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Rocky Mountain (63rd Annual) and Cordilleran (107th Annual) Joint Meeting (18–20 May 2011)

Session No. 26
Friday, 20 May 2011: 8:00 AM-1:00 PM
Cottonwood (Riverwoods Conference Center)

T3. Deep Crustal Perspectives on Cordilleran Orogenesis

 

Christopher G. Mattinson and Thomas D. Hoisch, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
1
8:05 AM
U-PB ZIRCON GEOCHRONOLOGY AND HF ISOTOPE GEOCHEMISTRY OF THE MOUNTAIN HOME METAMORPHIC COMPLEX, BLUE MOUNTAINS PROVINCE, NORTHEASTERN OREGON
ANDERSON, Bryan Scott1, SCHWARTZ, Joshua J.1, JOHNSON, Kenneth2, WOODEN, Joseph L.3 and MUELLER, Paul A.4, (1)Department of Geological Sciences, University of Alabama, Box 870338, Tuscaloosa, AL 35487, (2)Department of Natural Sciences, University of Houston-Downtown, 1 Main Street, Suite N813, Houston, TX 77002, (3)USGS-Stanford Ion Microprobe Laboratory, Stanford University, Stanford, CA 94305, (4)Department of Geological Sciences, University of Florida, 241 Williamson Hall, Gainesville, FL 32611-2120, bsanderson@crimson.ua.edu, bsanderson@crimson.ua.edu
2
8:25 AM
P-T-T PATHS FROM THE SALMON RIVER SUTURE ZONE, WEST-CENTRAL IDAHO: CONTINENTAL GROWTH BY ISLAND ARC ACCRETION
MCKAY, Matthew P., Department of Geology and Geography, West Virginia University, 98 Beechurst Ave, 330 Brooks Hall, Morgantown, WV 26506, STOWELL, Harold H., Department of Geological Sciences, University of Alabama, BOX 870338, Tuscaloosa, AL 35487 and SCHWARTZ, Joshua J., Department of Geological Sciences, University of Alabama, Box 870338, Tuscaloosa, AL 35487, mmckay1@mix.wvu.edu, mmckay1@mix.wvu.edu
3
8:45 AM
A WINDOW INTO THE MIDDLE CRUST OF THE NORTHERN U.S. CORDILLERA AT HOUSE MOUNTAIN, SOUTHERN IDAHO BATHOLITH
SCHMITZ, M.D., Department of Geosciences, Boise State University, Boise, ID 83725, markschmitz@boisestate.edu, markschmitz@boisestate.edu
4
9:05 AM
U-PB ZIRCON GEOCHRONOLOGY OF META-ANORTHOSITES IN THE BITTERROOT RANGE, WESTERN MONTANA: IMPLICATIONS FOR METAMORPHISM AND ANATEXIS DURING CORE COMPLEX FORMATION
BALDWIN, Julia A.1, GRAHAM, Amity1 and DESORMEAU, Joel W.2, (1)Department of Geosciences, University of Montana, Missoula, MT 59812, (2)Geological Sciences, University of Nevada, Reno, NV 89557, jbaldwin@mso.umt.edu, jbaldwin@mso.umt.edu
5
9:25 AM
AN UPDATED N-SHAPED PRESSURE-TEMPERATURE-TIME PATH FROM THE GROUSE CREEK MOUNTAINS, UTAH: AN EXAMPLE OF AN OROGENIC CYCLE
HOISCH, Thomas D., School of Earth Sciences and Environmental Sustainability, Northern Arizona University, Flagstaff, AZ 86011 and WELLS, Michael L., Dept. of Geoscience, Univ of Nevada, Las Vegas, 4505 South Maryland Parkway, Las Vegas, NV 89154-4010, Thomas.Hoisch@nau.edu, Thomas.Hoisch@nau.edu
 
9:45 AM
Break
6
10:15 AM
INTRUSION, CRUSTAL THICKENING, AND RAPID GARNET GROWTH, NORTH CASCADES WASHINGTON
STOWELL, Harold H., Department of Geological Sciences, Univ of Alabama, Box 870338, Tuscaloosa, AL 35487-0338, hstowell@as.ua.edu, hstowell@as.ua.edu
7
10:35 AM
EVIDENCE FOR SUB-HORIZONTAL FLUID FLOW DURING PROGRADE METAMORPHSIM IN THE NORTH CASCADES CRYSTALLINE CORE
PONSHOCK, Perry M., Geology Department, Western Washington University, 516 High St, Bellingham, WA 98225 and HIRSCH, David M., Geology, Western Washington University, 516 High St, Bellingham, WA 98225, ponshop@students.wwu.edu, ponshop@students.wwu.edu
8
10:55 AM
THERMOBAROMETRIC CONSTRAINTS ON THE CHELAN MIGMATITE COMPLEX, NORTH CASCADES, WASHINGTON
MATTINSON, Christopher G., Geological Sciences, Central Washington University, 400 E University Way, MS 7418, Ellensburg, WA 98926, mattinson@geology.cwu.edu, mattinson@geology.cwu.edu
9
11:15 AM
DETERMINING GARNET GROWTH RATES FROM STRONTIUM ISOTOPE ZONING
SOUSA, Jessica L.1, KOHN, Matthew J.1, SCHMITZ, M.D.2, SPEAR, Frank S.3 and NORTHRUP, Clyde J.1, (1)Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725, (2)Department of Geosciences, Boise State University, Boise, ID 83725, (3)Earth and Environmental Sciences, Rensselaer Polytechnic Institute, Troy, NY 12180, jessicasousa1@u.boisestate.edu, jessicasousa1@u.boisestate.edu
10
11:35 AM
DEEP OROGENIC PROCESSES CONSTRAINED BY PRESSURE AND TEMPERATURE ESTIMATES OF HIGH-PRESSURE GRANULITES
CHRISTENSEN, Benjamin D.J., Geological Sciences, Central Washington University, Ellensburg, WA 98926 and MATTINSON, Christopher G., Geological Sciences, Central Washington University, 400 E University Way, MS 7418, Ellensburg, WA 98926, christeb@cwu.edu, christeb@cwu.edu
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