Session: New Insights into the Petrology of Mesozoic Cordilleran Batholiths (Posters) (Cordilleran Section - 106th Annual Meeting, and Pacific Section, American Association of Petroleum Geologists (27-29 May 2010))

Paper #

Booth #

1

32

MAFIC-FELSIC MAGMA MIXING IN CONTINENTAL CRUST FORMATION: AN EXAMPLE FROM LOW-INITIAL SR GRANITOIDS OF THE NORTHWESTERN PENINSULAR RANGES BATHOLITH, SOUTHERN CALIFORNIA

CLAUSEN, Benjamin L., Geoscience Res Inst &, Dept Earth and Biological Sciences, Loma Linda Univ, Loma Linda, CA 92350, MORTON, Douglas M., U.S. Geol Surv &, Dept Earth Sciences, Univ of California, Riverside, CA 92521, KISTLER, Ronald W., U.S. Geol Surv, 345 Middlefield Rd, Menlo Park, CA 94025 and LEE, Cin-Ty A., Dept Earth Science, Rice Univ, MS 126, 6100 Main St, Houston, TX 77005, bclausen@llu.edu, bclausen@llu.edu

2

33

A RECONNAISSANCE STUDY OF GRANITE SUITES ACROSS SAN DIEGO COUNTY USING ¹⁷⁶Hf/¹⁷⁷Hf FROM SINGLE ZIRCON GRAINS: EVIDENCE OF MAGMA MIXING BETWEEN MANTLE-DERIVED AND CRUSTAL-DERIVED MELTS

SHAW, Stirling E., GEMOC National Key Centre, Department of Earth and Planetary Sciences, Macquarie University, New South Wales, 2109, Australia and TODD, Victoria R., N/a, 1740 Clarion Drive, Williamsport, PA 17701-1929, vtodd2@comcast.net, vtodd2@comcast.net

3

34

THE ZONED RAMONA PLUTONIC COMPLEX, SAN DIEGO COUNTY, CALIFORNIA: A MID-CRUSTAL MAGMA CHAMBER BENEATH A CRETACEOUS STRATOVOLCANO?

TODD, Victoria R., N/a, 1740 Clarion Drive, Williamsport, PA 17701-1929, HERNANDEZ, Janis L., California Geological Survey, 320 W. 4th Street, Suite 850, Los Angeles, CA 90013, KIMBROUGH, David L., Department of Geological Sciences, San Diego State University, San Diego, CA 92182-1020 and BUSCH, Lawrence L., California Geological Survey, 888 S. Figueroa Street, Suite 475, Los Angeles, CA 90017, vtodd2@comcast.net, vtodd2@comcast.net

4

35

WIDESPREAD CRUSTAL CONTAMINATION OF EARLY PROTEROZOIC MAGMAS: AN EXAMPLE FROM THE FENNER GNEISS, PIUTE AND OLD WOMAN MOUNTAINS, SAN BERNARDINO COUNTY, CALIFORNIA

BENDER, E. Erik, Dept. of Geology, Orange Coast College, 2701 Fairview Rd, Costa Mesa, CA 92626, ebender@occ.cccd.edu, ebender@occ.cccd.edu

5

36

LATE CRETACEOUS GRANITOIDS IN THE MIDDLE TO LOWER CRUST, EASTERN TRANSVERSE RANGES, CALIFORNIA: MAGMATIC EVOLUTION IN A CRUSTAL COLUMN

IANNO, Adam J., Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, ZHS 117, Los Angeles, CA 90089-0740 and PATERSON, Scott R., Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, Zumberge Hall of Science (ZHS), Los Angeles, CA 90089-0740, ianno@usc.edu, ianno@usc.edu

6

37

TEMPORAL AND SPATIAL GEOCHEMICAL EVOLUTION OF MESOZOIC MAGMATISM IN THE CENTRAL SIERRA ARC, CALIFORNIA

ZHANG, Tao¹, PATERSON, Scott², PIGNOTTA, Geoffrey³, ANDERSON, J. Lawford², MEMETI, Vali⁴ and MUNDIL, Roland⁵, (1)Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089, (2)Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, (3)Department of Geology, University of Wisconsin - Eau Claire, 105 Garfield Ave, Eau Claire, WI 54702, (4)Department of Earth and Planetary Sciences, Washington University in St. Louis, 1 Brookings Dr, St. Louis, MO 63130-4862, (5)Berkeley Geochronology Ctr, 2455 Ridge Rd, Berkeley, CA 94709-1211, taozhang@usc.edu, taozhang@usc.edu

7

38

MICROANALYSIS OF K-FELDSPAR MEGACRYSTS AT THE EASTERN CATHEDRAL PEAK GRANODIORITE-HOST ROCK BOUNDARY, SADDLEBAG LAKE PENDANT, SIERRA NEVADA, CA

GROSS, M. Benjamin, Department of Earth and Planetary Sciences, Washington University in St. Louis, 1 Brookings Dr, Saint Louis, MO 63130-4862, MEMETI, Vali, Department of Earth and Planetary Sciences, Washington University in St. Louis, 1 Brookings Dr, St. Louis, MO 63130-4862, KRAUSE, Joachim, Helmholtz-Zentrum Dresden-Rossendorf, Halsbrücker Straße 34, Freiberg, 09599, Germany and PATERSON, Scott R., Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, Zumberge Hall of Science (ZHS), Los Angeles, CA 90089-0740, mbgross@wustl.edu, mbgross@wustl.edu

8

39

MAGMA DIFFERENTIATION AS RECORDED BY CHANGES IN MINERAL STRATIGRAPHY WITHIN LAYERED MAFIC CUMULATES (WESTERN SIERRA NEVADA BATHOLITH, CALIFORNIA)

SEAL, Elizabeth, Department of Geological Sciences, California State University, Fullerton, 800 N. State College Blvd, Fullerton, CA 92834 and CLEMENS-KNOTT, Diane, California State University, Fullerton, CA 92834, gatorseal3@gmail.com, gatorseal3@gmail.com

9

40

MINERALOGY AND PETROGRAPHY OF THE POLYMETAMORPHIC KINGS SEQUENCE, LAKE KAWEAH PENDANT, WEST-CENTRAL SIERRA NEVADA BATHOLITH, CA

CASTELLANOS, Crystal, Department of Geological Sciences, California State University, Fullerton, 800 N. State College Blvd, Fullerton, CA 92834 and CLEMENS-KNOTT, Diane, California State University, Fullerton, CA 92834, crystalabril@csu.fullerton.edu, crystalabril@csu.fullerton.edu

10

41

STABLE ISOTOPE RECORD OF ARCHEAN AND CAMBRIAN SERPENTINIZING FLUID COMPOSITION FROM STICHTITE (MG-CR CARBONATE HYDROXIDE)

MELCHIORRE, Erik, Geology Department, California State University, 5500 University Parkway, San Bernardino, CA 92407 and LOPEZ, Amanda, Geological Sciences, California State University, San Bernardino, 5500 University Parkway, San Bernardino, CA 92407, emelch@csusb.edu, emelch@csusb.edu

11

42

GEOCHEMICAL FINGERPRINT OF PLACER GOLD FROM THE MIDDLE CAMP DISTRICT, QUARTZSITE, AZ

MELCHIORRE, Erik, Geology Department, California State University, 5500 University Parkway, San Bernardino, CA 92407 and VELASQUEZ, Christina, Geological Sciences, California State University, San Bernardino, 5500 University Parkway, San Bernardino, CA 92407, emelch@csusb.edu, emelch@csusb.edu

12

43

A STABLE ISOTOPE AND PETROGENETIC STUDY OF THE ALKALINE PENTICTON GROUP VOLCANIC SUITE: THE WHITE LAKE BASIN, SOUTH-CENTRAL BRITISH COLUMBIA, CANADA

MALLORY, Marci¹, HOLK, Gregory J.², LARSON, Peter B.³ and COCHRANE, Matt¹, (1)Department of Geological Sciences, California State University, Long Beach, 1250 Bellflower Blvd, Long Beach, CA 90840, (2)Department of Geological Sciences and IIRMES, California State Univ Long Beach, 1250 Bellflower Blvd, Long Beach, CA 90840, (3)School of Earth and Environmental Science, Washington State University, PO Box 642812, Washington State University, Pullman, WA 99164-2812, marci.mallory@yahoo.com, marci.mallory@yahoo.com

13

44

COMPARISON OF CRETACEOUS VS. EOCENE GRANITOID INTRUSIONS IN NE WASHINGTON: PETROLOGY AND AL-IN-HORNBLENDE BAROMETRY

KNUDSEN, Duncan F., University of Puget Sound, dknudsen@pugetsound.edu, dknudsen@pugetsound.edu

14

45

CRETACEOUS TECTONIC AND MAGMATIC EVOLUTION OF THE BENDELEBEN AND WINDY CREEK PLUTONS, SEWARD PENINSULA, ALASKA

HARRIS, Daniel B., TORO, Jaime and MCDANNELL, Kalin T., Geology and Geography, West Virginia University, 98 Beechurst Ave, 330 Brooks Hall, Morgantown, WV 26506, dharri11@mix.wvu.edu, dharri11@mix.wvu.edu

Cordilleran Section - 106th Annual Meeting, and Pacific Section, American Association of Petroleum Geologists (27-29 May 2010)

T11. New Insights into the Petrology of Mesozoic Cordilleran Batholiths (Posters)