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Rocky Mountain Section - 68th Annual Meeting - 2016

Session No. 3
Wednesday, 18 May 2016: 8:00 AM-12:00 PM
Classroom 029 (Teaching and Learning Center)

T13. Cenozoic Volcanism in the Inland Northwestern United States

 

John A. Wolff, Scott Boroughs, Jesse G. Mosolf and Bill Bonnichsen, Advocates
Paper #
Start Time
3-1
8:00 AM
40AR/39AR AGES ON INTERCALATED SILICIC TUFFS PROVIDE PRECISE AGES FOR STEENS BASALT LAVAS: IMPLICATIONS FOR FLOOD BASALT EFFUSION RATES, RELATION TO MIOCENE CLIMATIC OPTIMUM, AND THE AGE OF THE STEENS GEOMAGNETIC REVERSAL
MAHOOD, Gail A. and BENSON, Thomas R., Department of Geological Sciences, Stanford University, Bldg 320, 450 Serra Mall, Stanford, CA 94305-2115, mahood@stanford.edu, mahood@stanford.edu
3-2
8:20 AM
NEW GEOLOGICAL MAPPING AND 40AR/39AR GEOCHRONOLOGY DEMONSTRATE THAT RHYOLITE VOLCANISM MIRRORS NORTHWARD PROPAGATION OF MID-MIOCENE COLUMBIA RIVER FLOOD BASALTS
BENSON, Thomas R., MAHOOD, Gail A., COBLE, Matthew A. and GROVE, Marty J., Department of Geological Sciences, Stanford University, Bldg 320, 450 Serra Mall, Stanford, CA 94305-2115, trb@stanford.edu, trb@stanford.edu
3-3
8:40 AM
CO-CRBG RHYOLITE VOLCANISM REASSESSED
STRECK, Martin J., Department of Geology, Portland State University, Portland, OR 97207, MCINTOSH, William, New Mexico Bureau of Geology and Mineral Resources, New Mexico Tech, 801 Leroy Place, Socorro, NM 87801 and FERNS, Mark L., College of Arts and Sciences, Eastern Oregon University, La Grande, OR 97850, streckm@pdx.edu, streckm@pdx.edu
3-4
9:00 AM
EARLY RESULTS ON MIOCENE BASALTIC LAVAS EXPOSED IN THE INTERVENING AREA OF PICTURE GORGE AND STEENS BASALT OF THE CRBG, EASTERN OREGON
CAHOON, Emily B., Department of Geology, Portland State University, PO Box 751, Portland, OR 97207 and STRECK, Martin J., Department of Geology, Portland State University, Portland, OR 97207, ecahoon@pdx.edu, ecahoon@pdx.edu
3-5
9:20 AM
THE STRAWBERRY VOLCANICS: A NEW UNIT OF THE COLUMBIA RIVER BASALT GROUP 
STEINER, Arron and STRECK, Martin, Portland State University, Portland, OR 97201, arron@pdx.edu, arron@pdx.edu
3-6
9:40 AM
JOSEPH CREEK FLOW, GRANDE RONDE BASALT – AN EXAMPLE OF A COMPLEX COMPOSITIONAL EVOLUTION THROUGH TIME
REIDEL, Stephen P., School of the Environment, Washington State University, Pullman, WA 99164 and TOLAN, Terry L., Department of Geology, Portland State University, Portland, OR 97201, sreidel@wsu.edu, sreidel@wsu.edu
 
10:00 AM
Break
3-7
10:15 AM
THE INFLUENCE OF CASCADIA SUBDUCTION AND THE HIGH LAVA PLAINS ON SILICIC MAGMATISM AT NEWBERRY VOLCANO, CENTRAL OREGON
TEMPLETON, Jeffrey H., Dept. of Earth and Physical Science, Western Oregon University, 345 N. Monmouth Ave, Monmouth, OR 97361, templej@wou.edu, templej@wou.edu
3-8
10:35 AM
MIXING AND HYBRIDIZATION OF MELTS AND CUMULATES IN THE RATTLESNAKE TUFF MAGMA SYSTEM REVEALED BY GLASS CHEMISTRY AND ZIRCON TEXTURES
LAIB, Amanda, Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725 and SCHMITZ, Mark D., Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535, amandalaib@u.boisestate.edu, amandalaib@u.boisestate.edu
3-9
10:55 AM
UNDERSTANDING THE SOURCES OF SEGMENTATION OF VOLCANIC CENTERS ALONG THE YELLOWSTONE HOTSPOT TRACK: INSIGHTS FROM HIGH RESOLUTION THERMOMECHANICAL MODELING
COLON, Dylan P., Department of Geological Sciences, University of Oregon, 1272 University of Oregon, Eugene, OR 97402, BINDEMAN, Ilya N., Earth Sciences, University of Oregon, Eugene, OR 97403 and GERYA, Taras, Institute of Geophysics, ETH Zentrum, Sonneggstrasse 5, Zürich, 8092, Switzerland, dcolon@uoregon.edu, dcolon@uoregon.edu
3-10
11:15 AM
PRELIMINARY CHARACTERIZATION AND INTERPRETATION OF A THICK RHYOLITE IGNIMBRITE IN BOREHOLE USGS 142 ON THE IDAHO NATIONAL LABORATORY, EASTERN SNAKE RIVER PLAIN
MCCURRY, Michael1, GOLDSBY, Ryan C.1, LOCHRIDGE, William1, HACKETT, William R.2, PHILLIPS, William M.3 and MARTIN, Evan4, (1)Department of Geosciences, Idaho State University, Pocatello, ID 83209, (2)WRH Associates, Inc., 2007 Cherokee Circle, Ogden, UT 84403, (3)Idaho Geological Survey, University of Idaho, 875 Perimeter Dr MS 3014, Moscow, ID 83844-3014, (4)321 North Howard Street, Moscow, ID 83843, mccumich@isu.edu, mccumich@isu.edu
3-11
11:35 AM
CONSTRAINING THE PETROGENESIS OF THE QUATERNARY TOPAZ RHYOLITE LAVA DOMES OF THE BLACKFOOT VOLCANIC FIELD, SOUTHEASTERN IDAHO
LOCHRIDGE, William, MCCURRY, Michael and GOLDSBY, Ryan C., Department of Geosciences, Idaho State University, Pocatello, ID 83209, lochwill@isu.edu, lochwill@isu.edu
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