Session: Mineralogy/Crystallography; Petrology; Volcanology I (2007 GSA Denver Annual Meeting (28

Paper #

Start Time

1

8:00 AM

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

COLEMAN, Neil, U.S. Nuclear Regulatory Commission, Mail Stop T2E26, Washington, DC 20555 and MARSH, Bruce, Earth & Planetary Sciences, Johns Hopkins Univ, Baltimore, MD 21218, nmc@nrc.gov, nmc@nrc.gov

2

8:15 AM

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

PERRY, Frank, Earth and Environmental Sciences Division, Los Alamos National Laboratory, EES-9, MS D452, Los Alamos, NM 87545 and VALENTINE, Greg, Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM 87545, fperry@lanl.gov, fperry@lanl.gov

3

8:30 AM

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

BUESCH, David C., U. S. Geological Survey, 345 Middlefield Road, MS 973, Menlo Park, CA 94025 and RIEHLE, James R., Anchorage, AK 99516, dbuesch@usgs.gov, dbuesch@usgs.gov

4

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

VER STRAETEN, Charles A., New York State Museum, The State Education Department, Albany, NY 12230, cverstra@mail.nysed.gov, cverstra@mail.nysed.gov

5

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

RAMIREZ FERNANDEZ, Juan Alonso¹, GARCIA OBREGON, Raul¹, VELASCO TAPIA, Fernando¹, JENCHEN, Uwe¹ and DE LEON GOMEZ, Hector², (1)Facultad de Ciencias de la Tierra, Universidad Autonoma de Nuevo Leon, AP 104, Carretera Linares Cerro Prieto Km. 8, Linares, 67700, Mexico, (2)Facultad de Ciencias de la Tierra, Universidad Autonoma de Nuevo Leon, AP 104, Linares, 67700, Mexico, juanaram@prodigy.net.mx, juanaram@prodigy.net.mx

6

9:15 AM

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

FODOR, R.V., North Carolina State Univ, Raleigh, NC 27695 and VETTER, S.K., Centenary College, Shreveport, LA 71134, rfodor@ncsu.edu, rfodor@ncsu.edu

7

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

ZONNEVELD, John-Paul, Geological Survey of Canada, Calgary, AB T2L 2A7, Canada, KJARSGAARD, Bruce A., Natural Resources Canada, Geological Survey of Canada, 601 Booth St., Ottawa, ON K1A 0E8, Canada, HARVEY, Shawn, Shore Gold Inc, 300-224 4th Ave South, Saskatoon, SK S7K 5M5, Canada and MCNEIL, David H., Geol Survey of Canada, 3303 33rd St. N.W, Calgary, AB T2L 2A7, Canada, bkjarsga@nrcan.gc.ca, bkjarsga@nrcan.gc.ca

8

9:45 AM

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

MARSH, Bruce D., Earth and Planetary Sciences, Johns Hopkins Univ, Olin Hall, 3400 N. Charles St, Baltimore, MD 21218, SOUTER, Barbara, Earth and Planetary Sciences, Johns Hopkins Univ, 301 Olin Hall, 3400 N. Charles St, Baltimore, MD 21218, PETERSON, Dean, Natural Resources Research Institute, Univ. of Minnesota-Duluth, 5013 Miller Trunk Highway, Duluth, MN 55811, MORIN, Paul, Department of Geology and Geophysics, Univ of Minnesota, 310 Pillsbury Drive SE, Minneapolis, MN 55455-0219 and MALOLEPSZY, Zbigniew, Minnesota Geological Survey & Department of Fundamental Geology, Univ of Silesia, Bedzinska 60, 41-200, Sosnowiec, 55114, bmarsh@jhu.edu, bmarsh@jhu.edu

9

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

JANASI, Valdecir A., SALMONI, Bruno and ULBRICH, Horstpeter, Instituto de Geociências, Universidade de São Paulo, Rua do Lago 562, Cidade Universitaria, Sao Paulo, 05508-800, Brazil, vajanasi@usp.br, vajanasi@usp.br

10

10:15 AM

Withdrawn

11

10:30 AM

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

VOLP, Karen M., Australian Representative of IGCP-510, Centro de Geociências - Interchange PhD candidate, Universidade Federal do Pará, Caixa Postal 1611, CEP: 66075-110, Belém, Pará, Brazil, MARTIN, Robert F., Editor of The Canadian Mineralogist, McGill Univ, 3450 University Street, Montreal, QC H3A 2A7, Canada, KINNAIRD, Judith A., Acting Director, University of the Witwatersrand, Wits, Johannesburg, South Africa and CARVALHO DE OLIVEIRA, Davis, Professor, Universidade Federal do Pará - Campus Universitário de Marabá, Marabá, Brazil, karen.volp@jcu.edu.au, karen.volp@jcu.edu.au

12

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

DYMEK, Robert F., Department of Earth and Planetary Sciences, Washington University, 1 Brookings Drive, St. Louis, MO 63130, OWENS, Brent E., Department of Geology, College of William and Mary, Williamsburg, VA 23187 and FEININGER, Tomas, Département de géologie, Université Laval, Québec, QC G1K7P4, Canada, bob_d@levee.wustl.edu, bob_d@levee.wustl.edu

13

11:00 AM

TOWARD A THERMAL MODEL FOR THE SKAERGAARD LIQUIDUS

MORSE, Stearns A., Dept. of Geosciences, Univ of Massachusetts, 611 North Pleasant Street, Amherst, MA 01003-9297, tm@geo.umass.edu, tm@geo.umass.edu

14

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

MERKEL, Ian S., Freeport McMoRan, Morenci, AZ 85540, nopest@hotmail.com, nopest@hotmail.com

15

11:30 AM

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

PATERSON, Scott R.¹, ZAK, Jiri², MEMETI, Valbone³, MATZEL, Jennifer⁴ and MUNDIL, Roland⁴, (1)Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, Los Angeles, CA 90089, (2)Department of Geology, Faculty of Science, Charles Univ, Czech Republic, Prague, (3)Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089, (4)Berkeley Geochronology Ctr, 2455 Ridge Rd, Berkeley, CA 94709-1211, paterson@usc.edu, paterson@usc.edu

16

11:45 AM

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

SIRBESCU, Mona-Liza C. and STUDENT, James J., Geology, Central Michigan University, 314 Brooks Hall, Mount Pleasant, MI 48858, sirbe1mc@cmich.edu, sirbe1mc@cmich.edu

2007 GSA Denver Annual Meeting (28–31 October 2007)

Mineralogy/Crystallography; Petrology; Volcanology I