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
Grand Ballroom (Riverwoods Conference Center)

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

Authors will be present from 4 to 6 PM.

 

Paper #
Booth #
1
17
GRAIN-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, Las Vegas, NV 89154-4010 and KOPIETZ, Chris, Department of Geoscience, University of Nevada Las Vegas, 4505 S. Maryland Parkway, MS 4010, Las Vegas, NV 89154, rod.metcalf@unlv.edu, rod.metcalf@unlv.edu
2
18
A 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 and MOORE, James G., US Geol Survey, 345 Middlefield Rd, Menlo Park, CA 94025-3561, msawlan@usgs.gov, msawlan@usgs.gov
3
19
COMPOSITIONAL VARIATIONS IN HYDROTHERMAL WHITE MICAS AND CHLORITES IN A PORPHYRY CU SYSTEM AT YERINGTON, NV
COHEN, Julia, Dept. of Geoscience, Oregon State University, 104 Wilkinson Hall, Corvallis, OR 97330, DILLES, John H., College of Earth, Ocean & Atmospheric Sciences, Oregon State University, CEOAS Admin 104, Corvallis, OR 97331-5503, TOSDAL, Richard M., Mineral Deposit Research Unit, University of British Columbia, Vancouver, BC V6T1Z4, Canada and HALLEY, Scott, Mineral Mapping, 24 Webb Street, Rossmoyne, Western Australia, 6148, Australia, cohenju@geo.oregonstate.edu, cohenju@geo.oregonstate.edu
4
20
DOCUMENTING 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, (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, huntr@cwu.edu, huntr@cwu.edu
5
21
CRUSTAL 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, (2)Dipartmento di Scienze Geologiche, Università degli di Catania, Corso Italia, 57, Catania, I-95129, Italy, pitcherb@cwu.edu, pitcherb@cwu.edu
6
22
LARGE-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, (2)Idaho Geological Survey, University of Idaho, 875 Perimeter Dr MS 3014, 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, embreeg@byui.edu, embreeg@byui.edu
7
23
ROCK 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, 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, CCIS 4-183, University of Alberta, Edmonton, AB T6G 2E1, Canada, james.kessler@aggiemail.usu.edu, james.kessler@aggiemail.usu.edu
8
24
GEOCHEMISTRY 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, swarner640@gmail.com
9
25
PROCESSES 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 and SCHMITZ, M.D., Department of Geosciences, Boise State University, Boise, ID 83725, melissahill1@u.boisestate.edu, melissahill1@u.boisestate.edu
10
26
11
27
FLUORINE 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, Brian.Edward.Turner@asu.edu
12
28
VOLCANOLOGY 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, KENT, Adam J.R., College of Earth, Ocean & Atmospheric Sciences, Oregon State University, 104 Ocean Admin, 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, salisbum@science.osu.edu, salisbum@science.osu.edu
13
29
MIDDLE 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, 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, torozco@geociencias.unam.mx, torozco@geociencias.unam.mx
14
30
ON 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, jjag@servidor.unam.mx
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