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Rocky Mountain - 62nd Annual Meeting (21-23 April 2010)

Session No. 24
Friday, 23 April 2010: 8:00 AM-10:00 AM
Alpine Room (Rushmore Plaza Civic Center)

T2. Structural and Tectonic Evolution of the Proterozoic Trans-Hudson–Archean Wyoming Province Boundary

 

Michael Terry, Advocates
Paper #
Start Time
1
8:00 AM
MORE EVIDENCE THAT THE BLACK HILLS DOMAIN WAS ORIGINALLY PART OF THE ARCHEAN WYOMING CRATON: OCCURRENCES OF 3.8-2.6 GA DETRITAL ZIRCONS IN 2.5-1.9 GA METASEDIMENTARY ROCKS
DAHL, Peter S.1, HARK, Jessica S.1, FREI, Robert2, GHOSH, Amiya K.1, WHITEHOUSE, Martin J.3 and WOODEN, Joseph L.4, (1)Department of Geology, Kent State University, Kent, OH 44242, (2)Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, Copenhagen, 1350, Denmark, (3)Department of Geosciences, Swedish Museum of Natural History, Stockholm, SE-104 05, Sweden, (4)U. S. Geol Survey, 345 Middlefield Road, MS977, Menlo Park, CA 94025, pdahl@kent.edu, pdahl@kent.edu
2
8:20 AM
U-PB AGES OF ZIRCON, MONAZITE, AND XENOTIME IN THE HARNEY PEAK GRANITE, BLACK HILLS, SD: IMPLICATIONS FOR THE TIMING AND DURATION OF SYN- TO POST-OROGENIC MAGMATISM
HARK, Jessica S.1, DAHL, Peter S.1, FREI, Robert2, GHOSH, Amiya K.1, WHITEHOUSE, Martin J.3, WOODEN, Joe4 and REDDEN, Jack A.5, (1)Department of Geology, Kent State University, Kent, OH 44242, (2)Department of Geosciences and Natural Resource Management, University of Copenhagen, Øster Voldgade 10, Copenhagen, 1350, Denmark, (3)Department of Geosciences, Swedish Museum of Natural History, Stockholm, SE-104 05, Sweden, (4)USGS-Stanford Ion Microprobe Laboratory, Stanford University, Stanford, CA 94305, (5)Department of Geology and Geological Engineering, South Dakota School of Mines and Technology, Rapid City, SD 57701-3995, jhark@kent.edu, jhark@kent.edu
3
8:40 AM
MULTIPHASE PROTEROZOIC REWORKING OF THE SOUTHEASTERN MARGIN OF THE WYOMING ARCHEAN PROVINCE IN THE CENTRAL LARAMIE MOUNTAINS, WYOMING
BAUER, Robert L., Geological Sciences, University of Missouri, 101 Geological Sciences Bldg, Columbia, MO 65211, TOMLIN, Kenneth, Missouri Department of Natural Resources, P.O. Box 176, Jefferson City, MO 65102-0176 and GOERGEN, Eric, Geological Sciences, Brown University, Geochemistry Building Room 030, Providence, RI 02912, bauerr@missouri.edu, bauerr@missouri.edu
4
9:00 AM
RETHINKING THE PROTEROZOIC ASSEMBLING OF THE NORTH-CENTRAL US
ALLARD, Stephen T., Department of Geoscience, Winona State University, P.O. Box 5838, Winona, MN 55987, sallard@winona.edu, sallard@winona.edu
5
9:20 AM
TECTONIC IMPLICATIONS OF PALEOPROTEROZOIC MAFIC ROCKS IN THE BLACK HILLS, SOUTH DAKOTA
NABELEK, Peter, Dept. of Geological Sciences, University of Missouri, Columbia, MO 65211 and VAN BOENING, Angela, Department of Geology and Geophysics, Texas A&M University, College Station, TX 77840, nabelekp@missouri.edu, nabelekp@missouri.edu
6
9:40 AM
IS THE CHEYENNE BELT THE MAZATZAL DEFORMATION FRONT?: EVIDENCE FOR REACTIVATION OF THE CHEYENNE BELT AT ~1.65–1.63 GA
JONES, Daniel S., Dept. Geology and Geophysics, Univ. of Wyoming, Laramie, WY 82071, PREMO, Wayne R., U.S. Geol Survey, MS 980, P.O. Box 25046, Denver Federal Center, Denver, CO 80225, MAHAN, Kevin H., Geological Sciences, University of Colorado-Boulder, 2200 Colorado Ave, Boulder, CO 80309 and SNOKE, Arthur W., Dept. Geology and Geophysics, Univ of Wyoming, Laramie, WY 82071, dsjones@uwyo.edu, dsjones@uwyo.edu
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