Geological Society of America

8:00 AM

REDUCED LIKELIHOOD OF VOLCANIC DISRUPTION OF A GEOLOGIC REPOSITORY AT YUCCA MOUNTAIN

Neil Coleman, U.S. Nuclear Regulatory Commission, Washington, DC and Bruce Marsh, Johns Hopkins Univ, Baltimore, MD

124262 (Technical Sessions)

8:15 AM

TECTONICALLY CONTROLLED, TIME-PREDICTABLE BASALTIC VOLCANISM FROM A LITHOSPHERIC MANTLE SOURCE, SOUTHWESTERN NEVADA VOLCANIC FIELD, USA

Frank Perry, Los Alamos National Laboratory, Los Alamos, NM and Greg Valentine, Los Alamos, NM

127209 (Technical Sessions)

8:30 AM

COOLING HISTORY OF THE TOPOPAH SPRING TUFF AT YUCCA MOUNTAIN, NEVADA

David C. Buesch, U. S. Geological Survey, Menlo Park, CA and James R. Riehle, Anchorage, AK

131565 (Technical Sessions)

8:45 AM

THE FATE OF AIRFALL VOLCANIC ASH IN LARGE AND SMALL LACUSTRINE SYSTEMS: ASH STRATINOMY OF THE EOCENE GREEN RIVER AND FLORISSANT FORMATIONS

Charles A. Ver Straeten, New York State Museum, Albany, NY

131610 (Technical Sessions)

9:00 AM

BIMODAL VOLCANISM IN THE HUIZACHAL VALLEY AND ITS RELATIONSHIP TO THE CONTINENTAL SEDIMENTATION DURING THE RIFTING STAGE OF THE SIERRA MADRE ORIENTAL IN MEXICO

Juan Alonso Ramirez Fernandez, Universidad Autonoma de Nuevo Leon, Linares, N/A and Raul Garcia Obregon, Universidad Autonoma de Nuevo Leon, Linares, N/A and Fernando Velasco Tapia, Universidad Autonoma de Nuevo Leon, Linares, N/A and Uwe Jenchen, Universidad Autonoma de Nuevo Leon, Linares and Hector de Leon Gomez, Universidad Autonoma de Nuevo Leon, Linares, N/A

124808 (Technical Sessions)

9:15 AM

MID-CENOZOIC MAGMATISM OF CENTRAL ARIZONA: PETROLOGY OF BASALTIC LAVAS IN THE GOLDFIELD-SUPERSTITION VOLCANIC PROVINCE

R.V. Fodor, North Carolina State Univ, Raleigh, NC and S.K. Vetter, Centenary College, Shreveport, LA

124874 (Technical Sessions)

9:30 AM

THE INFLUENCE OF DEPOSITIONAL SETTING AND FLUCTUATING ACCOMMODATION SPACE ON KIMBERLITE EDIFICE PRESERVATION: IMPLICATIONS FOR VOLCANOLOGICAL MODELS OF DIAMONDIFEROUS KIMBERLITES AT FORT À LA CORNE, SASKATCHEWAN, CANADA

John-Paul Zonneveld, Geological Survey of Canada, Calgary, AB and Bruce A. Kjarsgaard, Geological Survey of Canada, Ottawa, ON and Shawn Harvey, Shore Gold Inc, Saskatoon, SK and David H. McNeil, Geol Survey of Canada, Calgary, AB

130955 (Technical Sessions)

9:45 AM

CRUSTAL MAGMATIC PLUMBING AND ITS INFLUENCE ON THE GEOMORPHIC FORM OF THE MCMURDO DRY VALLEYS, ANTARCTICA

Bruce D. Marsh, Johns Hopkins Univ, Baltimore, MD and Barbara Souter, Johns Hopkins Univ, Baltimore, MD and Dean Peterson, Univ. of Minnesota-Duluth, Duluth, MN and Paul Morin, Univ of Minnesota, Minneapolis, MN and Zbigniew Malolepszy, Univ of Silesia, Sosnowiec, N/A

128725 (Technical Sessions)

10:00 AM

THE ROLE OF ENRICHED-MANTLE IN THE PETROGENESIS OF THE POST-OROGENIC ITU GRANITIC PROVINCE, SE BRAZIL: PETROLOGY OF THE PIRACAIA MONZODIORITE

Valdecir A. Janasi, Universidade de São Paulo, Sao Paulo, N/A and Bruno Salmoni, Universidade de São Paulo, Sao Paulo, N/A and Horstpeter Ulbrich, Universidade de São Paulo, Sao Paulo, N/A

129263 (Technical Sessions)

10:30 AM

THE KLIPKOOF GRANITES OF THE BUSHVELD GRANITE SUITE, SOUTH AFRICA: SIGNIFICANCE OF MAGMATIC AND HYDROTHERMAL TOURMALINE FOR POLYMETALLIC MINERALIZATION

Karen M. Volp, Centro de Geociências - Interchange PhD candidate, Pará, N/A and Robert F. Martin, McGill Univ, Montreal, QC and Judith A. Kinnaird, University of the Witwatersrand, Wits, Johannesburg, N/A and Davis Carvalho de Oliveira, Universidade Federal do Pará - Campus Universitário de Marabá, Marabá, N/A

131915 (Technical Sessions)

10:45 AM

FURTHER FORAYS INTO “FTP ROCKS” ASSOCIATED WITH MASSIF ANORTHOSITES OF THE CRUML BELT, GRENVILLE PROVINCE, QUEBEC: MULTIPLE ORIGINS FOR JOTUNITES, OAGNS, NELSONITES, AND MASSIVE OXIDE DEPOSITS

Robert F. Dymek, Washington University, St. Louis, MO and Brent E. Owens, College of William and Mary, Williamsburg, VA and Tomas Feininger, Université Laval, Québec, QC

131572 (Technical Sessions)

11:00 AM

TOWARD A THERMAL MODEL FOR THE SKAERGAARD LIQUIDUS

Stearns A. Morse, Univ of Massachusetts, Amherst, MA

127724 (Technical Sessions)

11:15 AM

MULTIPLE POPULATIONS OF MAGMATIC EPIDOTE AND MAGMATIC GARNET FROM THE NORTH CASCADE MOUNTAINS, WASHINGTON, U.S.A.: GEOCHEMICAL INDICATORS OF EARLY MAGMATIC PROCESSES

Ian S. Merkel, Freeport McMoRan, Morenci, AZ

129698 (Technical Sessions)

11:30 AM

WIDESPREAD RECYCLING OF OLDER INTO YOUNGER MAGMATIC PHASES IN A LARGE MAGMA CHAMBER: THE TUOLUMNE BATHOLITH, SIERRA NEVADA, CALIFORNIA

Scott R. Paterson, University of Southern California, Los Angeles, CA and Jiri Zak, Charles Univ, Prague, N/A and Valbone Memeti, University of Southern California, Los Angeles, CA and Jennifer Matzel, Berkeley Geochronology Ctr, Berkeley, CA and Roland Mundil, Berkeley Geochronology Ctr, Berkeley, CA

124593 (Technical Sessions)

11:45 AM

RAPID, UNDERCOOLED CRYSTALLIZATION OF A THIN PEGMATITE DIKE. INSIGHTS FROM MICROTHERMOMETRY AND CONDUCTIVE-COOLING NUMERICAL MODELING

Mona-Liza C. Sirbescu, Central Michigan University, Mount Pleasant, MI and James J. Student, Central Michigan University, Mount Pleasant, MI

132557 (Technical Sessions)

3 Mineralogy/Crystallography; Petrology; Volcanology I

Presentations