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Rocky Mountain Section - 65th Annual Meeting (15-17 May 2013)

Session No. 18
Thursday, 16 May 2013: 1:00 PM-4:00 PM
South Conference Room (University Center)

T4. Basement Structure in the Colorado Rockies: Assembly and Reactivation

 

Colin Shaw and Joseph L. Allen, Advocates
Paper #
Start Time
 
1:00 PM
Introductory Remarks
1
1:05 PM
STRAIN, VORTICITY, & KINEMATIC ANALYSIS OF THE PROTEROZOIC VALLECITO CONGLOMERATE, NEEDLE MOUNTAINS, SOUTHWESTERN COLORADO: IMPLICATIONS FOR THE YAVAPAI-MAZATAL OROGENY
BAILEY, Christopher, Department of Geology, College of William & Mary, P.O. Box 8795, Williamsburg, VA 23187-8795 and SNELL, Alexandra K., Department of Geology, College of William & Mary, Williamsburg, VA 23187, cmbail@wm.edu, cmbail@wm.edu
2
1:25 PM
KINEMATIC TESTS FOR THE CA. 1.6 GA MODIFICATION OF PALEOPROTEROZOIC CRUST IN COLORADO AND SOUTHERN WYOMING
CUBRICH, Bart T., Geology/Geophysics, UniversityWyoming, 6001 Dodge St, Omaha, WY 82070, HAMLIN, Jeffre W., Geological Sciences, Northern Arizona University, Flagstaff, AZ 86011, CHAMBERLAIN, Kevin R., Dept. of Geology and Geophysics, University of Wyoming, Dept. 3006, 1000 University Avenue, Laramie, WY 82071 and DUEBENDORFER, Ernest M., Department of Geology, Northern Arizona Univ, Box 4099, Flagstaff, AZ 86011, bcubrich@unomaha.edu, bcubrich@unomaha.edu
3
1:45 PM
NEW PETROLOGIC AND GEOCHRONOLOGICAL CONSTRAINTS ON PALEOPROTEROZOIC TECTONOMETAMORPHISM ALONG THE NW MARGIN OF THE WYOMING CRATON, N. MADISON RANGE, SW MONTANA
CONDIT, Cailey B., Geological Sciences, University of Colorado-Boulder, Campus Box 399, 2200 Colorado Ave, Boulder, CO 80309, MAHAN, Kevin, Geological Sciences, University of Colorado, Campus Box 399, 2200 Colorado Ave, Boulder, CO 80309, AULT, Alexis K., Department of Geosciences, University of Arizona, 1040 E. 4th St, Tucson, AZ 85721, FLOWERS, Rebecca, Department of Geological Sciences, University of Colorado, Campus Box 399, 2200 Colorado Ave, Boulder, CO 80309 and JOHNSON, Joshua E., Geological Sciences, University of Colorado-Boulder, Department of Geological Sciences, UCB 399, University of Colorado-Boulder, Boulder, CO 80309-0399, cailey.condit@colorado.edu, cailey.condit@colorado.edu
 
2:05 PM
Break
 
2:15 PM
Precambrian Poster Summaries
4
2:25 PM
40AR/39AR MUSCOVITE THERMOCHRONOLOGY OF PETACA DISTRICT PEGMATITES, NORTHERN, NM
GASTON, Lisa Anne, Earth and Environmental Science, NM Tech, 801 Leroy Place NM Tech, Socorro, NM 87801 and HEIZLER, Matthew, T., New Mexico Bureau of Geology, NM Tech, Socorro, NM 87801, lgaston.geo@gmail.com, lgaston.geo@gmail.com
5
2:45 PM
A REVISED TECTONIC HISTORY FOR PROTEROZOIC ROCKS OF THE SOUTHERN ROCKY MOUNTAINS IN NORTHERN NEW MEXICO
ANDRONICOS, Christopher L., Earth and Atmospheric Sciences, Purdue University, West Lafayette, IN 47907, ARONOFF, Ruth F., Earth, Atmospheric, and Planetary Sciences Dept, Purdue University, West Lafayette, IN 47907, HUNTER, Robert A., Earth and Atmospheric Sciences, Cornell University, 4154 Snee Hall, Ithaca, NY 14853 and VERVOORT, Jeffrey, School of Earth and Environmental Sciences, Washington State University, Webster Physical Science Building 1228, Pullman, WA 99164, candroni@purdue.edu, candroni@purdue.edu
6
3:05 PM
LOCALIZATION OF PSEUDOTACHYLYTE IN MAFIC-INTERMEDIATE DIKES DURING MESOPROTEROZOIC REACTIVATION OF THE HOMESTAKE SHEAR ZONE, COLORADO
ALLEN, Joseph L., BARBERY, Albert and FACEMYER, Christina, Physical Sciences, Concord University, 1000 Vermillion St, Athens, WV 24712, allenj@concord.edu, allenj@concord.edu
7
3:25 PM
DUCTILE PRECURSERS TO SEISMOGENIC RUPTURE RECORDED BY STRAIN GRADIENTS IN DEFORMED QUARTZ VEINS, HOMESTAKE PSEUDOTACHYLYTE ZONE, COLORADO
SHAW, Colin A., Department of Earth Sciences, Montana State University, P.O. Box 173480, Bozeman, MT 59717, colin.shaw1@montana.edu, colin.shaw1@montana.edu
 
3:45 PM
Discussion
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