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Showing 1 to 20 of 32 for “"San Andreas"”.
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Three-dimensional thermo-mechanical modeling of deformation at plate boundaries : case study San Andreas Fault System
… Pacific plate and the landward migration of the San Andreas plate boundary. One of the theories suggests that the Pacific plate first cools and captures the uprising mantle in the slab window, and then it causes the accretion of the continental crustal blocks. The alternative theory attributes …
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Earthquakes in complex fault settings: Examples from the Oregon Cascades, Eastern California Shear Zone, and San Andreas fault
… transition zone of the creeping section of the San Andreas fault at Parkfield, CA to determine if it shifted in response to the M6 2004 Parkfield earthquake. I used an Iterative Closest Point algorithm to find the displacement between two lidar datasets acquired 13 years apart. I compared creep …
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Exploration and application of post-infrared high-temperature infrared stimulated luminescence dating techniques: investigation of marine terrace deposits along the northern San Andreas Fault
… to a marine terrace that is displaced by the San Andreas Fault. Corals from the terrace along the Pacific plate, dated with U-series by Muhs et al. (2002), offer an age estimate. Comparison of the pIRIR ages to the U-series ages yield an underestimation, suggesting the pIRIR method may be more …
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Refraction Microtremor Analysis of Areas Surrounding California State University San Bernardino
<p>The San Andreas Fault stretches for over 800 miles through California. Along the foothills of the San Bernardino Mountains, areas in close proximity to the San Andreas Fault Zone may be subject to site amplification of ground motion caused by seismic activity via wave propagation through the …
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Fault formation in porous sedimentary rocks at high strain rates
… of faults mapped within the porous Navajo Sandstone at the Upheaval Dome impact structure in Canyonlands National Park, southeast Utah, where high strain rate conditions are known to have occurred. We found no evidence for DBDZ formation along the fault planes at Upheaval Dome. Instead …
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Qualidade de morangos produzidos sob sistemas convencional e orgânico no Vale do Ipojuca-PE. /
… and conventional systems, while cultivating San Andreas was derived only from conventional culture. The fruits of strawberry were collected from different commercial plantations in the valley region Ipojuca mesoregion Agreste Pernambucano in the municipality of micro Brejo the Mother of God - …
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Kinematic models of deformation in Southern California constrained by geologic and geodetic data
… the other, we assign a priori slip rates to the San Andreas, Garlock, Helendale, Newport-Inglewood, Owens Valley, Sierra Madre, and Chino faults to create a joint geologic and geodetic model, using the a priori slip rates to refine the results in areas with limited geodetic data. Our results for …
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Kinematic models of interseismic deformation in Southern California
… accumulation from active fults. We find that the San Andreas Fault slips close to Its Holocene rate in the Carrizo Plain (35.6 [plus-minus] 0.5 mm/yr) but is five times slower near San Bernadino (6.6 [plus-minus] 2.7 mm/yr). Thrust faults underneath Los Angeles, the Ventura Basin, and the San …
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Long-term exhumation of landscapes along the Pacific-North American plate boundary as inferred from apatite (U-Th)/He and ArcGIS analyses
… requires detailed case studies. The northern San Gabriel Mountains along the San Andreas fault and the Chugach-Kenai Mountains above the Aleutian subduction zone are located along highly tectonically active sections of the Pacific-North American plate boundary and have not been studied from …
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Tectonic Exhumation and Climate Driven Erosion in Extensional Mountain Blocks: Two Examples from California, USA
… extensional fault system linked to the southern San Andreas fault, a major tectonic element of this plate boundary. Furthermore, decades of research has shown relationships between climate, tectonics, and surface processes in most orogens across the globe (e.g. Alps, Himalaya, Andes, Alaska …
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New Constraints on Fault-Zone Structure from Seismic Guided Waves
… events recorded in the SAFOD borehole in the San Andreas Fault. A pair of deep earthquakes recorded in the SAFOD borehole indicate a ~150 m wide San Andreas Fault waveguide with >20% velocity contrast at 10-12 km depth. With additional earthquakes, the full FZ structure at seismogenic depth …
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HYDROGEOLOGIC PROPERTY ESTIMATION IN PLATE BOUNDARY OBSERVATORY BOREHOLES USING TIDAL RESPONSE ANALYSIS
… Boundary Observatory (PBO) network along the San Andreas fault and Cascadia subduction zone. Permeability and hydraulic diffusivity determinations range from 6.4_10-16 – 8.4_10-14 m2 and 1_10-4 – 9_10-1 m2s-1, respectively, whereas specific storage values are ~1_10-6 m-1. Values are generally …
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Novel Multitemporal Synthetic Aperture Radar Interferometry Algorithms and Models Applied on Managed Aquifer Recharge and Fault Creep
… slow slip events (SSEs) along the Southern San Andreas Fault using multitemporal SAR interferometric time series from 2015-2021. These SSEs govern aseismic slip dynamics, manifesting as avalanche-like creep rate variations. The study further investigates Managed Aquifer Recharge (MAR) as a …
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QUALITATIVE COMPARISON OF OFFSET SURFACES BETWEEN THE CENTRAL AND EASTERN GARLOCK FAULT
… together reaching approximately 260 km from the San Andreas Fault to the southern end of Death Valley. Although published slip rates are available along the western and central Garlock Fault segments, little is currently known of the Garlock Fault earthquake history or slip rate farther east. …
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Strawberry Powdery Mildew Caused by Podosphaera aphanis: Fungicide Resistance and Host Plant Resistance
… collected from Balico, Salinas, Watsonville, San Luis Obispo, Santa Maria, Ventura, and Oxnard CA and tested through the assay. The number of isolates resistant to each treatment was: penthiopyrad (7), quinoxyfen (6), myclobutanil (7), trifloxystrobin (2), cyflufenamid (1), fluopyram + …
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Building Velocity Models for Steep-Dip Prestack Depth Migration through First Arrival Traveltime Tomography
… modeled after a real survey across the San Andreas Fault, was constructed using a finite-difference algorithm. First arrival traveltimes were picked from the data and a velocity model was constructed using tomography. The velocity model was used to perform a Kirchhoff prestack depth …
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Utilizing Changes in Repeating Earthquakes to Monitor Evolving Processes and Structure Before and During Volcanic Eruptions
… of environments: from fault systems (such as the San Andreas and Cascadia subduction zone), to hydrothermal areas and volcanoes. Volcano seismologists are particularly concerned with repeating earthquakes, as they have been observed at volcanoes along the entire range of eruptive style and are …
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