Geological Society of America

8:20 AM

ISOTOPIC CONSTRAINTS ON THE EVOLUTION OF FELSIC MAGMA IN THE AZTEC WASH PLUTON, ELDORADO MOUNTAINS, NEVADA

Shelly M. Ericksen, San Jose State Univ, San Jose, CA and Jonathan S. Miller, San Jose State Univ, San Jose, CA and Calvin F. Miller, Vanderbilt Univ, Nashville, TN and Brian E. Harper, Vanderbilt Univ, Nashville, TN and Jugdeep K. Aggarwal, University of California, Santa Cruz, Santa Cruz, CA

72450 (Technical Sessions)

8:40 AM

PETROLOGY AND GEOCHEMISTRY OF CRETACEOUS PLUTONS IN THE CAREYWOOD 7.5' QUADRANGLE, NORTHERN IDAHO

Matthew R. Hoffer, Univ of Idaho, Moscow, ID and Dennis J. Geist, Univ of Idaho, Moscow, ID and Reed S. Lewis, Idaho Geol Survey, Moscow, ID and Raymond A. Donelick, Viola, ID

72597 (Technical Sessions)

9:00 AM

TRANSITION FROM PLUTONISM TO VOLUMINOUS DIKING IN THE ELDORADO MOUNTAINS, NORTHERN COLORADO RIVER EXTENSIONAL CORRIDOR, NEVADA

Thomas R. Steinwinder, Vanderbilt Univ, Nashville, TN and Calvin F. Miller, Vanderbilt Univ, Nashville, TN and James E. Faulds, Univ of Nevada, Reno, NV and Christopher Koteas, Vanderbilt Univ, Nashville, TN and Shelly M. Ericksen, San Jose State Univ, San Jose, CA

72786 (Technical Sessions)

9:20 AM

PETROLOGY AND GEOCHEMISTRY OF DEFORMED CARBONATITE AND NEPHELINE-SYENITE GNEISS IN THE PAN-AFRICAN DAHOMEYIDE OF SOUTHEASTERN GHANA, WEST AFRICA

Prosper M. Nude, Utah State Univ, Logan, UT and John W. Shervais, Utah State Univ, Logan, UT

72687 (Technical Sessions)

9:40 AM

THE PANTHER CREEK VOLCANO: A NEWLY DISCOVERED BASALTIC VENT IN YELLOWSTONE NATIONAL PARK

Kristeen Bennett, Univ of Nevada, Las Vegas, Las Vegas, NV and Eugene Smith, University of Nevada, Las Vegas, Las Vegas, NV

72130 (Technical Sessions)

10:20 AM

PETROLOGIC ANALYSIS OF THE TEPEE DRAW TUFF, NEWBERRY VOLCANO, OREGON: PRELIMINARY CONSTRAINTS ON COMPOSITIONAL ZONING IN THE PRE-ERUPTIVE MAGMA CHAMBER

Jeffrey H. Templeton, Western Oregon Univ, Monmouth, OR

72268 (Technical Sessions)

10:40 AM

GEOLOGIC AND PALEOMAGNETIC STUDIES OF A PLIOCENE VOLCANIC DEBRIS-AVALANCHE DEPOSIT IN THE NORTHERN SIERRA NEVADA, CALIFORNIA

Martha S. Berkebile, Rockport, TX and Richard E. Hanson, Texas Christian Univ, Fort Worth, TX and Wulf A. Gose, The Univ of Texas at Austin, Austin, TX and David S. Harwood, US Geological Survey, Menlo Park, CA

72385 (Technical Sessions)

11:00 AM

VOLCANIC HAZARD ON MAUNA LOA'S NORTHWEST FLANK: AN INTEGRATED APPROACH

Jenny M. Riker, Univ of Oregon, Eugene, OR and Katharine V. Cashman, Univ of Oregon, Eugene, OR

72891 (Technical Sessions)

11:20 AM

METAMORPHIC PRESSURE-TEMPERATURE PATHS AND ISOTOPIC DATING IN THE HANGING WALL OF A MAJOR THRUST, SEVIER HINTERLAND, SOUTH-CENTRAL IDAHO

Eric D. Kelly, Northern Arizona Univ, Flagstaff, AZ and Thomas D. Hoisch, Northern Arizona Univ, Flagstaff, AZ and Michael L. Wells, Univ of Nevada Las Vegas, Las Vegas, NV

72889 (Technical Sessions)

11:40 AM

COMPOSITIONAL VARIATIONS AND ORIGINS OF THE ORBS IN MORGAN HILL POPPY JASPER, SOUTHERN SANTA CLARA VALLEY, CA

Jenise Marie Honesto, Univ of the Pacific, Stockton, CA and L.K. Fox, Univ of the Pacific, Stockton, CA

72924 (Technical Sessions)

1 Volcanology, Igneous and Metamorphic Petrology

Presentations