Rocky Mountain (63rd Annual) and Cordilleran (107th Annual) Joint Meeting (18–20 May 2011)
Session No. 19 Thursday, 19 May 2011
8:00 AM-6:00 PM, Riverwoods Conference Center: Grand Ballroom

T8. Geochemistry of Igneous Rocks: From Small Scales to Big Pictures (Posters)

Authors will be present from 4 to 6 PM
 Paper #Booth #
19-117GRAIN-SCALE MELT PSEUDOMORPH MICROSTRUCTURES FROM THE PYROMETAMORPHIC AUREOLE OF THE MIOCENE MOUNT PERKINS PLUTON: A POTENTIAL LINK TO OPEN SYSTEM PROCESSES DURING PLUTON CRYSTALLIZATION: METCALF, Rodney V., Department of Geoscience, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, MS 4010, Las Vegas, NV 89154-4010, rod.metcalf@unlv.edu and KOPIETZ, Chris, Department of Geoscience, University of Nevada Las Vegas, 4505 S. Maryland Parkway, MS 4010, Las Vegas, NV 89154
19-218A CHILLING OBSERVATION: SUBVERTICAL QUENCH FRACTURES ARE WIDESPREAD IN LAVAS OF THE COLUMBIA RIVER BASALT GROUP: SAWLAN, M.G., U.S. Geological Survey, 345 Middlefield Road, Menlo Park, CA 94025, msawlan@usgs.gov and MOORE, James G., US Geol Survey, 345 Middlefield Rd, Menlo Park, CA 94025-3561
19-319COMPOSITIONAL VARIATIONS IN HYDROTHERMAL WHITE MICAS AND CHLORITES IN A PORPHYRY CU SYSTEM AT YERINGTON, NV: COHEN, Julia1, DILLES, John H.2, TOSDAL, Richard M.3, and HALLEY, Scott3, (1) Dept. of Geoscience, Oregon State University, 104 Wilkinson Hall, Corvallis, OR 97330, cohenju@geo.oregonstate.edu, (2) Geosciences, Oregon State University, Wilkinson Hall 104, Corvallis, OR 97331-5506, (3) Mineral Deposit Research Unit, University of British Columbia, Vancouver, BC V6T1Z4, Canada
19-420DOCUMENTING THE ORIGIN OF COMPOSITIONAL DIVERSITY OF SUBDUCTION ZONE MAGMATISM, ALICUDI, AEOLIAN ARC (SOUTHERN TYRRHENIAN SEA, ITALY) USING IN SITU PLAGIOCLASE DATA: HUNT, Rachel M.1, BOHRSON, Wendy A.2, MAYFIELD, Aaron1, and CREAMER, Jeff3, (1) Geological Sciences, Central Washington University, 400 E University Way, Ellensburg, WA 98926, huntr@cwu.edu, (2) Department of Geological Sciences, Central Washington University, 400 E. University Way, Ellensburg, WA 98926, (3) Geological Sciences, University of California at Santa Barbara, 1006 Web Hall, Santa Barbara, Santa Barbara, CA 93106-9630
19-521CRUSTAL ASSIMILATION IN THE RECENT MT. ETNA MAGMA PLUMBING SYSTEM: EVIDENCE FROM IN SITU PLAGIOCLASE TEXTURAL AND COMPOSITIONAL DATA: PITCHER, Brad1, BOHRSON, Wendy A.1, and VICCARO, Marco2, (1) Department of Geological Sciences, Central Washington University, 400 E. University Way, Ellensburg, WA 98926, pitcherb@cwu.edu, (2) Dipartmento di Scienze Geologiche, Università degli di Catania, Corso Italia, 57, Catania, I-95129, Italy
19-622LARGE-SCALE RHEOMORPHIC STRUCTURES AND BASALT STRATIGRAPHY OF THE NEWDALE AND LINDERMAN DAM 7.5-MINUTE QUADRANGLES, EASTERN SNAKE RIVER PLAIN, IDAHO: EMBREE, Glenn F.1, PHILLIPS, William M.2, CHAMPION, Duane E.3, MOORE, Dan K.1, JORDAN, Benjamin R.1, and GEISSMAN, J.W.4, (1) Department of Geology, Brigham Young University-Idaho, Rexburg, ID 83460, embreeg@byui.edu, (2) Idaho Geological Survey, University of Idaho, PO Box 443014, Moscow, ID 83844-3014, (3) U.S. Geol Survey, MS-910, 345 Middlefield Rd, Menlo Park, CA 94025, (4) Department of Geosciences, University of Texas at Dallas, 800 West Campbell Road, Richardson, TX 75080
19-723ROCK PROPERTY DESCRIPTIONS INTERPRETED FROM BOREHOLE GEOPHYSICAL DATA COLLECTED IN SLIMHOLES DRILLED FOR PROJECT HOTSPOT: THE SNAKE RIVER GEOTHERMAL DRILLING PROJECT: KESSLER, James A., Dept of Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322, james.kessler@aggiemail.usu.edu, EVANS, James P., Dept. of Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322-4505, and SCHMITT, Douglas R., Physics, University of Alberta, Edmonton, AB T6G 2G7, Canada
19-824GEOCHEMISTRY AND PETROGENESIS OF MID-MIOCENE VOLCANOES FROM THE ANCESTRAL CASCADES OF NORTHEASTERN CALIFORNIA: WARNER, Steven J. and CAMP, Victor E., Geological Sciences, San Diego State Univ, 5500 Campanile Dr, San Diego, CA 92182-1020, swarner640@gmail.com
19-925PROCESSES OF MAGMA EVOLUTION AND CRYSTAL RECYCLING RECORDED IN ZIRCON POPULATIONS OF LARGE VOLUME RHYOLITES IN THE WESTERN MOUNT BENNETT HILLS, CENTRAL SNAKE RIVER PLAIN, IDAHO, AND THE IMPLICATIONS FOR CONSTRAINING THE PRE- AND SYN-ERUPTIVE EVOLUTION OF SILICIC MAGMAS: HILL, Melissa, Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725, melissahill1@u.boisestate.edu and SCHMITZ, Mark D., Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725
19-1026CONSTRAINING EMPLACEMENT TEMPERATURE OF VOLCANIC DEPOSITS USING THERMOVISCOUS MAGNETIZATION BEHAVIOR: INITIAL RESULTS FROM THE 8.7 KA BOULDER CREEK ASSEMBLAGE, MT. BAKER, WASHINGTON: FUSSO, Logan A., Geology, Western Washington University, 516 High St, Bellingham, WA 98225, fussol@students.wwu.edu
19-1127FLUORINE VARIATIONS IN IGNEOUS PHENOCRYSTS FROM CONTINENTAL MAGMAS: TURNER, Brian E., BELL, David R., HERVIG, Richard L., and BUSECK, Peter R., School of Earth and Space Exploration, Arizona State University, PO Box 871404, Tempe, AZ 85287-1404, Brian.Edward.Turner@asu.edu
19-1228VOLCANOLOGY AND PETROLOGY OF AN ENIGMATIC BACKARC VOLCANO ON THE BOLIVIAN ALTIPLANO: IMPLICATIONS FOR NON-SUBDUCTION RELATED VOLCANISM: SALISBURY, Morgan, Department of Geosciences, Oregon State University, Wilkinson Hall 104, Corvallis, OR 97331, salisbum@science.osu.edu, KENT, Adam J.R., Department of Geosciences, Oregon State University, 104 Wilkinson Hall, Corvallis, OR 97331, JIMENEZ, Nestor, Facultad de Geologia, Universidad Mayor de San Andres, La Paz, Bolivia, and JICHA, Brian R., Geoscience, University of Wisconsin-Madison, Madison, WI 53706
19-1329MIDDLE TO LATE MIOCENE SLAB FLATTENING AND ARC MIGRATION IN THE EARLY TRANS-MEXICAN VOLCANIC BELT: OROZCO ESQUIVEL, Teresa, Centro de Geociencias, Universidad Nacional Autonoma de Mexico, Blvd Juriquilla 3001, Juriquilla, Queretaro, 76230, Mexico, torozco@geociencias.unam.mx, FERRARI, Luca, Centro de Geociencias, Universidad Nacional Autonoma de Mexico, Campus Juriquilla, Blvd. Juriquilla 3001, Queretaro, 76230, Mexico, and LÓPEZ-MARTÍNEZ, Margarita, Geology Department, Earth Sciences Division, CICESE, Km. 107 carr. Tijuana-Ensenada, Ensenada, B.C, 22860, Mexico
19-1430ON THE INFLUENCE OF BASEMENT STRUCTURES ON THE LOCATION OF SOME INTRAPLATE-TYPE VOLCANIC FIELDS IN CENTRAL AND NORTHERN MEXICO: ARANDA-GÓMEZ, José Jorge, Centro de Geociencias, Universidad Nacional Autónoma de México, Campus Juriquilla, Querétaro 76230 Mexico, jjag@servidor.unam.mx

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