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North-Central Section - 35th Annual Meeting (April 23-24, 2001)

Session No. 4
Monday, 23 April 2001: 8:00 AM-12:00 PM

S3. Probing the Precambrian in the Midwest: Reconciling Geological, Geochemical and Geophysical Observations-I

 

James Walker and John McBride, Conveners
Paper #
Start Time
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8:20 AM
DO THERMAL HISTORIES REVEAL TIMING OF POST-OROGENIC CRATONIZATION?: LESSONS FROM TWO PALEOPROTEROZOIC OROGENS WITHIN THE NORTH AMERICAN CRATON
SCHNEIDER, D. A., Dept. of Earth Sciences, Syracuse Univ, Syracuse, NY 13244 and HOLM, D. K., Dept. of Geology, Kent State Univ, Kent, OH 44242, dholm@kent.edu, dholm@kent.edu
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8:00 AM
A GEOPHYSICAL VIEW OF THE PRECAMBRIAN BASEMENT OF SOUTHERN WISCONSIN
CANNON, W. F., DANIELS, D. L., SNYDER, S. L. and NICHOLSON, S. W., USGS, MS 954, Reston, VA 20192, wcannon@usgs.gov, wcannon@usgs.gov
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8:40 AM
PRECAMBRIAN TERRANES IN SOUTHERN WISCONSIN AND NORTHERN ILLINOIS: WHAT'S HIDING IN THE BASEMENT
GREENBERG, Jeffrey K., Wheaton College, 501 College Ave, Wheaton, IL 60187-5593, jeffrey.k.greenberg@wheaton.edu, jeffrey.k.greenberg@wheaton.edu
0
9:00 AM
MAGNETIC AND MINERALOGICAL INVESTIGATIONS OF PHYLLITE LAYERS FROM THE BARABOO AREA, WI
KELLY, Colleen, Geoscienecs, Univ of Wisconsin-Milwaukee, P.O.Box 413, Milwaukee, WI 53201 and KEAN, William F., Geosciences, Univ of Wisconsin-Milwaukee, P.O.Box 413, Milwaukee, WI 53201, colleenk@uwm.edu, colleenk@uwm.edu
0
9:20 AM
RECOGNITION OF WOLF RIVER-AGE METAMORPHISM IN THE BARABOO RANGE BY MEANS OF 40AR/39AR THERMOCHRONOLOGY
NAYMARK, Alissa A., SINGER, Brad S. and MEDARIS Jr, L. Gordon, Department of Geology and Geophysics, Univ of Wisconsin - Madison, 1215 West Dayton Street, Madison, WI 53706, anaymark@students.wisc.edu, anaymark@students.wisc.edu
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9:40 AM
CENTRAL PLAINS OROGEN - ACCRETIONARY CORE OF THE NORTH AMERICAN TRANSCONTINENTAL PROTEROZOIC PROVINCE
CARLSON, Marvin P. and TREVES, Samuel B., Nebraska Geol Survey, 113 Nebraska Hall, Lincoln, NE 68588-0517, mcarlson1@unl.edu, mcarlson1@unl.edu
 
10:00 AM
Break
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10:20 AM
PROTEROZOIC OROGENIC AND MAGMATIC DOMAINS IN THE MIDCONTINENT REGION, USA: GEOCHEMICAL VS GEOPHYSICAL EVIDENCE
VAN SCHMUS, W. R., Dept. of Geology, Univ. Kansas, Lawrence, KS 66045 and BICKFORD, M. E., Dept. of Earth Sciences, Syracuse Univ, Syracuse, NY 13244, rvschmus@ukans.edu, rvschmus@ukans.edu
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10:40 AM
A "NEW" PRECAMBRIAN GEOLOGIC PROVINCE BENEATH THE ILLINOIS BASIN, USA
MCBRIDE, John H. and KOLATA, Dennis R., Illinois State Geological Survey, Univ of Illinois at Urbana-Champaign, 615 E. Peabody Dr, Champaign, IL 61820, mcbride@isgs.uiuc.edu, mcbride@isgs.uiuc.edu
0
11:00 AM
PALEOPROTEROZOIC AND MESOPROTEROZOIC DOMAINS WITHIN THE SOUTHERN GRANITE-RHYOLITE PROVINCE IDENTIFIED USING SM-ND ISOTOPIC METHODS
ROHS, C. R., Geology/Geography, Northwest Missouri State Univ, 800 University Dr, Maryville, MO 64468 and VAN SCHMUS, W. R., Geology, Univ of Kansas, 120 Lindley Hall, Lawrence, KS 66045, rrohs@mail.nwmissouri.edu, rrohs@mail.nwmissouri.edu
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11:20 AM
THE COMMERCE GEOPHYSICAL LINEAMENT AND ITS POSSIBLE RELATION TO PROTEROZOIC IGNEOUS COMPLEXES AND LARGE EARTHQUAKES IN THE CENTRAL ILLINOIS BASIN
HILDENBRAND, Thomas G., U.S. Geol Survey, Mail Stop 989, 345 Middlefield Road, Menlo Park, CA 94025, MCBRIDE, John H., Illinois State Geological Survey and Dept. of Geology, Univ. of Illinois at Urbana-Champaign, 615 E. Peabody Dr, Champaign, IL 61820 and RAVAT, Tiku, Department of Geology, Southern Illinois Univ, MS 4324, Carbondale, IL 62901, tom@usgs.gov, tom@usgs.gov
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11:40 AM
MODELS FOR THE ORIGIN OF THE MESOPROTEROZOIC "GRANITE-RHYOLITE" PROVINCE
SHUSTER, Robert D., Univ Nebraska - Omaha, Dept Geography & Geology, Omaha, NE 68182-0199, Robert_Shuster@unomaha.edu, Robert_Shuster@unomaha.edu
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