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Rocky Mountain (56th Annual) and Cordilleran (100th Annual) Joint Meeting (May 3–5, 2004)

Session No. 22
Tuesday, 4 May 2004: 8:15 AM-12:00 PM

T1. Cordilleran Magmatism from the Forearc to the Hinterland I

 

Calvin Barnes, Aaron S. Yoshinobu and Keegan L. Schmidt, Advocates
Paper #
Start Time
 
8:15 AM
Introductory Remarks
1
8:20 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, metcalfr@unlv.nevada.edu
2
8:40 AM
THE MIDDLE JURASSIC IRONSIDE MOUNTAIN BATHOLITH: POTASSIC MAGMAS IN A PRIMITIVE ARC SETTING
BARNES, Calvin, Geosciences, Texas Tech, Lubbock, TX 79409-1053, FROST, Carol, Department of Geology and Geophysics, Univ. of Wyoming, Dept. 3006, 1000 University Ave, Laramie, WY 82071 and SWAPP, Susan, Dept. of Geology and Geophysics, Univ. of Wyoming, Laramie, WY 82071-3006, Cal.Barnes@ttu.edu, Cal.Barnes@ttu.edu
3
9:00 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, (2)Geosciences, Texas Tech Univ, Lubbock, TX 79409-1053, snoke@uwyo.edu, snoke@uwyo.edu
4
9:20 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, 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, rory@uwyo.edu, rory@uwyo.edu
5
9:40 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, hirt@siskiyous.edu
 
10:00 AM
Break
6
10:20 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, 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, meschmcd@email.unc.edu, meschmcd@email.unc.edu
7
10:40 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, 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, khoward@usgs.gov, khoward@usgs.gov
8
11:00 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, 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, snoke@uwyo.edu, snoke@uwyo.edu
9
11:20 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, 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, rmiller@geosun.sjsu.edu, rmiller@geosun.sjsu.edu
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