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Abstracts Table of Contents Abbott, Lon, and Matt Fouch PRELIMINARY CONSTRAINTS ON VARIATIONS IN CRUSTAL COMPOSITION AND THICKNESS ACROSS THE BASIN AND RANGE-COLORADO PLATEAU TRANSITION ZONE IN WEST-CENTRAL ARIZONA USING RECEIVER FUNCTION ANALYSIS OF USARRAY DATA (Poster 104) . .1 Abers, Geoffrey, Stephane Rondenay, Kenneth Creager, Steve Malone, Aaron Wech, Zhu Zhang, Tim Melbourne, and Bradley Hacker IMAGING SUBDUCTION, EPISODIC TREMOR AND SLIP IN THE PACIFIC NORTHWEST: CASCADIA ARRAYS FOR EARTHSCOPE (CAFE) (Poster 50) . .2 Allen, Richard, and Mei Xue CONVECTIVE INTERACTIONS IN THE MANTLE BENEATH THE PACIFIC NORTHWEST: THE FATE OF THE JUAN DE FUCA PLATE (Poster 107) . .3 Almeida, Rafael, Judith Chester, and Frederick Chester SIMILARITY OF PALEOSTRESS AND IN SITU STRESS AT SAFOD AND IMPLICATIONS FOR A WEAK SAN ANDREAS FAULT (Poster 33) . .4 Alvarez, Marcos, Jim Fowler, Eliana Arias, and Noel Barstow THE FLEXIBLE ARRAY COMPONENT OF USARRAY; INSTRUMENTS FOR FOCUSED STUDIES (Poster 180) . .5 Anderson, Greg, PBO Data Management Team, Mike Jackson, and Chuck Meertens THE PLATE BOUNDARY OBSERVATORY: DATA MANAGEMENT PROGRESS AND HIGHLIGHTS (Poster 182) . .6 Anderson, Kyle, and Paul Segall TIME-DEPENDENT FINITE ELEMENT MODELING OF EFFUSIVE SILICIC ERUPTIONS (Poster 5) . .7 Andreatta, Victoria, Dave Stowers, Oivind Ruud, and Steve Fisher NASA CONTRIBUTION TO THE EARTHSCOPE PROJECT (Poster 181) . .8 Apel, Edwin, and Roland Burgmann GPS AND PLATE TECTONICS: WHAT ARE WE MEASURING? (Poster 168) . .9 Arrowsmith, Ramon • GEOEARTHSCOPE AND RELATED TOPOGRAPHIC LIDAR DATASETS IN THE CLASSROOM: LESSONS ABOUT GEOMORPHOLOGY, DIGITAL ELEVATION a MODELS, AND CYBERINFRASTRUCTURE (Poster 78) . 10 • Babaie, Hassan, and Jafar Hadizadeh SPATIAL AND PROCESS ONTOLOGIES FOR BRITTLE SHEAR ZONES: SAFOD PROJECT (Poster 27) . 11 Bedle, Heather, and Suzan van der Lee PROGRESS ON A NEW REGIONAL MODEL OF THE UPPER MANTLE S-VELOCITY STRUCTURE BENEATH THE NORTH AMERICAN CONTINENT (Poster 58) . 12 Beghein, Caroline, Matthew Fouch, and J. Arthur Snoke UPPER MANTLE SEISMIC VELOCITY STRUCTURE IN THE GREAT BASIN (Poster 77) . 13 Bennett, Rick INSTANTANEOUS SLIP RATES FROM GEOLOGY AND GEODESY (Poster 126) . 14 Benthien, Mark SCEC COMMUNICATION, EDUCATION, AND OUTREACH PROGRAM (Poster 83) . 15 Blackburn, Terrence, Samuel Bowring, Frank Dudas, and James Crowley GEO/THERMOCRHONOLOGY OF LOWER CRUSTAL XENOLITHS FROM MONTANA : IMPLICATIONS FOR THE STRUCTURE AND EVOLUTION OF NORTH AMERICAN LITHOSPHERE (Poster 129) . 16 Blewitt, Geoffrey PLATE BOUNDARY OBSERVATORY ANALYSIS USING THE AMBIZAP GPS PROCESSING ALGORITHM (Poster 166) . 17 Block, Karin, Kerstin Lehnert, and Mihai Ducea EARTHChem’s DEEP LITHOSPHERE DATASET: WEB-BASED ACCESS TO MANTLE XENOLITH GEOCHEMISTRY AND PETROLOGY (Poster 127) . 18 Bohnenstiehl, Kyle, Keegan Fengler, and Chelsea Jarvis LAND USE PERMITTING OF THE PLATE BOUNDARY OBSERVATORY COMPONENT OF THE EARTHSCOPE PROJECT (Poster 184) . 19 Bradbury, Kelly, James Evans, Sarah Draper, Corey Barton, and John Solum ANALYSES OF SIDEWALL CORES AND CUTTINGS FROM A DEEPER SECTION OF THE SAFOD BOREHOLE (Poster 25) . 20 Brocher, Tom, Brad Aagaard, Bill Ellsworth, Steve Hickman, Diane Moore, Jessica Murray, Carol Prentice, and Arthur Rodgers CONTRIBUTIONS OF EARTHSCOPE TO EARTHQUAKE HAZARD ASSESSMENT IN NORTHERN CALIFORNIA (Poster 10) . 21 Brown, Kevin, David Chadwell, Uwe Send, and Mike Tryon A MOORED GEODETIC SEAFLOOR MONITORING SYSTEM (GEOCE) (Poster 178) . 22 Burdick, S., C. Li, V. Martynov, T. Cox, J. Eakins, L. Astiz, F.L. Vernon, and R.D. van der Hilst TRAVEL TIME TOMOGRAPHY WITH USARRAY DATA (Poster 62) . 23 Butler, Robert, Roger Groom, Charles Ault Jr., Bonnie Magura, Jenda Johnson, and Chris Hedeen INTEGRATING EARTHSCOPE WITH REGIONAL GEOLOGY AND GEOLOGIC HAZARDS: LESSONS LEARNED FROM TEACHERS ON THE LEADING EDGE (Poster 89) . 24 Byerly, Katrina, Thomas J. Owens, Philip Crotwell, Hersh Gilbert, George Zandt, and Craig Jones EARS AND THE BULK CRUSTAL PROPERTIES OF THE SIERRA NEVADA (Poster 70). 25 Calkins, Josh, George Zandt, and Ken Dueker OFFSET OF A BRIGHT, SHALLOW MOHO ACROSS THE COAST SHEAR ZONE IN THE COAST MOUNTAINS BATHOLITH, 52°-56° N (Poster 65) . 26 Cardon, Keith, Elizabeth Anthony, Minghua Ren, Robert Stern, Randy Keller, and Urmidola Raye INTERPRETATION OF SEISMIC STRUCTURE FROM MANTLE XENOLITHS: CIMA VOLCANIC FIELD - WALKER LANE (CA), SAN CARLOS VOLCANIC FIELD - BASIN AND RANGE (AZ), POTRILLO VOLCANIC FIELD - RIO GRANDE RIFT (NM), AND KNIPPA QUARRY - BALCONES IGNEOUS PROVINCE (TX) (Poster 128) . 27 Carpenter, Brett, Andrew Rathbun, Demian Saffer, and Chris Marone EARLY INSIGHTS INTO THE MECHANICAL BEHAVIOR OF MATERIALS INTHE 3D SAFOD VOLUME (Poster 42) . 28 Chang, Wu-Lung Chang, Robert Smith, Chuck Wicks, Jamie Farrell, and Christine Puskas ACCELERATED UPLIFT OF THE YELLOWSTONE CALDERA, 2004-2006, FROM GPS AND INSAR OBSERVATIONS (Poster 1). 29 Coblentz, David, Karl Karlstrom, and Jolante van Wijk INFLUENCES ON THE TOPOGRAPHIC CHARACTER OF THE WESTERN U.S.: SPECULATIONS ON THE ROLE OF INHERITED STRUCTURES, PLATE MOTION, AND UPPER MANTLE PROPERTIES (Poster 116) . 30 Cochran, Elizabeth, YongGang Li, Peter Shearer, John Vidale, and Yuri Fialko • SEISMIC EVIDENCE FOR A WIDE DAMAGE ZONE AT THE CALICO FAULT, CALIFORNIA (Poster 36) . 31 b Coyle, Brian, Andre Basset, Todd Williams, Doerte Mann, Adam Woolace, and Karl Feaux • GPS INSTALLATION PROGRESS IN THE NORTHERN CALIFORNIA REGION OF THE PLATE BOUNDARY OBSERVATORY (Poster 186) . 32 Creager, Kenneth, Aaron Wech, Stephen Malone, Geoffrey Abers, Stephane Rondenay, Tim Melbourne, Bradley Hacker, and Zhu Zhang LOCATING CASCADIA DEEP TREMOR USING ENVELOPE CROSS CORRELATION (Poster 52) . 33 Crosby, Christopher, Ramon Arrowsmith, Efrat Frank, Viswanath Nandigm, Han Kim, Ashraf Memon, Chaitan Baru, and Newton Alex THE GEON LIDAR WORKFLOW AS A DISTRIBUTION PATHWAY FOR FORTHCOMING GEOEARTHSCOPE LIDAR DATASETS (Poster 125) . 34 Davis, James, and Robert Smalley SEISMIC ARRAY PROCESSING WITH HIGH RATE GPS DATA (Poster 167) . 35 Dingler, Jeffrey, Graham Kent, Neal Driscoll, Gordon Seitz, Jeff Babcock, Alistar Harding, Bob Karlin, and Charles Goldman A HIGH RESOLUTION SEISMIC CHIRP INVESTIGATION OF ACTIVE FAULTING ACROSS LAKE TAHOE, AT THE WESTERN EDGE OF THE WALKER LANE. 36 Doan, Mai Linh, and Emily Brodsky CHANGES IN TIDAL RESPONSE OF PORE PRESSURE DATA OF PBO BOREHOLES (Poster 48) . 37 Dorr, Perle, Robert Busby, Matt Mercurio, and John Taber SITE RECONNAISSANCE AND OUTREACH ACTIVITIES FOR THE TRANSPORTABLE ARRAY (Poster 79) . 38 Draper, Sarah, James Evans, Kelly Bradbury, Laird Thompson, Jon Garver, and David Kirschner PETROLOGIC AND TECTONIC ANALYSES OF EOCENE [?] ROCKS WEST OF THE SAN ANDREAS FAULT, SAFOD (Poster 26). 39 Draper, Sarah, Kelly Bradbury, and James Evans STRUCTURAL ANALYSIS OF THE SAN ANDREAS FAULT ZONE IN THE SAFOD BOREHOLE (Poster 23) . 40 Dreger, Douglas, Robert Nadeau, and Angela Morrish KINEMATIC MODELING OF THE SAFOD TARGET EVENTS (Poster 12) . 41 Eagar, Kevin, and Matthew Fouch UPPER MANTLE VELOCITY DISCONTINUITY STRUCTURE BENEATH THE PACIFIC NORTHWEST, UNITED STATES FROM PS CONVERTED PHASES (Poster 66). 42 Eakins, Jennifer, Frank Vernon, Vladik Martynov, Luciana Astiz, Robert Newman, and Trilby Cox THE EARTHSCOPE USARRAY ARRAY NETWORK FACILITY (ANF): METADATA, NETWORK AND DATA MONITORING, AND QUALITY ASSURANCE (Poster 153) . 43 Ellsworth, William BROADBAND SEISMOLOGY AT THE BLUE END OF THE SPECTRUM: OPPORTUNITIES AND CHALLENGES FOR EARTHSCOPE SCIENCE (Speaker). 44 Faria, Charley, Carlos Rios, and John DeLaughter AN ONGOING PROJECT TO TRANSLATE EARTHSCOPE EDUCATION AND OUTREACH MATERIALS TO SPANISH (Poster 92) . 45 Farrell, Jamie, Robert Smith, and Greg Waite TEMPORAL STRESS VARIATIONS OF THE YELLOWSTONE VOLCANIC SYSTEM: SEISMIC AND MAGMATIC CONTRIBUTIONS (Poster 2) . 46 Fay, Noah, and Gene Humphreys VARIABLE FAULT STRENGTH AND CRUSTAL BLOCK INTERACTIONS IN THE WESTERN UNITED STATES: INSIGHTS FROM DYNAMIC MODELING OF THE SIERRA NEVADA BLOCK (Poster 117) . 47 Feaux, Karl, Mike Jackson, Dave Mencin, Ben Pauk, Katrin Hafner, Brian Coyle, Chris Walls, and Barrett Friesen PBO FACILITY CONSTRUCTION: GPS NETWORK STATUS (Poster 183) . 48 Fialko, Yuri SPACE GEODETIC IMAGING OF DEFORMATION DUE TO ACTIVE FAULTS THROUGHOUT THE EARTHQUAKE CYCLE (Speaker) . 49 Fillerup, Melvin, James Knapp, and Camelia Knapp HIGH RESOLUTION POTENTIAL OF THE EARTHSCOPE FLEXIBLE ARRAY: AN IMAGE OF CONTINENTAL DELAMINATION IN THE ROMANIAN EASTERN CARPATHIANS (Poster 143) . 50 Fitzenz, Delphine, Stephen Hickman, Chris Spiers, and Andre Jalobeanu PROBABILISTIC MODELING OF EARTHQUAKE OCCURRENCE: FIRST EXAMPLES OF DATA INTEGRATION WITHIN A BAYESIAN FRAMEWORK (Poster 11) . 51 Flesch, Lucy, William Holt, and John Haines DRIVING FORCES OF THE WESTERN NORTH AMERICAN PLATE BOUNDARY ZONE (Speaker) (Poster 112) . 52 Fouch, Matthew ASTHENOSPHERIC DYNAMICS OF THE PACIFIC NORTHWESTERN UNITED STATES (Poster 108) . 53 Webb, Frank, Yehuda, Bock, Kedar Sharon, Jamason Paul, Dong Danan, Chang Reuy-juin, Newport Brian, and Fang Peng • EARTH SCIENCE COMMUNITY IT RESOURCES THROUGH A UNIFIED DATA AND ANALYSIS PORTAL (Poster 163) . 54 c Frassetto, Andy, George Zandt, Hersh Gilbert, Owen Hurd, Ian Bastow, Tom Owens, and Craig Jones • SEISMIC ANISOTROPY OF THE LOWER CRUST IN THE CENTRAL SIERRA NEVADA (Poster 69) . 55 Friesen, Barrett, Fred Jenkins, David Kasmer, and Karl Feaux PBO FACILITY CONSTRUCTION: BASIN AND RANGE AND ROCKY MOUNTAIN REGIONS STATUS (Poster 188) . 56 Fuis, Gary, Victoria Langenheim, Daniel Scheirer, and Monica Kohler THE SAN ANDREAS
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    Earth-Science Reviews 73 (2005) 245–270 www.elsevier.com/locate/earscirev Upper Neogene stratigraphy and tectonics of Death Valley — a review J.R. Knott a,*, A.M. Sarna-Wojcicki b, M.N. Machette c, R.E. Klinger d aDepartment of Geological Sciences, California State University Fullerton, Fullerton, CA 92834, United States bU. S. Geological Survey, MS 975, 345 Middlefield Road, Menlo Park, CA 94025, United States cU. S. Geological Survey, MS 966, Box 25046, Denver, CO 80225-0046, United States dTechnical Service Center, U. S. Bureau of Reclamation, P. O. Box 25007, D-8530, Denver, CO 80225-0007, United States Abstract New tephrochronologic, soil-stratigraphic and radiometric-dating studies over the last 10 years have generated a robust numerical stratigraphy for Upper Neogene sedimentary deposits throughout Death Valley. Critical to this improved stratigraphy are correlated or radiometrically-dated tephra beds and tuffs that range in age from N3.58 Ma to b1.1 ka. These tephra beds and tuffs establish relations among the Upper Pliocene to Middle Pleistocene sedimentary deposits at Furnace Creek basin, Nova basin, Ubehebe–Lake Rogers basin, Copper Canyon, Artists Drive, Kit Fox Hills, and Confidence Hills. New geologic formations have been described in the Confidence Hills and at Mormon Point. This new geochronology also establishes maximum and minimum ages for Quaternary alluvial fans and Lake Manly deposits. Facies associated with the tephra beds show that ~3.3 Ma the Furnace Creek basin was a northwest–southeast-trending lake flanked by alluvial fans. This paleolake extended from the Furnace Creek to Ubehebe. Based on the new stratigraphy, the Death Valley fault system can be divided into four main fault zones: the dextral, Quaternary-age Northern Death Valley fault zone; the dextral, pre-Quaternary Furnace Creek fault zone; the oblique–normal Black Mountains fault zone; and the dextral Southern Death Valley fault zone.
  • National Monuments and the Forest Service

    National Monuments and the Forest Service

    NATIONAL MONUMENTS AND THE FOREST SERVICE Gerald W. Williams, Ph.D., (Retired) USDA Forest Service Washington, DC National monuments are areas of federal land set aside by the Congress or most often by the president, under authority of the American Antiquities Act of June 8, 1906, to protect or enhance prominent or important features of the national landscape. Such important national features include those land areas that have historic cultural importance (sites and landmarks), prehistoric prominence, or those of scientific or ecological significance. Today, depending on how one counts, there are 81 national monuments administered by the USDI National Park Service, 13 more administered by the USDI Bureau of Land Management (BLM), five others administered by the USDA Forest Service, two jointly managed by the BLM and the National Park Service, one jointly administered by the BLM and the Forest Service, one by the USDI Fish & Wildlife Service, and another by the Soldiers’ and Airmen’s Home in Washington, D.C. In addition, one national monument is under National Park Service jurisdiction, but managed by the Forest Service while another is on USDI Bureau of Reclamation administered land, but managed by the Park Service. The story of the national monuments and the Forest Service also needs to cover briefly the creation of national parks from national forest and BLM lands. More new national monuments and national parks are under consideration for establishment. ANTIQUITIES ACT OF 1906 Shortly after the turn of the century, many citizens’ groups and organizations, as well as members of Congress, believed it was necessary that an act of Congress be passed to combat the increasing acts of vandalism and even destruction of important cultural (historic and prehistoric), scenic, physical, animal, and plant areas around the country (Rothman 1989).
  • Seismic Imaging Using Earthquakes and Implications for Earth Systems

    Seismic Imaging Using Earthquakes and Implications for Earth Systems

    Seismic imaging using earthquakes and implications for earth systems 123* 2 3 3 3 Huaiyu Yuan , Mike Dentith , Ruth Murdie , Simon Johnson and Klaus Gessner * Currently in a week-long meeting in San Francisco. 1 2 3 [email protected] CCFS, Macquarie University; CET-UWA; GSWA Email [email protected] for questions. Or spend a good 15 mintues reading it through! 1. Lithosphere control of the mineral systems and seismic imaging 6. Capricorn passive source project How giant magma-related ore systems form is vigorously debated. One view, displayed below, argues ascending magmas pick up ore-forming compo- The Capricorn orogen is a major tectonic unit that recorded the assembly of the Yil- nents (diamonds, gold) during their passage through the mantle lithosphere (Griffin et al., Nature Geoscience, 2013): e.g. garn and Pilbara cratons and the Proterozoic terranes to form the West Australian (a) diamonds, formed deep from metasomatically introduced carbon zones, are brought to surface in magmas that take advantage of lithospheric scale craton (a; e.g. Johnson et al. 2013). Numerous mineral deposit types have been rec- weak zones; and ognized throughout the orogen, and recent studies (Johnson et al. 2013; Aitken et (b) Au- and Cu-rich deposits are found in the back-arc and the mantle wedge, which are associated with low-degree and hi-degree melting, respectively. al. 2013) have illustrated the connection between known mineral deposits and the crustal scale fault systems and corresponding crustal blocks (b). In all cases lithospheric scale weak zones facilitate the movement of metal-bearing fluids to the surface.