Session: Reconstructing the Pacific-North America Plate Boundary Through Late Cenozoic Time (Posters) (Cordilleran Section

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EARLY TO MIDDLE MIOCENE SYN-EXTENSIONAL MAGMATISM IN THE SOUTHERN GULF OF CALIFORNIA

DUQUE, Jose¹, FERRARI, Luca², LOPEZ MARTINEZ, Margarita³, OROZCO ESQUIVEL, Maria Teresa² and LONSDALE, Peter⁴, (1)Centro de Geociencias, Universidad Nacional Autonoma de Mexico (UNAM), Campus Juriquilla, Blvd. Juriquilla 3001, Queretaro, 76230, Mexico, (2)Centro de Geociencias, Universidad Nacional Autonoma de Mexico, Campus Juriquilla, Blvd. Juriquilla 3001, Queretaro, 76230, Mexico, (3)Centro de Investigaciones Cientificas y Educacion Superior de Ensenada, Km. 107 Carrertera Tijuana-Ensenada, Ensenada, Baja California Norte, Mexico, (4)Scripps Institution of Oceanography, UCSD, 9500 Gilman Drive, La Jolla, CA 92093, jduquetr@gmail.com, jduquetr@gmail.com

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BREACHING OF TRANSFORM FAULTS AND FLOODING OF PULL-APART BASINS TO INCREMENTALLY FORM THE EARLY GULF OF CALIFORNIA SEAWAY FROM ~8 TO 6.3 MA

UMHOEFER, Paul J.¹, SKINNER, Lisa A.², BENNETT, Scott E.K.³, OSKIN, Michael E.³, DORSEY, Rebecca⁴ and DARIN, Michael H.⁵, (1)School of Earth Sciences & Environmental Sustainability, Northern Arizona University, 625 Knoles Drive, Box 4099, Flagstaff, AZ 86011, (2)School of Earth Sciences and Environmental Sustainability, Geology Program, Northern Arizona University, PO Box 4099, Flagstaff, AZ 86011, (3)Department of Geology, University of California, Davis, One Shields Avenue, Davis, CA 95616, (4)Department of Geological Sciences, University of Oregon, Eugene, OR 97403, (5)ConocoPhillips Co, 600 North Dairy Ashford Rd, 3064 Dubai, Houston, TX 77079, paul.umhoefer@nau.edu, paul.umhoefer@nau.edu

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PROVENANCE AND GEOCHEMISTRY OF SEDIMENTS IN THE NORTHERN GULF OF CALIFORNIA: RESULTS FROM A DEEP STRATIGRAPHIC RECORD FROM WELL SAMPLES

LOMTATIDZE-JIMENEZ, Ekaterina, Departamento de Geologia, CICESE, Carretera Ensenada-Tijuana 3918, Zona Playitas, Ensenada, 22860, Mexico, MARTIN-BARAJAS, Arturo, Div. Ciencias de la Tierra, CICESE, PO Box 430222, San Diego, CA 92143--0222, WEBER, Bodo, Departamento de Geología, CICESE, Carretera Ensenada-Tijuana No. 3918, Zona Palyitas, Ensenada, B.C, 22860, Mexico and PÉREZ-ARVIZU, Ofelia, Centro de Geociencias, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Juriquilla, 76230, Mexico, elomtati@cicese.edu.mx, elomtati@cicese.edu.mx

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MAJOR BUTTRESS DISCONFORMITY WITHIN THE MIOCENE SPLIT MOUNTAIN GROUP, SALTON TROUGH, SOUTHERN CALIFORNIA

PARKER, Michael Paul, Department of Geological and Environmental Sciences, California State University, Chico, 400 West First Street, Chico, CA 95929 and BYKERK-KAUFFMAN, Ann, Geological and Environmental Sciences, California State Univ, Chico, 400 W. 1st St, Chico, CA 95929-0205, michaelpparker@sbcglobal.net, michaelpparker@sbcglobal.net

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UPDATED FIELD MAPPING IN THE LAVA HILLS, SAN BERNARDINO COUNTY, CALIFORNIA

PRICE, Jason B.¹, HARVEY, Janet C.¹, HAMON, Jennifer L.¹ and STOCK, Joann M.², (1)Division of Geological and Planetary Sciences, California Institute of Technology, MC 100-23, Pasadena, CA 91125, (2)Seismological Laboratory, California Institute of Technology, 1200 E California Blvd, MC 252-21, Pasadena, CA 91125, jprice@caltech.edu, jprice@caltech.edu

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EVIDENCE OF SYNEXTENSIONAL DEPOSITION OF THE PICKHANDLE AND JACKHAMMER FORMATIONS IN THE NORTHERN CALICO MOUNTAINS, CENTRAL MOJAVE DESERT, CALIFORNIA

MURRAY, Bryan P., Department of Earth Science, University of California, Santa Barbara, Webb Hall, BLDG 526, Santa Barbara, CA 93106-9630, bmurray@umail.ucsb.edu, bmurray@umail.ucsb.edu

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REVISED ALQUIST-PRIOLO EARTHQUAKE FAULT ZONE MAP FOR THE WHITTIER FAULT, YORBA LINDA 7.5’ QUADRANGLE, ORANGE COUNTY, CALIFORNIA

HERNANDEZ, Janis L., California Geological Survey, 320 W. 4th Street, Suite 850, Los Angeles, CA 90013, Janis.Hernandez@conservation.ca.gov, Janis.Hernandez@conservation.ca.gov

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PROGRESS TOWARD UNDERSTANDING THE STRATIGRAPHY AND RIGHT-LATERAL DISPLACEMENT OF UPPER MIOCENE ROCKS ALONG THE SAN ANDREAS FAULT IN CENTRAL CALIFORNIA

STANLEY, Richard G., U.S. Geological Survey, 345 Middlefield Road, MS 969, Menlo Park, CA 94025, BARRON, John A., U.S. Geological Survey, 345 Middlefield Road, MS 910, Menlo Park, CA 94025, POWELL II, Charles L., U.S. Geological Survey, 345 Middlefield Road, MS 975, Menlo Park, CA 94025, GRAYMER, Russell W., U. S. Geological Survey, 345 Middlefield Road, MS 973, Menlo Park, CA 94025 and BRABB, Earl E., (deceased), U.S. Geological Survey, 345 Middlefield Road, MS 975, Menlo Park, CA 94025, rstanley@usgs.gov, rstanley@usgs.gov

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TESTING THE STRUCTURAL ROLE OF THE SANTA MARIA BASIN IN THE ROTATION OF THE WESTERN TRANSVERSE RANGES, CALIFORNIA

GUILLAUME, Jonathan Kalani, California State University Long Beach, 1250 Bellflower Blvd, Long Beach, CA 90840, kalaniguillaume@yahoo.com, kalaniguillaume@yahoo.com

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LANDFORMS AND TECTONICS OF THE CENTRAL COAST REGION OF CALIFORNIA

HAMILTON, Douglas H., 2 Bassett Lane, Atherton, CA 94027, dhhgeoconsult@hotmail.com, dhhgeoconsult@hotmail.com

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GEOPHYSICAL AND SEDIMENTOLOGIC EVIDENCE FOR PLIO-PLEISTOCENE DEFORMATION IN THE OFFSHORE SAN ANDREAS FAULT ZONE BETWEEN GUALALA AND SAN FRANCISCO, NORTHERN CALIFORNIA

GROVE, Karen, Department of Geosciences, San Francisco State Univ, 1600 Holloway Ave, San Francisco, CA 94132 and STOZEK, Brian, Geometrics, 2190 Fortune Dr, San Jose, CA 95131, kgrove@sfsu.edu, kgrove@sfsu.edu

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GEOMORPHIC AND STRUCTURAL ANALYSIS OF THE VERONA-WILLIAMS-PLEASANTON FAULT ZONE AND IMPLICATIONS FOR SEISMIC HAZARD, EASTERN SAN FRANCISCO BAY AREA, CALIFORNIA

HOIRUP Jr, Don F., California Department of Water Resources, Division of Engineering, Project Geology Section, 3500 Industrial Blvd, West Sacramento, CA 95697, SAWYER, Thomas L., Piedmont GeoSciences, Inc, 10235 Blackhawk Drive, Reno, NV 89508 and UNRUH, Jeffrey, Lettis Consulting International, 1981 No. Broadway, Suite 330, Walnut Creek, CA 94596, don.hoirup@water.ca.gov, don.hoirup@water.ca.gov

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LIDAR-BASED MAPPING OF LATE QUATERNARY FAULTING, GRIZZLY VALLEY FAULT WALKER LANE SEISMIC BELT, PLUMAS COUNTY, CALIFORNIA

HOIRUP Jr, Don F., California Department of Water Resources, Division of Engineering, Project Geology Section, 3500 Industrial Blvd, West Sacramento, CA 95697 and HITCHCOCK, Christopher, San Francisco, CA 94103, don.hoirup@water.ca.gov, don.hoirup@water.ca.gov

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CORRELATION AND ANALYSIS OF PALEOCHANNELS IN THE SIERRA NEVADA, CALIFORNIA, AS DISPLAYED BY THE STANISLAUS GROUP; TOWARDS UPDATING LATE CENOZOIC UPLIFT ESTIMATES

JONES, Shelby A., Department of Earth & Environmental Sciences, California State University, Fresno, 2576 E. San Ramon Ave., Mail Stop ST-24, Fresno, CA 93740, PLUHAR, Christopher J., Earth & Environmental Sciences Dept, California State University, Fresno, 2576 E. San Ramon Ave., Mail Stop ST-24, Fresno, CA 93740 and FARNER, Michael, Department of Earth Science, Rice University, 6100 Main Street MS-126, Houston, TX 77005, shelbyjones@mail.fresnostate.edu, shelbyjones@mail.fresnostate.edu

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ONE VERSUS TWO LATE CENOZOIC UPLIFT EVENTS, SIERRA NEVADA, CALIFORNIA, RECORDED IN DRAINAGE GEOMORPHOLOGY

CARLSON, Chad W., Nevada Bureau of Mines and Geology, University of Nevada, Reno, NV 89557-0178 and WAKABAYASHI, John, Department of Earth and Environmental Sciences, California State University, Fresno, CA 93740, ameanchad@hotmail.com, ameanchad@hotmail.com

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LATE NEOGENE DEPOSITION IN THE LAST CHANCE RANGE, EASTERN CALIFORNIA

KNOTT, Jeffrey R.¹, MANOUKIAN, David¹, NUNEZ Jr, Ernest¹, WHITMER, Daniel¹, HATHAWAY, Jeffrey¹, REHEIS, M.C.², WAN, Elmira³, LACKEY, Jade Star⁴ and DEINO, Alan⁵, (1)Department of Geological Sciences, California State Univ, Fullerton, Box 6850, Fullerton, CA 92834, (2)U.S. Geol. Survey, MS 980, Federal Center, Denver, CO 80225, (3)U.S. Geological Survey, 345 Middlefield Rd, MS-975, Menlo Park, CA 94025, (4)Geology Department, Pomona College, Claremont, CA 91711, (5)Berkely Geochronology Lab, 2455 Ridge Road, Berkeley, CA 94709, jknott@fullerton.edu, jknott@fullerton.edu

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FAULT SCARP MORPHOLOGY ALONG THE EUREKA VALLEY FAULT ZONE, EASTERN CALIFORNIA, U.S.A

NUNEZ Jr, Ernest¹, KNOTT, Jeffrey R.¹, ZEPEDA, Anthony¹ and SCHLOM, Tyanna M.², (1)Department of Geological Sciences, California State Univ, Fullerton, Box 6850, Fullerton, CA 92834, (2)Geological Sciences, California State University, Fullerton, McCarthy Hall 254, P.O. Box 6850, Fullerton, CA 92834-6850, ehnunez@csu.fullerton.edu, ehnunez@csu.fullerton.edu

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KINEMATICS OF DEFORMATION IN WEST-CENTRAL WALKER LANE; PALEOMAGNETIC TESTING OF FAULT-BLOCK ROTATION AND DOMING MODELS, EASTERN CALIFORNIA AND WESTERN NEVADA

FREDRICKSON, Shelby M.¹, LINDEMAN, Justin R.¹, PLUHAR, Christopher J.² and CARLSON, Chad W.³, (1)Department of Earth & Environmental Sciences, California State University, Fresno, 2576 E. San Ramon Ave., Mail Stop ST-24, Fresno, CA 93740, (2)Earth & Environmental Sciences Dept, California State University, Fresno, 2576 E. San Ramon Ave., Mail Stop ST-24, Fresno, CA 93740, (3)Nevada Bureau of Mines and Geology, University of Nevada, Reno, Reno, NV 89557, speck@mail.fresnostate.edu, speck@mail.fresnostate.edu

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JUST WHERE IS THE NORTHERN TERMINATION OF THE WALKER LANE? POSSIBLE ASSOCIATIONS TO DEXTRAL OBLIQUE-STRIKE SLIP FAULTING IN NORTHERN CALIFORNIA AND SOUTHEASTERN OREGON

MAKOVSKY, Kyle A., Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725, kylemakovsky@u.boisestate.edu, kylemakovsky@u.boisestate.edu

Cordilleran Section - 109th Annual Meeting (20-22 May 2013)

T10. Reconstructing the Pacific-North America Plate Boundary Through Late Cenozoic Time (Posters)