Geological Society of America

8:00 AM

EVOLUTION OF MIOCENE MAGMATISM ALONG DEATH VALLEY, CALIFORNIA: ND-SR-PB ISOTOPIC CONSTRAINTS

O. Tapani Rämö, Univ of Helsinki, Helsinki, N/A and J.P. Calzia, U.S. Geological Survey, Menlo Park, CA

134166 (Technical Sessions)

8:20 AM

DIFFERENTIATING LAVA TUBE SKYLIGHTS FROM PIT CRATERS; A STUDY OF THE CAVE-LIKE STRUCTURES ON ARSIA MONS, MARS

William R. Halliday, International Union of Speleology, Nashville, TN and J. Judson Wynne, Northern Arizona University, Flagstaff, AZ

133859 (Technical Sessions)

8:40 AM

SILVER CREEK CALDERA, PROBABLE SOURCE OF THE MIOCENE PEACH SPRING TUFF, OATMAN MINING DISTRICT, ARIZONA

Charles A. Ferguson, Arizona Geological Survey, Tucson, AZ

135632 (Technical Sessions)

9:00 AM

ERUPTIVE AND DEPOSITIONAL PROCESSES OF NARBONA PASS MAAR VOLCANO, NAVAJO VOLCANIC FIELD, NAVAJO NATION, NEW MEXICO

Brittany Brand, Arizona State University, Tempe, AZ and Amanda Clarke, Arizona State University, Tempe, AZ and Steven Semken, Arizona State University, Tempe, AZ

134321 (Technical Sessions)

9:20 AM

RARE-EARTH ELEMENT DISTRIBUTION IN THE MOHAVE COUNTY PEGMATITES, NORTHWESTERN ARIZONA

Sarah L. Hanson, Adrian College, Adrian, MI and William B. Simmons, Univ of New Orleans, New Orleans, LA and Alexander U. Falster, Univ of New Orleans, New Orleans, LA

134341 (Technical Sessions)

9:40 AM

IN-SITU LA-ICP-MS ANALYSIS OF PYROXENE IN THE PERIDOTITE OF THE COAST RANGE OPHIOLITE, CALIFORNIA

Marlon M. Jean, Northern Illinois University, DeKalb, IL and John Shervais, Utah State University, Logan, UT and Samuel Mukasa, University of Michigan, Ann Arbor, MI and Sung Hi Choi, Chungnam National University, Daejeon, N/A

134476 (Technical Sessions)

10:20 AM

BASALT SOURCE EVOLUTION AT THE INTERSECTION OF THE SNAKE RIVER PLAIN-YELLOWSTONE AND HIGH LAVA PLAINS-NEWBERRY MAGMATIC PROVINCES

William K. Hart, Miami University, Oxford, OH and Kurt Shoemaker, Shawnee State University, Portsmouth, OH and Matthew E. Brueseke, Kansas State University, Manhattan, KS and Ninad R. Bondre, London, N/A

135056 (Technical Sessions)

10:40 AM

A NEW 3-DIMENSIONAL VIEW OF THE MID-MIOCENE VOLCANIC AND PLUTONIC ROCKS OF THE RIVER MOUNTAINS, SOUTHERN NEVADA

Eugene Smith, University of Nevada, Las Vegas, Las Vegas, NV and Racheal Johnsen, University of Nevada, Las Vegas, Las Vegas, NV and Denise Honn, University of Nevada, Las Vegas, Las Vegas, NV and Ray Brainard, Black and Veatch Corporation, Kansas City, MO and Richard Coon, CH2MHill, Henderson, NV

134999 (Technical Sessions)

11:00 AM

QUATERNARY BASALTIC VOLCANISM ALONG THE NORTHWESTERN MARGIN OF THE OWYHEE PLATEAU, SE OREGON

Emily J. Short, Miami University, Oxford, OH and Jamie M. Jastrab, Miami University, Oxford, OH and William K. Hart, Miami University, Oxford, OH

135113 (Technical Sessions)

11:20 AM

TIMING OF HIGH PRESSURE METAMORPHISM AND PARTIAL MELTING FIORDLAND, NEW ZEALAND

Harold Stowell, Univ of Alabama, Tuscaloosa, AL and Mathew Gatewood, Univ of Alabama, Tuscaloosa, AL and Karen A. Parker, Univ of Alabama, Tuscaloosa, AL and Andy Tulloch, Dunedin, N/A and Alan E. Koenig, U.S. Geological Survey, Denver, CO

135257 (Technical Sessions)

11:40 AM

LATE CRETACEOUS AMPHIBOLITE FACIES METAMORPHISM IN THE SAPPHIRE MOUNTAINS, SOUTHWESTERN MONTANA CONSTRAINED BY U-PB DATING OF MONAZITE

John H. Dye, Boise State University, Boise, ID and Julia Baldwin, University of Montana, Missoula, MT and James L. Crowley, Boise State University, Boise, ID and Mark Schmitz, Boise State University, Boise, ID

134960 (Technical Sessions)

1 Igneous/Metamorphic Petrology, and Volcanology

Presentations