Rocky Mountain (56th Annual) and Cordilleran (100th Annual) Joint Meeting (May 35, 2004)
Session No. 22 Tuesday, May 4, 2004
8:15 AM-12:00 PM, Boise Centre on the Grove: Payette-Snake Rivers

T1. Cordilleran Magmatism from the Forearc to the Hinterland I

Calvin Barnes, Aaron S. Yoshinobu and Keegan L. Schmidt, Presiding
 Paper #Start Time
 8:15 AM Introductory Remarks
22-18:20 AM EVOLUTION AND SUBDUCTION POLARITY OF THE MID-PALEOZOIC KLAMATH-SIERRA VOLCANIC ARC: METCALF, Rodney V., Geoscience Department, Univ of Nevada, Las Vegas, 4505 Maryland Pkwy, Box 4010, Las Vegas, NV 89154, metcalfr@unlv.nevada.edu.
22-28:40 AM THE MIDDLE JURASSIC IRONSIDE MOUNTAIN BATHOLITH: POTASSIC MAGMAS IN A PRIMITIVE ARC SETTING: BARNES, Calvin1, FROST, Carol2, and SWAPP, Susan2, (1) Geosciences, Texas Tech, Lubbock, TX 79409-1053, Cal.Barnes@ttu.edu, (2) Dept. of Geology and Geophysics, Univ. of Wyoming, Laramie, WY 82071-3006
22-39:00 AM EVOLUTION OF AN OCEANIC-ARC PLUTONIC SUITE: BEAR MOUNTAIN INTRUSIVE COMPLEX, KLAMATH MOUNTAINS, CALIFORNIA: BUSHEY, Jonathan C.1, SNOKE, Arthur W.1, and BARNES, Calvin G.2, (1) Geology and Geophysics, Univ of Wyoming, 1000 E. University Avenue, Laramie, WY 82071, snoke@uwyo.edu, (2) Geosciences, Texas Tech Univ, Lubbock, TX 79409-1053
22-49:20 AM BEAR PEAK INTRUSIVE COMPLEX, KLAMATH MOUNTAINS, CALIFORNIA: EVOLUTION OF AN ULTRAMAFIC TO SILICIC PLUTONIC SUITE THROUGH CRYSTAL ACCUMULATION, WALL-ROCK ASSIMILATION, AND MULTIPLE MAGMAS: MCFADDEN, Rory R., Geology and Geophysics, Univ of Wyoming, 1000 E. University Avenue, University of Wyoming, Laramie, WY 82071, rory@uwyo.edu, SNOKE, Arthur W., Geology and Geophysics, Univ of Wyoming, 1000 E. University Avenue, Laramie, WY 82071, and BARNES, Calvin G., Geosciences, Texas Tech Univ, Lubbock, TX 79409-1053
22-59:40 AM THERMAL MODELING OF A COMPOSITE FELSIC INTRUSION: IMPLICATIONS FOR THE ORIGIN OF COMPOSITIONAL ZONING WITHIN MEMBERS OF THE MOUNT WHITNEY INTRUSIVE SUITE, SIERRA NEVADA, CALIFORNIA: HIRT, William H. and HATTON, James R., Division of Natural and Applied Sciences, College of the Siskiyous, 800 College Avenue, Weed, CA 96094, hirt@siskiyous.edu
 10:00 AM Break
22-610:20 AM DEVELOPMENT OF THE MINERAL MOUNTAINS SHEET COMPLEX, MINERAL MOUNTAINS BATHOLITH, SOUTHWESTERN UTAH: MESCHTER MCDOWELL, Susanne M., Geological Sciences, Univ of North Carolina-Chapel Hill, Campus Box #3315, Mitchell Hall, Room 107, Chapel Hill, NC 27599, meschmcd@email.unc.edu, COLEMAN, Drew S., Department of Geological Sciences, Univ of North Carolina, CB# 3315, Chapel Hill, NC 27599, and GEISSMAN, John W., Department of Earth and Planetary Sciences, Univ of New Mexico, Northrop Hall, Albuquerque, NM 87131
22-710:40 AM STYLE OF INTRUSION OF CRUSTAL MELTS INTO MIDDLE CRUST IN THE CRETACEOUS BACK-ARC: RUBY MOUNTAINS CORE COMPLEX, NEVADA: HOWARD, K.A., U.S. Geol Survey, 345 Middlefield Road, MS 975, Menlo Park, CA 94025, khoward@usgs.gov, BARNES, C.G., Geosciences, Texas Tech Univ, Lubbock, TX 79409-1053, SNOKE, A.W., Dept. Geology and Geophysics, Univ of Wyoming, Laramie, WY 82071, WRIGHT, J.E., Department of Geology, Univ of Georgia, Athens, GA 30602, and LEE, S-Y., Geosciences, Texas Tech Univ, Lubbock, TX 79409
22-811:00 AM LATE EOCENE AND OLIGOCENE INTRUSIONS IN THE RUBY-EAST HUMBOLDT CORE COMPLEX, NEVADA: MAGMATIC PROCESSES IN THE MIDDLE CRUST IN RELATION TO TECTONIC EXTENSION: SNOKE, Arthur W., Geology and Geophysics, Univ of Wyoming, 1000 E. University Avenue, Laramie, WY 82071, snoke@uwyo.edu, BARNES, Calvin G., Geosciences, Texas Tech Univ, Lubbock, TX 79409-1053, HOWARD, Keith A., U. S. Geol Survey, 345 Middlefield Road, MS 975, Menlo Park, CA 94025, WRIGHT, James E., Geology, Univ of Georgia, Athens, GA 30602, and COPELAND, Peter, Geoscience, Univ of Houston, Houston, TX 77204-5503
22-911:20 AM TECTONIC SIGNIFICANCE OF SHEETED PLUTONS IN THE WESTERN CORDILLERA: EVIDENCE FROM THE NORTH CASCADES, WASHINGTON: MILLER, Robert B., Dept. of Geology, San Jose State Univ, San Jose, CA 95192-0102, rmiller@geosun.sjsu.edu, PATERSON, Scott R., Department of Earth Sciences, Univ of Southern California, Los Angeles, CA 90089-0740, and MATZEL, Jennifer P., Dept. of EAPS, MIT, Cambridge, MA 02139

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