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

Session No. 3
Wednesday, 18 May 2011: 8:00 AM-12:00 PM
Juniper (Riverwoods Conference Center)

T7. Petrologic and Geodynamic Perspectives on Non-Arc Volcanism in the Western United States

 

J.W. Shervais and Anthony R. Lowry, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
1
8:05 AM
DISTINGUISHING ARC AND NON-ARC MAGMATISM VIA HOTSPOTTING?
PILGER, Rex, GeoGraphix, 1805 Shea Center Drive, Suite 400, Highlands Ranch, CO 80129, rexpilger@yahoo.com, rexpilger@yahoo.com
2
8:25 AM
THE WALLOWA BATHOLITH: NEW PB/U (SHRIMP-RG) AGES PLACE CONSTRAINTS ON ARC MAGMATISM AND CRUSTAL THICKENING IN THE BLUE MOUNTAINS PROVINCE, NE OREGON
JOHNSON, Kenneth, Department of Natural Sciences, University of Houston-Downtown, 1 Main Street, Suite N813, Houston, TX 77002, SCHWARTZ, Joshua J., Department of Geological Sciences, University of Alabama, Box 870338, Tuscaloosa, AL 35487, WOODEN, Joseph L., USGS-Stanford Ion Microprobe Laboratory, Stanford University, Stanford, CA 94305, O'DRISCOLL, Leland J., Earth Sciences, University of Southern California, Los Angeles, CA 90089 and JEFFCOAT, C. Ryan, Department of Earth and Atmospheric, University of Houston, 312 Science and Research Building 1, Houston, TX 77204-5007, johnsonk@uhd.edu, johnsonk@uhd.edu
3
8:45 AM
COMPOSITIONAL TRENDS IN HIGH LAVA PLAINS AND NORTHWEST BASIN AND RANGE RHYOLITES, COMPARISON TO SNAKE RIVER PLAIN, CASCADES AND ICELAND: PARTIAL MELT, FRACTIONATION, OR BOTH?
FORD, Mark T. and GRUNDER, Anita L., Geosciences, Oregon State University, 104 Wilkinson Hall, Corvallis, OR 97331, fordm@geo.oregonstate.edu, fordm@geo.oregonstate.edu
4
9:05 AM
THE HAMPTON TUFF, EASTERN OREGON: EVIDENCE FOR WESTWARD AND TEMPORAL DECLINE IN RHYOLITIC ACTIVITY ON THE HIGH LAVA PLAINS
TUCKER, Kera B., Geosciences, Oregon State University, Corvallis, OR 97330, IADEMARCO, Michael J., Geosciences, Oregon State University, Corvallis, OR 97331 and GRUNDER, Anita L., Geosciences, Oregon State University, 104 Wilkinson Hall, Corvallis, OR 97331, tuckeker@onid.orst.edu, tuckeker@onid.orst.edu
5
9:25 AM
THE DINNER CREEK TUFF AND OTHER MID-MIOCENE RHYOLITES AT THE MAGMATIC FOCAL ZONE OF THE COLUMBIA RIVER BASALT GROUP
STRECK, Martin J.1, FERNS, Mark L.2, RICKER, Christopher1 and STEINER, Arron1, (1)Department of Geology, Portland State University, Portland, OR 97207, (2)Science Department, Eastern Oregon University, La Grande, OR 97850, streckm@pdx.edu, streckm@pdx.edu
 
9:45 AM
Break
6
10:00 AM
PROJECT HOTSPOT – THE SNAKE RIVER SCIENTIFIC DRILLING PROJECT: A PROGRESS REPORT
SHERVAIS, John1, EVANS, James P.1, LACHMAR, Thomas E.1, CHRISTIANSEN, Eric J.2, SCHMITT, Douglas R.3, KESSLER, James E.1, POTTER, Katherine E.1, JEAN, Marlon M.4, SANT, Christopher J.1 and FREEMAN, Thomas G.1, (1)Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322-4505, (2)Geological Sciences, Brigham Young University, Provo, UT 84602, (3)Physics, University of Alberta, CCIS 4-183, University of Alberta, Edmonton, AB T6G 2E1, Canada, (4)Geology and Environmental Sciences, Northern Illinois University, Davis Hall 312, Normal Rd, DeKalb, IL 60115, john.shervais@usu.edu, john.shervais@usu.edu
7
10:20 AM
PROJECT HOTSPOT: INSIGHT INTO THE SUBSURFACE STRATIGRAPHY AND PETROLOGIC EVOLUTION OF THE SNAKE RIVER PLAIN
POTTER, Katherine E.1, SHERVAIS, John2, SANT, Christopher J.1 and CHRISTIANSEN, Eric H.3, (1)Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322-4505, (2)Utah State University, 4505 Old Main Hill, Logan, UT 84322, (3)Department of Geological Sciences, Brigham Young University, Provo, UT 84602, kepotter126@aggiemail.usu.edu, kepotter126@aggiemail.usu.edu
8
10:40 AM
COMPOSITION AND HISTORY OF THE BASALTS OF THE ISLAND PARK AREA, ID
MOORE, Dan K.1, KUNTZ, Mel A.2, SHENTON, Brock1 and MCGUIRE, Kevin3, (1)Department of Geology, Brigham Young University-Idaho, Rexburg, ID 83460, (2)U.S. Geological Survey, Box 20546, Denver, CO 80225, (3)Geology, Brigham Young University-Idaho, Rexburg, ID 83460-0510, moored@byui.edu, moored@byui.edu
9
11:00 AM
VOLCANIC STRATIGRAPHY OF THE NORTHWESTERN SIERRA BLANCA VOLCANIC FIELD, SOUTH-CENTRAL NEW MEXICO
KELLEY, Shari A., New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, Socorro, NM 87801, KONING, Daniel J., New Mexico Bureau of Geology and Mineral Resources, New Mexico Institution of Mining and Technology, 801 Leroy Place, Socorro, NM 87801, GOFF, Fraser, Earth and Planetary Sciences Dept, University of New Mexico, Albuquerque, NM 87131, KEMPTER, Kirt A., 2623 Via Caballero del Norte, Santa Fe, NM 87505 and PETERS, Lisa, New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801, sakelley@ix.netcom.com, sakelley@ix.netcom.com
10
11:20 AM
CONSTRUCTION AND WIDENING MECHANISMS OF PYROCLASTIC DIKE COMPLEXES IN THE EOCENE GOLETA CALDERA, SOUTHERN MEXICO
MORÁN ZENTENO, Dante J., Instituto de Geología, Universidad Nacional Autónoma de México, Ciudad Universitaria Delegación Coyoacán, Mexico D.F, 04510, Mexico, dantez@servidor.unam.mx, dantez@servidor.unam.mx
11
11:40 AM
MODELING THE GROWTH OF A COMPOSITE FELSIC INTRUSION: INSIGHTS FROM AN ONGOING STUDY OF THE MOUNT WHITNEY INTRUSIVE SUITE, SIERRA NEVADA, CALIFORNIA
HIRT, William H., Biological and Physical Sciences, College of the Siskiyous, 800 College Avenue, Weed, CA 96094 and HATTON, James R., Mathematics, Southern Oregon University, 1250 Siskiyou Blvd, Ashland, OR 97250, hirt@siskiyous.edu, hirt@siskiyous.edu
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