Session: Volcanology, Igneous and Metamorphic Petrology (Rocky Mountain (56th Annual) and Cordilleran (100th Annual) Joint Meeting (May 3

Paper #

Start Time

1

8:20 AM

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

ERICKSEN, Shelly M.¹, MILLER, Jonathan S.², MILLER, Calvin F.³, HARPER, Brian E.³ and AGGARWAL, Jugdeep K.⁴, (1)Dept. of Geology, San Jose State Univ, San Jose, CA 95192-0102, (2)Dept. of Geology, San Jose State Univ, San Jose, CA, (3)Dept. of Geology, Vanderbilt Univ, Nashville, TN, (4)Dept. of Earth Sciences, University of California, Santa Cruz, Santa Cruz, CA, shellyericksen@hotmail.com, shellyericksen@hotmail.com

2

8:40 AM

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

HOFFER, Matthew R., Geological Sciences, Univ of Idaho, 520 Troy Highway, Apt. 1, Moscow, ID 83843, GEIST, Dennis J., Geological Sciences, Univ of Idaho, 322 Mines, University of Idaho, Moscow, ID 83843, LEWIS, Reed S., Main Office Moscow, Idaho Geol Survey, Morrill Hall, Third Floor, University of Idaho, Moscow, ID 83844-3014 and DONELICK, Raymond A., Apatite to Zircon, Inc, 1075 Matson Road, Viola, ID 83872-9709, hoff8124@uidaho.edu, hoff8124@uidaho.edu

3

9:00 AM

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

STEINWINDER, Thomas R.¹, MILLER, Calvin F.², FAULDS, James E.³, KOTEAS, Christopher¹ and ERICKSEN, Shelly M.⁴, (1)Dept. of Geology, Vanderbilt Univ, Nashville, TN 37235, (2)Dept. of Geology, Vanderbilt Univ, Nashville, TN, (3)Nevada Bureau of Mines and Geology, Univ of Nevada, MS 178, Reno, NV 89557, (4)Dept. of Geology, San Jose State Univ, San Jose, CA 95192-0102, thomas.r.steinwinder@vanderbilt.edu, thomas.r.steinwinder@vanderbilt.edu

4

9:20 AM

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

NUDE, Prosper M., Geology, Utah State Univ, Logan, UT 84322-4505 and SHERVAIS, John W., Geology Dept, Utah State Univ, Logan, UT 84322-4505, pmnude@cc.usu.edu, pmnude@cc.usu.edu

5

9:40 AM

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

BENNETT, Kristeen, Department of Geoscience, Univ of Nevada, Las Vegas, Las Vegas, NV 89154-4010 and SMITH, Eugene, Department of Geoscience, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Las Vegas, NV 89154-4010, bennettk@unlv.nevada.edu, bennettk@unlv.nevada.edu

10:00 AM

Break

6

10:20 AM

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

TEMPLETON, Jeffrey H., Earth and Physical Sciences Dept, Western Oregon Univ, 345 N. Monmouth Ave, Monmouth, OR 97361, templej@wou.edu, templej@wou.edu

7

10:40 AM

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

BERKEBILE, Martha S., 314 Champions Drive, Rockport, TX 78382, HANSON, Richard E., Geology, Texas Christian Univ, TCU Box 298830, Fort Worth, TX 76129, GOSE, Wulf A., Geological Sciences, The Univ of Texas at Austin, Dept Geological Sciences C1100, The University of Texas at Austin, Austin, TX 78712-1101 and HARWOOD, David S., US Geological Survey, Menlo Park, CA 94025, marthab@pyramid3.net, marthab@pyramid3.net

8

11:00 AM

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

RIKER, Jenny M. and CASHMAN, Katharine V., Department of Geological Sciences, Univ of Oregon, 1272 University of Oregon, Eugene, OR 97403-1272, jriker@gladstone.uoregon.edu, jriker@gladstone.uoregon.edu

9

11:20 AM

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

KELLY, Eric D.¹, HOISCH, Thomas D.¹ and WELLS, Michael L.², (1)Geology, Northern Arizona Univ, Box 4099, Flagstaff, AZ 86011, (2)Department of Geoscience, Univ of Nevada Las Vegas, Las Vegas, NV 89154-4010, edk@dana.ucc.nau.edu, edk@dana.ucc.nau.edu

10

11:40 AM

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

HONESTO, Jenise Marie and FOX, L.K., Department of Geosciences, Univ of the Pacific, 3601 Pacific Avenue, Stockton, CA 95211, j_honesto@pacific.edu, j_honesto@pacific.edu

Rocky Mountain (56th Annual) and Cordilleran (100th Annual) Joint Meeting (May 3–5, 2004)

Volcanology, Igneous and Metamorphic Petrology