SDSU Geological Sciences - Thesis Defense - William Munson

submitted by: tcarrasc
Investigating compositional variation in Cabrillo Formation conglomerate volcanic clasts, San Diego County, California William Munson Advisor Dr. David Kimbrough ABSTRACT Conglomerate clasts of the Campanian-Maastrichtian Cabrillo Formation, part of the Rosario Group, have been interpreted as locally derived forearc basin detritus shed from the adjacent Peninsular Ranges batholith (PRB) magmatic arc which ranges in age from ~140-85 Ma. Rosario Group sandstone compositions, detrital...

SDSU Geological Sciences - Thesis Defense - Tim Pelbath

submitted by: tcarrasc
Using texture and geochemical data to assess the stratigraphic relationships between the Marcus Wash and Rojo Grande units, Picacho State Recreation Area, SE California Tim Pelbath Advisor Dr. Gary Girty ABSTRACT The Picacho State Recreation Area (PSRA), located in the lower Colorado River region SE California, contains a thick sequence of Tertiary volcanics. Based on published work, Miocene volcanic rocks have been subdivided, from lowest to highest, into the following 6 mappable...

SDSU Geological Sciences - Thesis Defense - Karl Bloor

submitted by: tcarrasc
Indications of a Geothermal Resource West of Santa Fe, New Mexico Karl Bloor Advisors Dr. Shuo Ma and Dr. George Jiracek ABSTRACT New data from the USGS provide indications of a potential geothermal resource west of Santa Fe, New Mexico. The study area is located within the Española Basin, part of the Rio Grande rift, which has calculated heat flow between 72-109 mW/m2. Data from the USGS include temperature gradients, proposed geologic structures and ground water flow models....

SDSU Geological Sciences - Thesis Defense - Erik Gordon

submitted by: tcarrasc
Metamorphic Alteration of the Jurassic Metavolcanic Member, Winterhaven Formation, SE California; Implications for Classification and Interpreting Tectonic Setting Erik Gordon Advisor Dr. Gary Girty ABSTRACT The metavolcanic member of the Winterhaven Formation was erupted in an arc graben depression associated with extension during Jurassic subduction of the ancestral Pacific Plate beneath the California coastline. Analysis of 19 thin sections collected from the metavolcanic member...

SDSU Geological Sciences - Thesis Defense - Brianne Rohrer

submitted by: tcarrasc
Indications of release of constituents into groundwater in San Diego County's South Chollas Landfill Brianne Rohrer Advisor Dr. Kathy Thorbjarnarson ABSTRACT Landfills in San Diego County were not required to be lined until the 1970's, and accepted hazardous waste until the 1990's. South Chollas landfill was designed as an unlined landfill and stopped receiving waste in 1981. The by-products of trash degradation in the South Chollas Landfill produced volatile organic compounds such a...

SDSU Geological Sciences - Thesis Defense - Heather O'Brien

submitted by: tcarrasc
Water Chemistry in Two Multi-Depth Monitoring Wells in San Diego, California: A Comparison of Core Extracted Pore Water Versus Multiple Depth Well Samples Heather O'Brien ABSTRACT In 2001, the United States Geological Survey, in partnership with Sweetwater Authority and the City of San Diego, began a study to assess the geology and hydrology of the San Diego area. In addition to collecting surface water samples, seven multi-depth wells have been installed by USGS into the San Diego...

SDSU Geological Sciences - Thesis Defense - Steven Warner

submitted by: tcarrasc
Geochemistry and Petrogenesis of mid- Miocene Volcanoes from the Ancestral Cascades of Northeastern California Steven Warner ABSTRACT Several well-preserved, mid- to late Miocene volcanoes in northeastern California could well have an origin associated with the late Tertiary development of the ancestral Cascades volcanic arc. To assess this possibility, we have analyzed seventeen samples from the Spanish Springs Peak volcano and ten additional samples from four nearby volcanoes for...

SDSU Geological Sciences - Thesis Defense - Adam Kjos

submitted by: tcarrasc
The Bahia Tortugas fault basement mélange, Baja California Sur, Mexico: a record of forearc extension and orogenic mixing? Adam Kjos M.S. Candidate Department of Geological Sciences San Diego State University Advisor Dr. David Kimbrough Friday, April 29th, 2011 -------------------------------------------------------------------------------- ABSTRACT South of the California Coast Ranges, the Vizcaino Peninsula, Baja California Sur provides the best view of Mesozoic forearc...

SDSU Geological Sciences Webinar - Brandon Browne

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Magma Mixing in 'Real-Time': A Case Study of the 2006 Eruption of Augustine Volcano, Alaska Brandon Browne Department of Geological Sciences California State University, Fullerton Wednesday, April 27th, 2011 -------------------------------------------------------------------------------- Abstract: The frequency and dynamic nature of volcanic eruptions are strongly influenced by a variety of open-system processes that exemplify subvolcanic plumbing systems in island arc volcanoes,...

SDSU Geological Sciences - Thesis Defense - Gayatri Indah Marliyani

submitted by: tcarrasc
Straightening of the northern San Jacinto Fault, California: Is the San Jacinto fault competing with the San Andreas Fault for "Big Kid on the Block"? Gayatri Indah Marliyani M.S. Candidate Department of Geological Sciences San Diego State University Advisor Dr. Thomas Rockwell Wednesday, April 27th, 2011 -------------------------------------------------------------------------------- ABSTRACT New CPT and trench observations along the Claremont Fault at Mystic Lake indicate...