Browsing by Thesis Department "Geological sciences (MU)"
Now showing items 21-40 of 131
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Constraining the timing of graben initiation in the central Afar using fluvial knickpoint erosion and terrestrial cosmogenic nuclides
(University of Missouri--Columbia, 2016)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The Afar region constitutes the diffuse ridge-ridge-ridge triple junction adjoining the Red Sea, Gulf of Aden, and Main Ethiopian Rifts. Extension in ... -
Coprolites of the late eocene using virtual paleontology from the Pipestone Springs Main Pocket, Montana
(University of Missouri--Columbia, 2022)The study of coprolites and their internal constituents has previously employed a predominantly destructive means of extraction, resulting in the partial or complete loss of the specimen. Recently, however, there have been ... -
Crustal stress across the northern Arabian plate and the relationship with the plate boundary forces
(University of Missouri--Columbia, 2013)The region encompassing the collision of northern Arabia with Eurasia is a tectonically heterogeneous region of distributed deformation. The northern Arabia plate is bounded to the west by the subducting Sinai plate and ... -
Dominant substrates used by methanogens in hypersaline environments
(University of Missouri--Columbia, 2010)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] The central goal of this study was to determine the dominant substrates used by methanogens in the salt ponds of Elkhorn Slough, the Don Edwards ... -
Dynamic links between short-term deformation and long-term tectonics: a finite element study
(University of Missouri--Columbia, 2009)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Geodetic and geological data for crustal deformation are significantly different in many places. This discrepancy may indicate different strain rates ... -
Earthquake interaction along the Sultandagi-Aksehir fault based on InSar and coulomb stress modeling
(University of Missouri--Columbia, 2008)The evolution of geologic structures along active faults is influenced by crustal deformation associated with several repetitions of the earthquake cycle, in addition to surficial processes accompanying geologic time. This ... -
Earthquakes in central eastern United States (CEUS) : spatiotemporal patterns and correlations with tectonic factors
(University of Missouri--Columbia, 2020)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Earthquakes have a history of predominantly occurring along plate boundaries; however, there have been notable exceptions -- the occurrence of earthquakes ... -
Effect of increasing trimethylamine and organic matter concentration on stable carbon isotopes of methane produced in hypersaline, substrate limited environments
(University of Missouri--Columbia, 2013)Substrate limitation has been proposed as an explanation for 13C enriched methane production from endoevaporite microbial communities in hypersaline environments. To test this possibility, methane production rates and ... -
Effect of plagioclase crystallization on liquid and magma viscosity in the Anorthite-diopside-dorsterite-quartz system
(University of Missouri--Columbia, 2006)SiO2 (CMAS) glasses were synthesized as analogs for dacitic and basaltic lavas. Liquid viscosities were measured between 101 and 1013 Pa s, over the temperature range of approximately 1600 to 700⁰C, using concentric cylinder ... -
The effects of volatiles on the viscosity and heat capacity of calc-alkaline basaltic and basaltic andesite liquids
(University of Missouri--Columbia, 2014)Calc-alkaline basaltic magmas are volumetrically important at continental and island volcanic arcs, yet their thermal and physical properties are poorly described. These basaltic magmas are characteristically hydrous, and ... -
Emplacement styles of obsidian lavas: an integrated field and laboratory study
(University of Missouri--Columbia, 2021)Previously accepted models of emplacement dynamics of obsidian lavas have recently been called into question by observations made during the effusive eruptions of Chaiten in 2008-2009 and Cordon Caulle in 2011-2012 in ... -
Entrainment and transport of coarse stream bed material in a fluviokarst watershed, south-central Missouri : a tracer particle study
(University of Missouri--Columbia, 2010)The midcontinent of the U.S. is karstified and contains well developed subsurface drainage systems covered by beds of coarse-grained, poorly sorted sediments, resembling those in upland surface streams. Within Tumbling ... -
Evaluation of solitary waves as a mechanism for oil transport in elastic porous media : a case study of the south Eugene Island field, Gulf of Mexico basin
(University of Missouri--Columbia, 2012)Hydrocarbons in shallow (< 1 km depth) Pleistocene sand reservoirs of the Eugene Island 330 field in the northern Gulf of Mexico basin are thought to have originated from Early Tertiary source sediments at depths of about ... -
Evaluation of the geologic CO[subscript 2]sequestration potential of the Morrow B sandstone in the Farnsworth, Texas hydrocarbon field using reactive transport modeling
(University of Missouri--Columbia, 2017)The objectives of this research were to examine the long term fate of CO[subscript 2] injected into the Morrow B Sandstone, a hydrocarbon reservoir in the Farnsworth Unit in northern Texas. A suite of numerical multiphase ... -
Examining dissolution procedure effects on trace and rare earth element concentrations and U/Pb ages in conodonts
(University of Missouri--Columbia, 2022)The ability to quantitatively date carbonate rocks and shales using geo- and thermochronometry has eluded geologists due to the scarcity of requisite minerals. A small number of investigations have shown that the highly ... -
Fault evolution and earthquakes : a finite element study
(University of Missouri--Columbia, 2006)The New Madrid Seismic Zone (NMSZ) in central United States is a good example of intraplate seismicity, which cannot be readily explained by the plate tectonics theory and remains poorly understood. I have developed a 3D ... -
Fault evolution and strain partitioning within deforming continents
(University of Missouri--Columbia, 2015)[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Diffuse deformation within continents and over broad plate boundary zones deviates from the prediction of plate tectonics theory. Some of the deforming ... -
Fault segmentation and paleoseismicity along the North Wutaishan Fault of the Shanxi Graben System, China
(University of Missouri--Columbia, 2013)The Shanxi Graben System has been the location of large, devastating intraplate earthquakes in the past, making it an ideal location for the study of the temporal recurrence of intracontinental earthquakes. This study ... -
Flow and heat transfer properties of Mono Craters rhyolites : effects of temperature, water content, and crystallinity
(University of Missouri--Columbia, 2008)The nature of volcanic processes, including rate of magma ascent, exsolution of volatiles, eruption style, and flow distance, is highly dependent on the viscosity of the associated magma and its ability to transfer heat. ... -
Fluid inclusion and oxygen isotope studies of high-grade quartz-scheelite veins at the Cantung Mine, Northwest Territories, Canada: products of a late-stage magmatic-hydrothermal event
(University of Missouri--Columbia, 2006)High-grade quartz-scheelite veins in the Open Pit orebody, Cantung occur 300 m above a limestone-monzogranite contact where the E-Zone orebody, a world-class tungsten skarn, is developed. Adjacent to these veins, alteration ...