, Jasper2, MOUCHA, Robert3, BROWN, Eric4, STEIN, Seth A.5 and STEIN, Carol A.6, (1)Earth and Environmental Sciences, Michigan State University, 288 Farm Lane, Room 207, East Lansing, MI 48824, (2)Department of Geology and Geophysics, University of Hawaii, Honolulu, HI 96822, (3)Department of Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244, (4)Department of Geoscience, Aarhus University, Aarhus, 8000, Denmark, (5)Earth & Planetary Sciences, Northwestern University, Evanston, IL 60208, (6)Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor Street, Chicago, IL 60607-7059
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