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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 ...
Geochemistry and reaction path modeling of the Beowawe hydrothermal system, Nevada : a barren end-member epithermal system
(University of Missouri--Columbia, 2010)
The Beowawe geothermal area is manifested by numerous hot springs, fumaroles, and before the installation of an electric power plant, spectacular geysers. Beowawe also bears many geologic similarities to ancient epithermal ...
Neodymium and oxygen isotopic constraints on upper Ordovician paleoceanographic evolution across the Dubuque/Maquoketa contact in NE Iowa and SE Minnesota
(University of Missouri--Columbia, 2011)
Measurements of conodonts, phosphatic brachiopods, and authigenic phosphate show no consistent trends in [superscript TM]18O[subscript phos] values but do show a gradual 2-3 unit [epsilon][subscript Nd] increase across the ...
Characterizing the relative timing and conditions of gold and base-metal deposition in the northern part of the Yellowknife Greenstone Belt, Northwest Territories, Canada
(University of Missouri--Columbia, 2011)
A complexity of gold-mineralization styles is recognized in the north end of the Yellowknife Greenstone Belt (YGB), [about]30 km north of Yellowknife. These include volcanogenic massive sulfides, sulfide zones at intersections ...
2D and 3D modeling of the Laramide fold geometry of Derby Dome and its en echelon interchange with Dallas Dome, southern Wind River Basin, Wyoming
(University of Missouri--Columbia, 2014)
The Wind River Mountains of central Wyoming formed as a basement-cored uplift during the Laramide orogeny (ca. ~75-35 Ma) and produced a series of left stepping, en echelon NW-SE trending folds, including Dallas Dome and ...
Analysis of quaternary faults and associated deformation of sedimentary basin fill : inner continental borderland of southern California
(University of Missouri--Columbia, 2012)
The San Andreas fault system is distributed across hundreds of kilometers in southern California. This transform system includes offshore faults along the shelf, slope and across the Gulf of Santa Catalina basin (GSCB) -- ...
Analysis of the interchange between en echelon basin-margin Laramide folds adjacent to the Wind River Mountains, Wyoming
(University of Missouri--Columbia, 2013)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] Uplift of the basement-cored Wind River Mountains during the Laramide orogeny (ca. 75- 45 Ma) produced a series of subsidiary en echelon NW-SE trending ...
Hydrology of the Forest City Basin, mid-continent, USA : implications for CO2 sequestration in the St. Peter sandstone
(University of Missouri--Columbia, 2012)
The purpose of this research was to perform a preliminary assessment of the stratigraphy, storage capacity, hydrology and mineraology of this basin to determine its suitability and structural trapping capacity for geologic ...
A comprehensive study of marine sediments of NanTroSEIZE Project, offshore Japan : clay mineralogy, consolidation, and microfabric
(University of Missouri--Columbia, 2012)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] This dissertation investigates the clay mineral assemblages, consolidation state, and microfabric of sedimentary strata along the Kumano transect of ...
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 ...
The May 2010 eruption of Pacaya Volcano, Guatemala : an experimental study of subliquidus magma rheology
(University of Missouri--Columbia, 2014)
Pacaya volcano, Guatemala, erupted in May 2010 with two lava flows from lateral vents preceding a violent Strombolian eruption from the central vent. Compositions and textures of lava flow and tephra samples suggest a ...
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 ...
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 ...
Composition of magmatic fluids in the Harney Peak granite, Black Hills, South Dakota
(University of Missouri--Columbia, 2013)
Fluid inclusions are potential trapped samples of magmatic fluids, and they therefore provide a way to directly measure the composition of magmatic fluids. Understanding the composition of magmatic fluids is important ...
Geochemistry of fluid inclusions in the Vazante zinc deposit, Minas Gerais, Brazil
(2014)
The Vazante deposit in Minas Gerais, southeast-central Brazil is the world’s largest known occurrence of hypogene non-sulfide zinc (HNSZ) mineralization, originally consisting of about 28.5 million tonnes of ore at an ...
Upper mantle shear wave velocity structure of the east Anatolian-Caucasus region
(University of Missouri--Columbia, 2014)
In the present dissertation, I describe two studies of the regional upper mantle shear wave velocity structure. In order to derive the absolute velocity structure of the upper mantle, I have applied surface wave tomography ...
Two phases of extension in North China since Mesozoic :a numerical study
(University of Missouri--Columbia, 2013)
The North China Craton was formed around 1.8 Ga by collision and amalgamation of the Eastern and Western blocks. It remained tectonically stable since then until the Mesozoic, when its eastern part experienced widely ...
Mechanisms for the formation of spiraled inclusion trails in garnet porphyroblasts from the Precambrian core of the Laramie Mountains, southeastern Wyoming
(University of Missouri--Columbia, 2013)
Relationships between deformation fabrics and porphyroblasts have been used to evaluate the metamorphic and deformational histories of mountain belts. However, some porphyroblast-fabric relationships, such as those of ...
Role of Li and B bearing fluids in crystallization and alteration of granitic pegmatites, San Diego, California
(University of Missouri--Columbia, 2014)
The San Diego County pegmatites occur in the Mesozoic Peninsular Ranges Batholith that stretches from southwestern California to Baja California, Mexico. These zoned, lithium-cesium-tantalum type pegmatite dikes intruded ...
Variation and fractionation of lithium isotopes within single tourmaline crystals in the pegmatites of the Black Hills, SD
(University of Missouri--Columbia, 2014)
Extremely large elongated crystals, attributed to low nucleation rates and rapid growth during fast cooling (Nabelek et al., 2010), are just one example of the intriguing and unusual disequilibrium features found in granitic ...