Collaborative studies on tropical Asian dendrochronology: Addressing challenges in climatology and forest ecology

submitted by: UP Los Baños
A report on the Asia Pacific Network Global Change Research-funded project aimed to (1) establish tree ring laboratories in the region, (2) conduct reconnaissance of indigenous tropical Asian tree species with clear distinct growth rings, (3) conduct preliminary work to find if tree species with distinct growth rings have relevance to reconstructing past events, and (4) to establish and maintain a xylaria. DR. NESTOR T. BAGUINON Department of Forest Biological Sciences College of...

SDSU Geological Sciences - Thesis Defense - Carrie Welker

submitted by: tcarrasc
No evidence for seawater-derived crustal contamination at Loihi Seamount from trace metal abundances and oxygen isotope ratios Carrie Welker Advisor Dr. Aaron Pietruszka ABSTRACT Loihi Seamount is the youngest Hawaiian volcano. It towers ~3 km above the seafloor to within ~1 km of sea level. A previous study found elevated (234U/238U) ratios in sixteen Loihi volcanic glass samples. The expected value of (234U/238U) in primary magmas derived from the mantle is 1.000, but seawater's...

SDSU Geological Sciences - Thesis Defense - Daniel Torn

submitted by: tcarrasc
3D Petrel Geomodeling: Proposal for Redevelopment of a Hydrocarbon Reservoir Daniel Torn Advisor Dr. Gary Girty ABSTRACT Occidental Petroleum Corporation purchased the Black Mamba Oil Field from Vintage Petroleum Inc. in 2005. The Black Mamba Oil Field consists of two lithologically similar oil-producing reservoirs called the Phacodies and Pequena. These two reservoirs have not been redeveloped for over 30 years until recently. Oxy conducted recompletions of various wells in the...

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....