Actively Funded Research
$1,722,425.00
(sorted by start date)
International Workshop on Electromagnetic (EM) Inductional in the Earth in Beijing, China George Jiracek
Education and Outreach Web Site Development for the CSSC Rob Mellors and Eric Frost
Equipment - Mapping Tools Eric Frost
Characterization Data for Google Earth Client Eric Frost and Robert Welty
A Multi-faceted Exploration of Late Paleozoic Communities Lindsey Leighton, Jared Morrow, and Stephen Schellenberg
A Petascale Cyberfacility for Physics-based Seismic Hazard Analysis Steven Day and Kim Bak Olsen
Stratigraphy and Structure of the Miocene Bear Canyon Conglomerate, Imperial County, SE California: Implications for the Timing of Formation of the Chocolate Mountains Anticlinorium Gary Girty
Stress Changes, Earthquakes and Mud Volcanoes Rob Mellors
Confirming and Extending the Holocene Event History at Hog Lake, San Jacinto Fault: Testing San Andreas-San Jacinto Fault Interactions Thomas Rockwell and Gordon Seitz
Inversion for Rupture Dynamics Parameters Kim Bak Olsen and Steven Day
Collaborative Research: Hawaiian Plume Heterogeneity Revealed by Kilauea's Ongoing Eruption, Prehistoric Lavas and Olivine-Hosted Melt Inclusions Aaron Pietruszka
Development of a Long-term Earthquake Record at the South End of the San Andreas Fault Gordon Seitz
Development of a Long-term Earthquake Record at the South End of the San Andreas Fault Patrick Williams and Gordon Seitz
Physical Limits on Ground Motion from Ruptures on Non-planar Faults with Off-fault Damage Steven Day
SoSAFE: Confirming and Extending the Event Record at Hog Lake, San Jacinto Fault Thomas Rockwell
Depth Characterization of Pulverized Granite Along the San Andreas Fault Thomas Rockwell
Testing for Time-variable Loading from Slip Rates of the San Jacinto Fault System Thomas Rockwell
Refurbishment, Replacement, and Relocation of SCEC Trench Shoring Thomas Rockwell
Using 226Ra-230Th-238U Disequilibria to Test the Hypothesis of Peridotite-Pyroxenite Melt Mixing at Hawaiian Shield Volcanoes Aaron Pietruszka
Collaborative Research: Chemical, Isotopic and Volatile Constraints on the Evolution of the Lau Basin Barry Hanan
Enabling Earthquake System Science Through Petascale Calculations (PetaShake) Kim Bak Olsen and Steven Day
Research Experiences for Undergraduates George Jiracek
3-D and 2-D Modeling of Strong Ground Motion from an M 7.0 Earthquake on the Salt Lake City Segment of the Wasatch Fault, Utah: Collaborative Research with San Diego State University and the University of Utah Kim Bak Olsen
Conditions of Occurrence of the Tien-Shan Earthquakes According to the Data of Earthquake Mechanisms Rob Mellors
A Petascale Cyberfacility for Physics-based Seismic Hazard Analysis Luis Dalguer-Gudiel
SAGE (Summer of Applied Geophysical Experience) Supplement George Jiracek
High-resolution Seismic Velocity and Attenuation Models of the Caucasus-Caspian Region Rob Mellors
Forward and Inverse Modeling of Rupture Dynamics in Three Dimensions Kim Bak Olsen
Student Research
Hydrological investigations of the Santo Domingo Basin, New Mexico using electromagnetic soundings Joshua Woodworth
Testing the application and precision of optically stimulated luminescence on dating lacustrine shorelines in the Imperial Valley, southern California Caitlin Lippincott
Geochemistry and U/Pb geochronology of the eastern-most Peninsular Ranges batholith of southern California and northern Baja California; implications for magmatism and tectonics at the onset of the Laramide orogeny Robert Moniz
Correlation of static and peak dynamic coulomb failure stress with mainshocks, aftershocks, seismicity rate change, and triggered slip in the salton trough Jeff Eddo
A Geomagnetic Survey in Santee, California Henry Schaeffer
Biotic response of deep-ocean ostracodes across the Paleocene-Eocene boundar Elizabeth Landau
A Morphometric Approach to Competition in Ordovician Brachiopods Carrie Tyler
Geochemical, petrological, and grain size analysis of the Santa Margarita River sand bar deposits Brandon Koons
Hydrogeology of Lee Valley, Jamul, CA Jeremy Jensen
Cenozoic changes in the South Atlantic Carbonate Compensation Depth: Constraints from Ocean Drilling Site 1262 (Walvis Ridge) Diego Almanza and Tina Baynes
Provenance of quartzite clasts from the Upper Cretaceous Cabrillo Formation, San Diego County, California John Abeid
Geochemistry and Petrogenesis of the Jacumba Volcanics, California Maureen Moses
Utilizing Remote Sensing to Estimate Seismic Hazards within the Panama Region Andy Arifandy
Mineralogical and textural changes accommodating the production of saprolite from a dioritic corestone in a Mediterranean climate, Peninsular Ranges, southern California Chris Martinez
The Death and Rebirth of Kilauea’s Magma Chamber 2.8 - 1.1 kyr Before Present Inferred from the Major- and Trace-Element Chemistry of the Uwekahuna Ash Kyle Welchans
Testing the use of GPR to detect clandestine graves in a San Diego soil Luke Zimmerman
Evaluating the robustness of Mytilus californianus skeletal chemistry as an paleoenvironmental archive: Effects of microenvironment and ontogeny Heather Ford
University of California San DiegoMulti-method Paleoseismology: Characterizing the Activity of the West Tahoe Fault On and Offshore.
University of Utah Construction and Verification of a Wasatch Front Community Velocity Model and 3-D and 2-D Modeling of Strong Ground Motion from an M 7.0 Earthquake on the Salt Lake City Segment of the Wasatch Fault, Utah.
William AssociatesMulti-method Paleoseismology: Characterizing the Activity of the West Tahoe Fault On and Offshore.
Research Highlight
A plume-triggered delamination origin for the Columbia River Basalt Group
The Columbia River Basalt Group reveals a complete and detailed stratigraphic succession to assess the interplay of lithospheric and asthenospheric processes. This record of chemical change through time is used to evaluate genetic models for Columbia River Basalt volcanism. We recognize four primary constraints on source melting: (1) a plume component appears to be the dominant source of Imnaha Basalt; (2) Grande Ronde Basalt is best interpreted as being derived from a mafi c pyroxenite or eclogite source; (3) the sequence of source melting must correspond with the stratigraphic record; and (4) working models must explain a stepfunction chemical change at the Imnaha– Grande Ronde stratigraphic boundary. We can envision only three potential models to satisfy these primary constraints: (1) melting of a mantle plume entrained with eclogite, (2) plume interaction with the Juan de Fuca plate, and (3) delamination triggered by plume emplacement. The fi rst two of these are inconsistent with the time-stratigraphic sequence of melting and cannot satisfy all four primary constraints. In contrast, a model of plume-triggered delamination accurately predicts a progressive sequence of melting that satisfi es each of the primary constraints. Such a model is consistent with recent numerical experiments demonstrating that delamination is the expected result of plume emplacement beneath thin Mesozoic lithosphere lying adjacent to a thick cratonic boundary. We test this model by comparing the observed history of uplift and tectonism in eastern Oregon and adjacent Washington to that predicted by the numerical models to reveal consistent stress regimes and strikingly similar topographic and structural profiles.
A plume-triggered delamination origin for the Columbia River Basalt Group: Camp, Victor E, Hanan, Barry B, 2008, Geosphere; June 2008; v. 4; no. 3; p. 480–495; doi: 10.1130/GES00175.1.
Seismogenic, electrically conductive, and fluid zones at continental plate boundaries in New Zealand, Himalaya, and California, USA: Jiracek, G. R., Gonzalez, V. M., Caldwell, T. G., Wannamaker, P. E., and Kilb, D., 2007, : in D. Okaya, T. Stern, and F. Davey, eds., A continental plate boundary: Tectonics at South Island, New Zealand, Geophys. Mono. Ser. 175, AGU., Washington, DC, 347-369.
Yellowstone plume–continental lithosphere interaction beneath the Snake River Plain: Hanan, B.B., Shervais J.W., and Vetter, S.K., 2007, Geology, v.34, Issue 1, pp. 51–54. DOI: 10.1130/G23935A.1
Influence of spatiotemporal scale on the interpretation of paleocommunity structure: Lateral variation in the Imperial Formation of California: Redman C M, Leighton L R, Schellenberg S A, Gale C N, Nielsen J L, Dressler D L, Klinger M K, 2007, PALAIOS, vol. 22, no. 6, p. 630-641.
Natural Disasters, 6th edition Abbott, Patrick. McGraw-Hill : New York, NY, United States, 2008
Physical and chemical evidence of the 1850 Ma Sudbury impact event in the Baraga Group, Michigan: Pufahl P K, Hiatt E E, Stanley C R, Morrow J R, Nelson G J, Edwards C T, 2007, Geology; September 2007; v. 35; no. 9; p. 827-830; DOI: 10.1130/G23751A.1
Rapid passage of a small-scale mantle heterogeneity through the melting regions of Kilauea and Mauna Loa Volcanoes: Marske J P, Pietruszka A J, Weis D, Garcia M O, Rhodes M, 2007, Earth and Planetary Science Letters, Volume 259, Issues 1-2, 15 July 2007, Pages 34-50
Shock-metamorphic petrography and micro-Raman spectroscopy of quartz in upper impactite interval, ICDP drill core LB-07A, Bosumtwi impact crater, Ghana: Morrow, J.R., 2007, Meteoritics & Planetary Science, v. 42, p. 591-609.
Staggered-grid split-node method for spontaneous rupture simulation , Dalguer, Luis A. and Day, Steven M. In: Journal of Geophysical Research, February 04, 2007, Vol. 112, Issue B2
Paleolimnology; Marine Ostracods, Schellenberg, S. A. Encyclopedia of Quaternary science; Volume 3. Elias, Scott A., 2007, pp. 2046-2062
Recent and long-term behavior of the Brawley fault zone, Imperial Valley, California; an escalation in slip rate?, Meltzner, Aron J, Rockwell, Thomas K., Owen, Lewis A In: Bulletin of the Seismological Society of America, December 2006, Vol. 96, Issue 6, pp.2304-2328
Comparison of fault representation methods in finite difference simulations of dynamic rupture , Dalguer, Luis A. In: Bulletin of the Seismological Society of America, October 2006, Vol. 96, Issue 5, pp.1764-1778
Impacts and mass extinctions revisited , Morrow, Jared R. In: Palaios, August 2006, Vol. 21, Issue 4, pp.313-315
Strong shaking in Los Angeles expected from southern San Andreas earthquake , Olsen, K. B. In: Geophysical Research Letters, April 16, 2006, Vol. 33, Issue 7
The long record of San Jacinto Fault paleoearthquakes at Hog Lake; implications for regional patterns of strain release in the southern San Andreas Fault system , Rockwell, T. In: Seismological Research Letters, April 2006, Vol. 77, Issue 2, pp.270
TeraShake; strong shaking in Los Angeles expected from southern San Andreas earthquake , Olsen, K. In: Seismological Research Letters, April 2006, Vol. 77, Issue 2, pp.281-282
Dynamic failure stress for the great 1906 San Francisco earthquake as a predictor for later events , Olsen, K. In: Seismological Research Letters, April 2006, Vol. 77, Issue 2, pp.300
