2007 GSA Denver Annual Meeting (28–31 October 2007)
Session No. 169 Tuesday, 30 October 2007
1:30 PM-5:30 PM, Colorado Convention Center: 401/402

T117. The Track of the Yellowstone Hot Spot II: What do Neotectonics, Climate Indicators, Volcanism, and Petrogenesis Reveal about Subsurface Processes? (U.S. Geological Survey)

Lisa A. Morgan, Kenneth L. Pierce and Henrietta E. Cathey, Presiding
 Paper #Start Time
 1:30 PM Introductory Remarks
169-11:35 PM MANTLE SOURCE PROVINCES BENEATH THE PACIFIC NORTHWEST REVEALED BY HELIUM ISOTOPE VARIATIONS IN BASALTIC LAVAS: GRAHAM, D.W., College of Oceanic & Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, dgraham@coas.oregonstate.edu, REID, M.R., Department of Geology, Northern Arizona University, Flagstaff, AZ 86011, JORDAN, B.T., Department of Earth Sciences, University of South Dakota, Vermillion, SD 57069, GRUNDER, A.L., Department of Geosciences, Oregon State University, Corvallis, OR 97331, LEEMAN, W.P., Division of Earth Sciences, National Science Foundation, Arlington, VA 22230, and LUPTON, J.E., Pacific Marine Environmental Lab, National Oceanic & Atmospheric Administration, Hatfield Marine Science Center, Newport, OR 97365
169-21:55 PM CONSTRAINTS ON PLUME–LITHOSPHERE INTERACTION BENEATH THE SNAKE RIVER PLAIN: RADIOGENIC ISOTOPE CONSTRAINTS: HANAN, Barry, Department of Geological Sciences, San Diego State University, San Diego, CA 92182-1020, Barry.Hanan@sdsu.edu, SHERVAIS, John, Geology Department, Utah State University, Logan, UT 84322-4505, and VETTER, Scott, Department of Geology, Centenary College, Shreveport, LA 71134
169-32:10 PM THE BASALTS OF BUTTE 5206: GEOCHEMICAL EVIDENCE FOR FRACTIONAL CRYSTALLIZATION AND MAGMA MIXING TO PRODUCE EASTERN SNAKE RIVER PLAIN OLIVINE THOLEIITE BASALTS: MILLER, Myles L., Department of Geosciences, Idaho State University, 921 S. 8th Avenue, Stop 8072, Pocatello, ID 83209, millmyle@isu.edu and HUGHES, Scott S., Dept. of Geosciences, Idaho State University, Pocatello, ID 83209
169-42:25 PM PATTERNS OF RHYOLITIC VOLCANISM ALONG THE TRACK OF THE YELLOWSTONE HOT SPOT REVEAL SUBSURFACE CONDITIONS: MCINTOSH, William C.1, MORGAN, Lisa A.2, SHANKS, Wayne C. Pat2, and PIERCE, Kenneth L.3, (1) New Mexico Bureau of Mines and Mineral Resources, Socorro, NM 87801, (2) U.S. Geological Survey, 973 Federal Center, Denver, CO 80225-0046, lmorgan@usgs.gov, (3) Northern Rocky Mountain Science Center, U.S. Geological Survey, U.S. Geological Survey, Bozeman, MT, Bozeman, MT 59717-3492
169-52:40 PM HIGH-TEMPERATURE SILICIC MAGMAS OF THE BRUNEAU-JARBIDGE ERUPTIVE CENTER FROM 12.7 – 8.0 MA, YELLOWSTONE HOTSPOT: QUARTZ AND PYROXENE THERMOMETRY: CATHEY, Henrietta E., Geology and Geophysics, University of Utah, Salt Lake City, UT 84112, Cathey@earth.utah.edu and NASH, Barbara P., Department of Geology and Geophysics, Univ of Utah, Salt Lake City, UT 84112
169-62:55 PM SNAKE RIVER PLAIN-YELLOWSTONE SILICIC VOLCANISM: IMPLICATIONS FOR MAGMA GENESIS AND CRUSTAL EVOLUTION: LEEMAN, William P., Earth Science Division, National Science Foundation, 4201 Wilson Blvd, Arlington, VA 22230, wleeman@nsf.gov, ANNEN, Catherine, Département de Minéralogie, Université de Genève, Geneva, 1205, Switzerland, and DUFEK, Josef, Dept. of Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94720
 3:15 PM Break
169-73:30 PM CRYSTAL-SCALE RECORD OF SILICIC MAGMA EVOLUTION BENEATH YELLOWSTONE CALDERA: VAZQUEZ, J.A.1, KYRIAZIS, S.1, SEHLER, R.C.1, and REID, M.R.2, (1) Dept. Geological Sciences, California State University-Northridge, 18111 Nordhoff St, Los Angeles, CA 91330, jvazquez@csun.edu, (2) Dept. of Geology, Northern Arizona University, Flagtsaff, AZ 86011
169-83:45 PM ORIGIN AND EVOLUTION OF SILICIC MAGMATISM AT YELLOWSTONE BASED ON THE ION MICROPROBE ANALYSIS OF ISOTOPICALLY-ZONED ZIRCONS: BINDEMAN, Ilya N.1, FU, Bin2, KITA, Noriko2, and VALLEY, John W.2, (1) Geological Sciences, 1272 University of Oregon, Eugene, OR 97403, bindeman@uoregon.edu, (2) Department of Geology and Geophysics, Univ of Wisconsin, Department of Geology and Geophysics, University of Wisconsin, Madison, WI 53706, USA, Madison, WI 53706
169-94:00 PM VOLUMINOUS LOW-d18O MAGMAS IN HEISE VOLCANIC FIELD, IDAHO: IMPLICATIONS FOR THE FATE OF YELLOWSTONE HOTSPOT CALDERAS: WATTS, Kathryn E., Department of Geological Sciences, 1272 University of Oregon, Eugene, OR 97403, kwatts@uoregon.edu, BINDEMAN, Ilya N., Department of Geological Sciences, 1272 University of Oregon, Eugene, OR 97403, SCHMITT, Axel K., Dept. of Earth and Space Sciences, Univ. of California, Los Angeles, CA 90095-1567, and MORGAN, Lisa A., U.S. Geological Survey, Federal Center, Box 25046, MS 973, Denver, CO 80225
169-104:15 PM OXYGEN ISOTOPE VARIATIONS ALONG THE YELLOWSTONE HOTSPOT TRACE: CAN A SINGLE MODEL EXPLAIN IT ALL?: BOROUGHS, Scott, WOLFF, John, BONNICHSEN, Bill, and LARSON, Peter, School of Earth & Environmental Sciences, Washington State University, Pullman, WA 99164, entoptics@verizon.net
169-114:30 PM WIDESPREAD GENERATION OF LOW-δ18O MAGMA IN THE CENTRAL SNAKE RIVER PLAIN: COMPARING THE WEST BENNETT HILLS AND BRUNEAU-JARBIDGE RHYOLITES: STARKEL, William A.1, WOLFF, John1, BONNICHSEN, Bill2, and GODCHAUX, Martha1, (1) School of Earth & Environmental Sciences, Washington State University, PO Box 642812, Pullman, WA 99164-2812, wstarkel@mail.wsu.edu, (2) School of Earth & Environmental Sciences, Washington State University, Pullman, WA 99164
169-124:45 PM BORON ISOTOPIC VARIATIONS IN NW USA RHYOLITES: YELLOWSTONE, SNAKE RIVER PLAIN, EASTERN OREGON: SAVOV, Ivan, Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC 20560, savov@dtm.ciw.edu and LEEMAN, William P., Earth Science Division, National Science Foundation, 4201 Wilson Blvd, Arlington, VA 22230
 5:00 PM Discussion

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