2008 Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section of SEPM

Session No. 341
Thursday, 9 October 2008: 8:00 AM-12:00 PM

T57. Evolution of the Lithosphere and Upper Mantle in the Western U.S.

GSA Geophysics Division

 

Alan Levander, Cin-Ty Lee, Adrian Lenardic and Fenglin Niu, Advocates
Paper #
Start Time
1
8:00 AM
Upper Mantle P-Wave Tomography beneath the Western United States from USArray and Global Data
BURDICK, Scott1, VAN DER HILST, Robert D.1, VERNON, Frank L.2 and PAVLIS, Gary L.3, (1)Dept. Earth, Atm. & Planet. Sci, Massachusetts Institute of Technology, Cambridge, MA 02139, (2)Igpp, University of California San Diego, La Jolla, CA 92093, (3)Department of Geological Sciences, Indiana University, Bloomington, IN 47405, sburdick@mit.edu, sburdick@mit.edu
2
8:20 AM
Origin of Miocene Volcanism near the Coast In Central and Southern California, Revisited
CASTILLO, Paterno R., Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093-0212, pcastillo@ucsd.edu, pcastillo@ucsd.edu
3
8:35 AM
The Ignimbrite Flareup, Flood Basalts and the Yellowstone Hotspot: How Subducting Slab Controlled Pacific Northwest Backarc Magmatism
HUMPHREYS, Eugene D., Geological Sciences, University of Oregon, Eugene, OR 97403, ghump@uoregon.edu, ghump@uoregon.edu
4
8:55 AM
Lithosperic Evolution of the North American Cordilleran Interior during the Cenozoic – Lessons from Arizona
DUCEA, Mihai N., Department of Geosciences, University of Arizona, Gould-Simpson Bldg, Tucson, AZ 85721-0077, ducea@geo.arizona.edu, ducea@geo.arizona.edu
5
9:15 AM
Late Jurassic Igneous Rocks in South-Arizona and North-Central Sonora: Magmatic Record of Crustal Extension
HAXEL, Gordon B., US Geol Survey, 2255 N Gemini Dr, Flagstaff, AZ 86001-1637 and ANDERSON, Thomas H., Department of Geology and Planetary Science, University of Pittsburgh, Pittsburgh, PA 15260, ghaxel@usgs.gov, ghaxel@usgs.gov
6
9:30 AM
Late Cenozoic Mantle Upwelling at the Western and Southern Margins of the Colorado Plateau?
BALDRIDGE, W. Scott, Earth and Environmental Sciences Division, Los Alamos National Laboratory, M. S. D462, Los Alamos, NM 87544, VAN WIJK, Jolante, Earth and Environmental Sciences Division, Los Alamos National Laboratory, MS D443, Los Alamos, NM 87544, ASTER, Richard, Earth and Environmental Science, New Mexico Institute of Mining and Technology, Socorro, NM 87801, COBLENTZ, David, Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545, GRAND, Stephen P., Department of Geological Sciences, University of Texas at Austin, 1 University Station C1100, Austin, TX 78712, NI, James, Department of Physics, New Mexico State University, MSC 3D, Las Cruces, NM 88003-8001 and VAN HUNEN, Jeroen, Department of Earth Sciences, Durham University, Rm. 325, Durham, DH1 3HP, United Kingdom, sbaldridge@lanl.gov, sbaldridge@lanl.gov
7
9:45 AM
Geochemical Evidence for a Dense Mafic Root of Units In the Wallowa Batholith, Wallowa Mountains, Northeast Oregon
O'DRISCOLL, Leland J., Earth Sciences, University of Southern California, Los Angeles, CA 90089 and JOHNSON, Kenneth, Department of Natural Sciences, University of Houston-Downtown, 1 Main Street, Suite N813, Houston, TX 77002, ljo.geo@gmail.com, ljo.geo@gmail.com
 
10:00 AM
Break
8
10:15 AM
Estimates of Permanent Strain Rates In the Western US
MCCAFFREY, Robert, Earth & Environmental Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180, KING, Robert W., EAPS, Massachusetts Institute of Technology, Cambridge, MA 02139 and PAYNE, Suzette J., Geosciences, Idaho National Laboratory, P.O. Box 1625, Idaho Falls, ID 83415-2025, mccafr@rpi.edu, mccafr@rpi.edu
9
10:30 AM
Effect of Radioactivity Decay and Erosion on Surface Heat Flow- Heat Production Time Plots
THAKUR, Mahesh and BLACKWELL, David D., Huffington Department of Earth Sciences, Southern Methodist Univeristy, PO Box 750395, Dallas, TX 75275, mthakur@smu.edu, mthakur@smu.edu
10
10:45 AM
Cenozoic Evolution of the Thermal Regime of the Continental Mantle in Western USA: A Comparative Study Constrained by Petrologic Data
ARTEMIEVA, Irina M., Geological Section, IGN, Copenhagen University, Oester Voldgade 10, Copenhagen, DK-1350, Denmark, irina@geo.ku.dk, irina@geo.ku.dk
11
11:00 AM
New Observations on the Extent of Cambrian Rifting In Colorado: An Update
PARDO, Jessica, School of Geology and Geophysics, University of Oklahoma, 100 East Boyd, Norman, OK 73019, KELLER, G. Randy, School of Geology and Geophysics, University of Oklahoma, 100 E. Boyd, Norman, OK 73019 and HOLLOWAY, Stephen, School of Geology and Geophysics, University of Oklahoma, 100 E. Boyd St, Sarkeys Energy Center Suite 710, Norman, OK 73019, jessicapardo@ou.edu, jessicapardo@ou.edu
12
11:15 AM
A Refined Interpretation of the Medicine Bow Orogeny, Southeastern Wyoming: Accretion, Delamination, and Collision
JONES, Daniel S.1, SNOKE, Arthur1, PREMO, Wayne R.2 and CHAMBERLAIN, Kevin1, (1)Dept. of Geology and Geophysics, Univ. of Wyoming, Laramie, WY 82071, (2)U.S. Geol Survey, MS 980, P.O. Box 25046, Denver Federal Center, Denver, CO 80225, dsjones@uwyo.edu, dsjones@uwyo.edu
13
11:30 AM
Major, Minor, and Trace Element Composition of Clinopyroxene Grains from Southern California Mantle Determined Using LA-ICP-MS and SHRIMP-RG Geochemical Analysis
HUGHES, Kristin L.H., Geological Sciences, University of Alabama, 201 7th Ave, Tuscaloosa, AL 35487, MAZDAB, Frank K., USGS-Stanford Ion Microprobe Facility, Green Building, Rm 89, Stanford, CA 94305, BARTH, Andrew P., Earth Sciences, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202 and WOODEN, Joseph L., USGS-Stanford Ion Microprobe Laboratory, Stanford University, Stanford, CA 94305, klhughes@bama.ua.edu, klhughes@bama.ua.edu
14
11:45 AM
Geochemical and Isotopic Evidence for Paleoproterozoic Recycling of Archean Crust and Mantle Lithosphere along the SW Laurentian Margin
STROUD, Misty, Department of Geological Sciences, University of Florida, Gainesville, FL 32611-2120, MUELLER, Paul A., Department of Geological Sciences, University of Florida, 241 Williamson Hall, Gainesville, FL 32601, FOSTER, David, Department of Geology, University of Florida, Gainesville, FL 32611, KAMENOV, George, Department of Geological Sciences, University of Florida, 241 Williamson Hall, Gainesville, FL 32611, MOGK, David, Earth Sciences, Montana State University, 200 Traphagen Hall, Bozeman, MT 59717 and WOODEN, Joe, USGS-Stanford Ion Microprobe Laboratory, Stanford University, Stanford, CA 94305, stroud@ufl.edu, stroud@ufl.edu
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