CALL FOR PROPOSALS:

ORGANIZERS

  • Harvey Thorleifson, Chair
    Minnesota Geological Survey
  • Carrie Jennings, Vice Chair
    Minnesota Geological Survey
  • David Bush, Technical Program Chair
    University of West Georgia
  • Jim Miller, Field Trip Chair
    University of Minnesota Duluth
  • Curtis M. Hudak, Sponsorship Chair
    Foth Infrastructure & Environment, LLC

 

Start |Author Index | View Uploaded Presentations | Meeting Information
Session No. 87
Monday, 10 October 2011: 8:00 AM-12:00 PM
Room 101H-J (Minneapolis Convention Center)

T112. Geology and Mineral Deposits of the Midcontinent Rift I

Society of Economic Geologists; UMD Precambrian Research Center; Institute on Lake Superior Geology; GSA Geophysics Division

 

James D. Miller Jr, Suzanne Nicholson, R. Michael Easton and Joshua Feinberg, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
1
8:15 AM
THE 1.1 GA MIDCONTINENT RIFT IN THE LAKE SUPERIOR REGION
CANNON, William F., US Geological Survey, 12201 Sunrise Valley Dr, MS 954, Reston, VA 20192-0001, SCHULZ, K.J., U.S. Geological Survey, Reston, VA 20192 and WOODRUFF, L.G., United States Geological Survey, Mounds View, Mounds View, MN 55112, wcannon@usgs.gov, wcannon@usgs.gov
2
8:30 AM
GEOPHYSICAL OVERVIEW OF THE MIDCONTINENT RIFT SYSTEM
FEINBERG, Joshua M.1, CHANDLER, Val2 and SWANSON-HYSELL, Nicholas L.1, (1)Institute for Rock Magnetism, University of Minnesota, Department of Earth Sciences, 100 Union Street SE, Minneapolis, MN 55455, (2)Minnesota Geological Survey, 2609 Territorial Road, St. Paul, MN 55114, feinberg@umn.edu, feinberg@umn.edu
3
8:45 AM
PERSPECTIVES ON FAILED RIFTING AND FAST DRIFTING USING NEW AND OLD PALEOMAGNETIC DATA FROM THE MIDCONTINENT RIFT
SWANSON-HYSELL, Nicholas L.1, VAUGHAN, Angus A.2 and FEINBERG, Joshua M.1, (1)Institute for Rock Magnetism, University of Minnesota, Department of Earth Sciences, 100 Union Street SE, Minneapolis, MN 55455, (2)Department of Geology, Carleton College, 300 North College Street, Northfield, MN 55057, nswanson@princeton.edu, nswanson@princeton.edu
4
9:00 AM
MAGMA EMPLACEMENT DURING RIFTING AS EXEMPLIFIED BY THE EAST PACIFIC RISE AND THE BALD EAGLE INTRUSION IN THE MIDCONTIENT RIFT
WEIBLEN, Paul W., Minnesota Geological Survey, University of Minnesota, 2642 University Ave. W, Saint Paul, MN 55114, Minneapolis, MN 55114, VISLOVA, Tatiana, Earth Sciences, SUNY College at Oneonta, 885 Westview Drive, Shoreview, MN 55126, PETERSON, Dean M., Senior Vice President, Exploration, Duluth Metals Limited, 306 W. Superior St, Suite 610, Duluth, MN 55802 and CHANDLER, Val W., Minnesota Geological Survey, Univ of Minnesota, 2609 Territorial Road, St. Paul, MN 55114, pweib@umn.edu, pweib@umn.edu
5
9:15 AM
THE NORTH SHORE VOLCANIC GROUP: MESOPROTEROZOIC VOLCANIC ROCKS OF THE MIDCONTINENT RIFT SYSTEM: A REVIEW
GREEN, John C., Earth and Environmental Sciences, Professor Emeritus, University of Minnesota Duluth, Dept. of Earth and Environmental Sciences, University of Minnesota Duluth, Duluth, MN 55812, BOERBOOM, Terrence J., Minnesota Geological Survey, University of Minnesota, 2642 University Avenue W, St. Paul, MN 55114, SCHMIDT, Susanne T., Mineralogy, University of Geneva, Rue des Maraichers 13, CH 1205, Geneva, CH 1205, Switzerland and FITZ, Thomas J., Environmental Science, Northland College, 1411 Ellis Avenue, Ashland, WI 54806-3999, jgreen@d.umn.edu, jgreen@d.umn.edu
6
9:30 AM
SEDIMENTATION IN THE MESOPROTEROZOIC MIDCONTINENT RIFT, LAKE SUPERIOR REGION
OJAKANGAS, Richard W., Department of Geological Sciences, University of Minnesota Duluth, University of Minnesota Duluth, Duluth, MN 55812, rojakang@d.umn.edu, rojakang@d.umn.edu
 
9:45 AM
Break
7
10:00 AM
GEOCHEMICAL EVOLUTION OF 1.1 GA MIDCONTINENT RIFT MAGMATISM
NICHOLSON, Suzanne W., U.S. Geological Survey, 954 National Center, 12201 Sunrise Valley Dr, Reston, VA 20192 and SCHULZ, Klaus J., U.S. Geological Survey, 954 National Center, Reston, VA 20192, swnich@usgs.gov, swnich@usgs.gov
8
10:15 AM
GEOCHEMICAL COMPARISON OF MID CONTINENT RIFT RELATED GABBROIC ROCKS OF THE COLDWELL COMPLEX AND MAFIC SILLS AND DIKES LOCATED ALONG THE NORTH SHORE OF LAKE SUPERIOR, CANADA
GOOD, David J., Stillwater Canada Inc, 11 Sydenham St, Dundas, ON L9H 2T5, Canada, dgood@stillwatercanadainc.com, dgood@stillwatercanadainc.com
9
10:30 AM
RECENT ADVANCES IN GEOCHEMISTRY OF ~1.1 GA MIDCONTINENT RIFT RELATED INTRUSIVE ROCKS AROUND THUNDER BAY, ONTARIO, CANADA
CUNDARI, Robert1, HOLLINGS, Peter1 and SMYK, Mark2, (1)Lakehead University, 955 Oliver Rd, Thunder Bay, ON P7B 5E1, Canada, (2)Ontario Geological Survey, 435 James St. South, Thunder Bay, ON P7E 6S7, Canada, rcundari@lakeheadu.ca, rcundari@lakeheadu.ca
10
10:45 AM
PETROLOGIC EVOLUTION OF A NIPIGON DIABASE SILL, ONTARIO, CANADA: INSIGHTS FROM COMPOSITIONAL AND TEXTURAL PROFILES
ZIEG, Michael J., RYAN, Andrew J., FRANZE, Andrew E. and SPIGLER, Callahan, Geography, Geology, and the Environment, Slippery Rock University, Slippery Rock, PA 16057, michael.zieg@sru.edu, michael.zieg@sru.edu
11
11:00 AM
EMPLACEMENT AND CRYSTALLIZATION HISTORY OF THE TAMARACK INTRUSION, MINNESOTA
GOLDNER, Brian D., Rio Tinto Exploration, 224 N 2200 W, Salt Lake City, UT 84116 and MILLER Jr, James D., Department of Geological Sciences, University of Minnesota Duluth, 230 Heller Hall, Duluth, MN 55812, Brian.Goldner@riotinto.com, Brian.Goldner@riotinto.com
12
11:15 AM
PARENT MAGMA CHARACTERISTICS OF EARLY MIDCONTINENT RIFT ULTRAMAFIC INTRUSIONS
MILLER Jr, James D., Department of Geological Sciences, University of Minnesota Duluth, 230 Heller Hall, Duluth, MN 55812, GOLDNER, Brian D., Rio Tinto Exploration, 224 N 2200 W, Salt Lake City, UT 84116, FOLEY, Daniel Jay, Department of Geological Sciences, University of Minnesota Duluth, 3424 34th ave S, Minneapolis, MN 55406 and HOLLINGS, Pete, Department of Geology, Lakehead University, 955 Oliver Rd, Thunder Bay, ON P7B 5E1, Canada, mille066@umn.edu, mille066@umn.edu
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