Session: Causes and Consequences of Magmatic and Tectonic Tempos in Continental and Oceanic Arcs (Posters) (Cordilleran Section - 112th Annual Meeting

Paper #

Booth #

7-1

29

EOCENE BREAKOFF AND ROLLBACK OF THE FARALLON SLAB – AN EXPLANATION FOR THE “CHALLIS EVENT”?

TEPPER, Jeffrey H., Geology Dept, University of Puget Sound, 1500 N. Warner St, Tacoma, WA 98416-1048, jtepper@pugetsound.edu, jtepper@pugetsound.edu

7-2

30

NEW U-PB AGES AND ZIRCON HF ISOTOPE DATA FROM THE SOUTHERN COAST MOUNTAIN BATHOLITH AND IMPLICATIONS FOR ALONG STRIKE VARIATION IN MAGMATISM

HOMAN, Emily, California State University, Northridge, 15700 Hiawatha St, Granada Hills, CA 91344, CECIL, M. Robinson, Department of Geological Sciences, California State University Northridge, 18111 Nordhoff St, Northridge, CA 91130-8266, GEHRELS, George, Dept. of Geosciences, University of Arizona, Tucson, AZ 85721 and RUSMORE, Margaret E., Geology, Occidental College, Los Angeles, CA 90041, emily.homan.424@my.csun.edu, emily.homan.424@my.csun.edu

7-3

31

STRUCTURE AND TECTONIC ORIGIN OF THE SWAKANE GNEISS IN THE WENATCHEE BLOCK, NORTH CASCADES, WASHINGTON

GODFREY, Kari N., Department of Geology, San Jose State University, One Washington Square, San Jose, CA 95192, MILLER, Robert B., Department of Geology, San José State University, One Washington Square, San Jose, CA 95192, GORDON, Stacia M., Department of Geological Sciences, University of Nevada, Reno, 1664 N. Virginia Street, Reno, NV 89557 and SAUER, Kirsten, Department of Geological Sciences and Engineering, University of Nevada, Reno, 1664 N. Virginia Street, Reno, NV 89557, kari.godfrey@sjsu.edu, kari.godfrey@sjsu.edu

7-4

32

ALTERNATING PERIODS OF OROGENIC AND VOLCANIC SOURCES IN THE LATE TRIASSIC–EARLY JURASSIC ALDRICH MOUNTAINS GROUP, BLUE MOUNTAINS PROVINCE, EASTERN OREGON

RUSSELL, John A. and LAMASKIN, Todd A., Department of Geography and Geology, University of North Carolina Wilmington, 601 South College Rd., Wilmington, NC 28403, jar6033@uncw.edu, jar6033@uncw.edu

7-5

33

STRUCTURE AND CONSTRUCTION OF CRETACEOUS PLUTONS IN THE SONORA PASS REGION OF THE NORTH-CENTRAL SIERRA NEVADA BATHOLITH, CALIFORNIA

TURNER, Gavin W., Department of Geology, San José State University, One Washington Square, San Jose, CA 95192-0102 and MILLER, Robert B., Department of Geology, San José State University, One Washington Square, San Jose, CA 95192, gavin.turner@sjsu.edu, gavin.turner@sjsu.edu

7-6

34

STRUCTURE, CONSTRUCTION, AND EMPLACEMENT OF THE NORTHERN PART OF THE CRETACEOUS SONORA PASS INTRUSIVE SUITE, CENTRAL SIERRA NEVADA BATHOLITH, CALIFORNIA

LOEB, Kevin P., Geology Department, San Jose State University, One Washington Square, San Jose, CA 95192 and MILLER, Robert B., Department of Geology, San José State University, One Washington Square, San Jose, CA 95192, kevin.loeb@sjsu.edu, kevin.loeb@sjsu.edu

7-7

35

TUFFS OF THE GODDARD PENDANT: SNAPSHOTS OF VOLCANIC SOURCE DURING LOW-FLUX MAGMATISM IN THE SIERRA NEVADA ARC

RAFTREY, Mark E.¹, LACKEY, Jade Star¹, FULTON, Anne A.¹, GAINES, Robert R.¹ and DAVIES, Gareth R.², (1)Geology Department, Pomona College, 185 E. 6th St, Claremont, CA 91711, (2)Department of Petrology, VU University Amsterdam, De Boelelaan 1085, Amsterdam, 1081HV, Netherlands, mer42011@mymail.pomona.edu, mer42011@mymail.pomona.edu

7-8

36

DETRITAL ZIRCON GEOCHRONOLOGY OF ROOF PENDANTS IN THE FAIRVIEW QUADRANGLE AREA, SOUTHERN SIERRA NEVADA BATHOLITH, TULARE COUNTY, CALIFORNIA: INSIGHTS INTO PRE- AND SYN-MAGMATIC UPPER CRUSTAL ARCHITECTURE

CROWN, Alana M.¹, ANDREWS, Graham D.M.², BROWN, Sarah R.² and MARTINDALE, Zachary S.³, (1)Department of Geosciences, California State University, Bakersfield, 9001 Stockdale Hwy, Bakersfield, CA 93311, (2)Department of Geological Sciences, California State University Bakersfield, 9001 Stockdale Hwy, Bakersfield, CA 93311, (3)Earth and Atmospheric Sciences Department, University of Houston, 3507 Cullen Boulevard, Houston, TX 77204, alana.crown@gmail.com, alana.crown@gmail.com

7-9

37

GEOCHEMICAL ANALYSIS OF LATE CRETACEOUS INTRUSIVE ROCKS IN THE WESTERN MOJAVE DESERT, CA

BRIGHAM, Kelly Marie and VAN BUER, Nicholas J., Department of Geological Sciences, California State Polytechnic University, Pomona, 3801 W Temple Ave, Pomona, CA 91768, kmbrigham@cpp.edu, kmbrigham@cpp.edu

7-10

38

LU-HF ISOTOPIC TRENDS DURING SHALLOW SUBDUCTION AND FOUNDERING OF THE FARALLON SLAB AND THE RESULTANT MAGMATIC SWEEP ACROSS THE SOUTHWESTERN U.S

DAFOV, Michelle Nikolay, Geosciences, Gould Simpson, 1040 e 4th st, Tucson, AZ 85719, CHAPMAN, James B., Geosciences, University of Arizona, 1040 E. 4th Street, Tucson, AZ 85721 and GEHRELS, George, Dept. of Geosciences, University of Arizona, Tucson, AZ 85721, mdafov@email.arizona.edu, mdafov@email.arizona.edu

7-11

39

PETROGRAPHIC AND GEOCHEMICAL TRENDS WITHIN VOLCANIC ROCKS OF THE SIERRA MADRE OCCIDENTAL SILICIC LARGE IGNEOUS PROVINCE, CHIHUAHUA-DURANGO BORDER, NORTHERN MEXICO: INSIGHTS INTO TEMPORAL CHANGES IN PETROGENESIS

ANDERSON, Linda¹, ANDREWS, Graham D.M.¹, DAVILA-HARRIS, Pablo² and MORENO, N.¹, (1)Department of Geological Sciences, California State University Bakersfield, 9001 Stockdale Hwy, Bakersfield, CA 93311, (2)División de Geociencias Aplicadas, Instituto Potosino de Investigacion Cientifica y Technologica, Camino a la Presa San Jose 2055, San Luis Potosi, SLP, 78216, Mexico, andersonlg74@gmail.com, andersonlg74@gmail.com

7-12

40

U-PB AND ⁴⁰AR/³⁹AR GEOCHRONOLOGY OF RHYOLITIC TUFFS AND LAVAS OF THE SIERRA MADRE OCCIDENTAL SILICIC LARGE IGNEOUS PROVINCE, CHIHUAHUA AND DURANGO BORDER REGION, NORTHERN MEXICO

MORENO, N.¹, ANDREWS, Graham D.M.¹, BROWN, Sarah R.¹, DAVILA-HARRIS, Pablo², HAMES, Willis E.³ and ANDERSON, Linda¹, (1)Department of Geological Sciences, California State University Bakersfield, 9001 Stockdale Hwy, Bakersfield, CA 93311, (2)División de Geociencias Aplicadas, Instituto Potosino de Investigacion Cientifica y Technologica, Camino a la Presa San Jose 2055, San Luis Potosi, SLP, 78216, Mexico, (3)Department of Geology and Geography, Auburn University, 210 Petrie Hall, Geology, Auburn, AL 36849, nick.moreno@gmail.com, nick.moreno@gmail.com

7-13

41

STRAIN ACCOMMODATION AT DIFFERENT CRUSTAL LEVELS DURING THE DEVELOPMENT OF THE FAMATINIAN MAGMATIC ARC, ARGENTINA

RATSCHBACHER, Barbara¹, LARROVERE, Mariano A.², ALASINO, Pablo H.² and PATERSON, Scott R.¹, (1)Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, Zumberge Hall of Science (ZHS), Los Angeles, CA 90089-0740, (2)CRILAR-CONICET/INGeReN-UNLaR, Entre Ríos y Mendoza s/n, Anillaco, La Rioja, 5301, Argentina, barbara.ratschbacher@usc.edu, barbara.ratschbacher@usc.edu

7-14

42

AN ISOSTATIC MASS BALANCE MODEL OF CONTINENTAL ARCS AND ITS APPLICATION TO PALEOZOIC-MESOZOIC ARGENTINEAN CORDILLERAN OROGENIC SYSTEMS

ZHOU, Yuxin, Earth Sciences, University of Southern California, 3651 Trousdale Parkway, ZHS 117, Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089 – 0740, PATERSON, Scott, Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, ALASINO, Pablo H., CRILAR-CONICET/INGeReN-UNLaR, Entre Ríos y Mendoza s/n, Anillaco, La Rioja, 5301, Argentina, CAO, Wenrong, Department of Earth Science, Rice University, Houston, TX 77005 and RATSCHBACHER, Barbara, Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, Zumberge Hall of Science (ZHS), Los Angeles, CA 90089-0740, yuxinzho@usc.edu, yuxinzho@usc.edu

Cordilleran Section - 112th Annual Meeting - 2016

T3. Causes and Consequences of Magmatic and Tectonic Tempos in Continental and Oceanic Arcs (Posters)