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Full-Text Articles in Physical Sciences and Mathematics
Tsunamis: Desprevenidos Por La Realidad De La Geología Un Estudio De La Posibilidad Y Precauciones Por Un Tsunami En Puerto López, Manabí, Ecuador, Abigail Eurich
Independent Study Project (ISP) Collection
Tsunamis occur in the Pacific Ocean about once every 1.5 years (Berninghausen, 1962). Forty-nine Tsunamis are recorded to have hit the western coast of South America since 1562, though only 3 hit the coast of Ecuador specifically (Berninghausen, 1962). However, it is still important to recognize the possibility of having a tsunami in Ecuador and plan accordingly. On a very complex junction of the Nazca and South American plate, with the Nazca and Carnegie Ridges as well as the Galapagos hotspot, this part of the world is apt to many earthquakes, submarine landslides, and volcanic activity which all have the …
A Mineralogical Textural And Chemical Characterization Of A Hypothesized Kimberlite At White Mountain, Sunlight Basin, Wyoming, Stuart Kenderes
A Mineralogical Textural And Chemical Characterization Of A Hypothesized Kimberlite At White Mountain, Sunlight Basin, Wyoming, Stuart Kenderes
Mahurin Honors College Capstone Experience/Thesis Projects
Geologists have examined the causes and mechanisms responsible for the Heart Mountain detachment for over a century with much debate and discussion. White Mountain is a part of the upper plate, which was emplaced during the detachment event. Within White Mountain, there exist several andesitic dikes and carbonate ultra-cataclasite injectites, which were integral in the emplacement of the Heart Mountain detachment. This research involves the characterization and identification of an enigmatic vertical outcropping of brecciated rock located on White Mountain, Sunlight Basin, Wyoming, which was originally interpreted as a kimberlite. Samples were collected for geochemical and textural comparison, and cut …
Paleomagnetism Of Cascade Range Pleistocene Lava Flows Near Mckenzie Bridge, Oregon, Chelsea Jaeger
Paleomagnetism Of Cascade Range Pleistocene Lava Flows Near Mckenzie Bridge, Oregon, Chelsea Jaeger
Summer Research
The purpose of this study is to examine geomagnetic field behavior recorded in a series of Pleistocene lava flows located near McKenzie Bridge, Oregon. Twenty-four sites, each consisting of at least ten samples were collected during July of 2011 and 2012. Alternating field (AF) and thermal demagnetization studies reveal normal, reversed, and possibly transitional polarities. Thermal demagnetization studies indicate the bulk of the magnetic signal is held in low titanium magnetite. Additional AF and thermal analysis is required to confirm transitional directions. In addition, polished sections will be prepared for optical examination to confirm the magnetic mineralogy of the samples.
Instruments And Methods: A Method For Recording Ice Ablation Using A Low-Cost Ultrasonic Rangefinder, M. Len Keeler, Keith A. Brugger
Instruments And Methods: A Method For Recording Ice Ablation Using A Low-Cost Ultrasonic Rangefinder, M. Len Keeler, Keith A. Brugger
Geology Publications
We have adapted inexpensive ultrasonic rangefinders to measure ablation rates on the surface of a glacier.While ultrasonic rangers are commercially available for this purpose, our goal was to utilize rangefinders typically used in hobby robotics without significantly compromising performance. To correct for environmental factors that affect the speed of sound we use two ultrasonic rangefinders, one focused on a fixed target. Measurements of ablation correlate well with manual measurements with an uncertainty of about 3 cm, suggesting an accuracy comparable with other non-manual methods of recording ablation. The limitations of our rangefinder include those inherent in commercially available units as …