Rocky Mountain - 62nd Annual Meeting (21-23 April 2010)
Session No. 24 Friday, 23 April 2010
8:00 AM-10:00 AM, Rushmore Plaza Civic Center: Alpine Room

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

Michael Terry, Presiding
 Paper #Start Time
24-18:00 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, pdahl@kent.edu, (2) Institute of Geography and Geology, University of Copenhagen, Øster Voldgade 10, Copenhagen, DK-1350, Denmark, (3) Laboratory for Isotope Geology, Swedish Museum of Natural History, Stockholm, SE-104 05, Sweden, (4) U. S. Geol Survey, 345 Middlefield Road, MS977, Menlo Park, CA 94025
24-28:20 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, jhark@kent.edu, (2) Institute of Geography and Geology, University of Copenhagen, Øster Voldgade 10, Copenhagen, DK-1350, Denmark, (3) Laboratory for Isotope Geology, 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
24-38:40 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, bauerr@missouri.edu, 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
24-49:00 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
24-59:20 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, nabelekp@missouri.edu and VAN BOENING, Angela, Department of Geography and Geology, University of Nebraska-Omaha, Omaha, NE 68182
24-69:40 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, dsjones@uwyo.edu, 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

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