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North-Central Section - 48th Annual Meeting (24–25 April)

Session No. 9
Thursday, 24 April 2014: 2:40 PM-5:05 PM
Arbor 1 (Cornhusker Marriott)

T11. The Midcontinent Rift System and Beyond: New Developments in Central North American Precambrian Geology

 

Benjamin J. Drenth, Randy Keller and Joshua M. Feinberg, Advocates
Paper #
Start Time
 
2:40 PM
Introductory Remarks
1
2:45 PM
RIFT MYSTERIES
CARLSON, Marvin P., 3741 Faulkner Drive, #213, Lincoln, NE 68516, rockdrmpc@hotmail.com, rockdrmpc@hotmail.com
2
3:05 PM
THE MID-CONTINENT RIFT – HOW FAR DOES IT GO?
KELLER, G. Randy, School of Geology and Geophysics, University of Oklahoma, Norman, OK 73019, STEIN, Carol A., Earth & Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor St, m/c 186, Chicago, IL 60607-7059, MERINO, Miguel, Department of Earth and Planetary Sciences, Northwestern University, 1850 Campus Drive, Evanston, IL 60208 and STEIN, Seth, Earth and Planetary Sciences, Northwestern University, 1850 Campus Drive, Evanston, IL 60208-2150, grkeller@ou.edu, grkeller@ou.edu
3
3:25 PM
GEOPHYSICAL STUDIES OF THE MIDCONTINENT RIFT SYSTEM IN THE LAKE SUPERIOR REGION:  A REVIEW AND A LOOK TOWARDS THE FUTURE
CHANDLER, Val W., Minnesota Geological Survey, Univ of Minnesota, 2609 Territorial Road, St. Paul, MN 55114, chand004@umn.edu, chand004@umn.edu
4
3:45 PM
PASSIVE ORIGIN OF THE MIDCONTINENT RIFT AND UPLIFT OF THE COLORADO PLATEAU AND HIGH PLAINS BY LOWER CRUSTAL HYDRATION: EVIDENCE FROM HIGH PRECISION DENSITY MODELS
LEVANDOWSKI, Will, Geological Sciences, University of Colorado, 1520 Glencoe St, Unit 1, Denver, CO 80220 and BUTCHER, Lesley Ann, Dept. of Geological Sciences, University of Colorado - Boulder, CB 399, Boulder, CO 80309, will.levandowski@colorado.edu, will.levandowski@colorado.edu
5
4:05 PM
LOWER CRUSTAL XENOLITHS FROM LAKE ELLEN AND SITE 69 DIATREMES, UPPER MICHIGAN PENINSULA:  TRACE ELEMENT AND ISOTOPIC EVIDENCE FOR BASALTIC UNDERPLATING DURING MID-CONTINENT RIFTING AT 1.1GA
KEMPTON, Pamela, Department of Geology, Kansas State University, Manhattan, KS 66506, ZARTMAN, Robert E., Department of Earth, Atmospheric, and Planetary Sciences, MIT, 77 Massachusetts Ave, Building 54-1124, Cambridge, MA 02139, PACES, James, U.S. Geological Survey, Box 25046, MS963, Denver Federal Center, Denver, CO 80225-0046 and DOWNES, Hilary, Department of Earth and Planetary Sciences, Birkbeck, University of London, Malet Street, London, WC1E 7HX, United Kingdom, pkempton@ksu.edu, pkempton@ksu.edu
6
4:25 PM
DISTINCTIVE GEOPHYSICAL ANOMALIES OVER NORTHEAST IOWA: WHAT DO THEY REPRESENT FOR PROTEROZOIC MAGMATISM AND MINERAL RESOURCES?
DRENTH, Benjamin J., U.S. Geological Survey, MS 964 Denver Federal Center, Denver, CO 80225, ANDERSON, Raymond R., Department of Earth and Environmental Science, The University of Iowa, Iowa City, IA 52242, SCHULZ, Klaus J., U.S. Geological Survey, 954 National Center, Reston, VA 20192, CANNON, William F., US Geological Survey, 12201 Sunrise Valley Dr, MS 954, Reston, VA 20192-0001 and CHANDLER, Val W., Minnesota Geological Survey, Univ of Minnesota, 2609 Territorial Road, St. Paul, MN 55114, bdrenth@usgs.gov, bdrenth@usgs.gov
7
4:45 PM
INSIGHTS INTO CONCEALED IRON OXIDE-RARE EARTH ELEMENT DEPOSITS FROM NEW AIRBORNE GEOPHYSICAL DATA, SOUTHEAST MISSOURI
MCCAFFERTY, Anne E., U.S. Geological Survey, P.O. Box 25046, MS964, Denver Federal Center, Denver, CO 80225, anne@usgs.gov, anne@usgs.gov
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