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

Oral Session
Topical Sessions

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Thursday, 9 October 2008: 8:00 AM-12:00 PM
George R. Brown Convention Center, 332AD

Presiding:
Alan Levander , Cin-Ty Lee , Adrian Lenardic and Fenglin Niu
8:00 AM
341-1
Upper Mantle P-Wave Tomography beneath the Western United States from USArray and Global Data
Scott Burdick, Massachusetts Institute of Technology; Robert D. van der Hilst, Massachusetts Institute of Technology; Frank L. Vernon, University of California San Diego; Gary L. Pavlis, Indiana University
8:20 AM
341-2
Origin of Miocene Volcanism near the Coast In Central and Southern California, Revisited
Paterno R. Castillo, University of California, San Diego
8:35 AM
341-3
The Ignimbrite Flareup, Flood Basalts and the Yellowstone Hotspot: How Subducting Slab Controlled Pacific Northwest Backarc Magmatism
Eugene D. Humphreys, University of Oregon
8:55 AM
341-4
Lithosperic Evolution of the North American Cordilleran Interior during the Cenozoic – Lessons from Arizona
Mihai N. Ducea, University of Arizona
9:15 AM
341-5
Late Jurassic Igneous Rocks in South-Arizona and North-Central Sonora: Magmatic Record of Crustal Extension
Gordon B. Haxel, US Geol Survey; Thomas H. Anderson, University of Pittsburgh
9:30 AM
341-6
Late Cenozoic Mantle Upwelling at the Western and Southern Margins of the Colorado Plateau?
W. Scott Baldridge, Los Alamos National Laboratory; Jolante van Wijk, Los Alamos National Laboratory; Richard Aster, New Mexico Institute of Mining and Technology; David Coblentz, Los Alamos National Laboratory; Stephen Grand, University of Texas at Austin; James Ni, New Mexico State University; Jeroen van Hunen, Durham University
9:45 AM
341-7
Geochemical Evidence for a Dense Mafic Root of Units In the Wallowa Batholith, Wallowa Mountains, Northeast Oregon
Leland J. O'Driscoll, University of Oregon; Kenneth Johnson, University of Houston-Downtown
10:00 AM
Break
10:15 AM
341-8
Estimates of Permanent Strain Rates In the Western US
Robert McCaffrey, Rensselaer Polytechnic Institute; Robert W. King, Massachusetts Institute of Technology; Suzette J. Payne, Idaho National Laboratory
10:30 AM
341-9
Effect of Radioactivity Decay and Erosion on Surface Heat Flow- Heat Production Time Plots
Mahesh Thakur, Southern Methodist Univeristy; David D. Blackwell, Southern Methodist Univeristy
10:45 AM
341-10
Cenozoic Evolution of the Thermal Regime of the Continental Mantle in Western USA: A Comparative Study Constrained by Petrologic Data
Irina M. Artemieva, Copenhagen University
11:00 AM
341-11
New Observations on the Extent of Cambrian Rifting In Colorado: An Update
Jessica Pardo, University of Oklahoma; G. Randy Keller, University of Oklahoma; Stephen Holloway, University of Oklahoma
11:15 AM
341-12
A Refined Interpretation of the Medicine Bow Orogeny, Southeastern Wyoming: Accretion, Delamination, and Collision
Daniel S. Jones, Univ. of Wyoming; Arthur Snoke, Univ. of Wyoming; Wayne Premo, U.S. Geol Survey; Kevin Chamberlain, Univ. of Wyoming
11:30 AM
341-13
Major, Minor, and Trace Element Composition of Clinopyroxene Grains from Southern California Mantle Determined Using LA-ICP-MS and SHRIMP-RG Geochemical Analysis
Kristin L.H. Hughes, University of Alabama; Frank K. Mazdab, USGS-Stanford Ion Microprobe Facility; Andrew P. Barth, Indiana University-Purdue University Indianapolis; Joseph L. Wooden, USGS-Stanford Ion Microprobe Laboratory, Stanford University
11:45 AM
341-14
Geochemical and Isotopic Evidence for Paleoproterozoic Recycling of Archean Crust and Mantle Lithosphere along the SW Laurentian Margin
Misty Stroud, University of Florida; Paul Mueller, University of Florida; David Foster, Univ of Florida; George Kamenov, University of Florida; David Mogk, Montana State University; Joe Wooden, Stanford University
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