Index Catalog // ScholarsArchive@OSU

Meeting of the magmas : the evolutionary history of the Kalama Eruptive Period, Mount St. Helens, Washington

Creator:: Lieuallen, Athena Erin
Abstract:: Comprehension of eruptive histories is critical in understanding the evolution of magmatic systems at arc volcanoes and may supply evidence to the petrogenesis of intermediate and evolved magmas. Within the 300 ka eruptive history of Mount St. Helens, Washington, the Kalama Eruptive Period, 1479- ~1750 CE was bracketed by interludes...
Resource Type:: Masters Thesis
Full Text:: Abstract approved: _______________________________________________________________ Frank J. Tepley

The provenance and trace element signatures of MORB anorthitic plagioclase

Creator:: Burleigh, Andrew W.
Abstract:: In an attempt to understand the phase equilibria and petrogenesis of MORB anorthitic plagioclase, Cr-spinel commonly hosted within anorthitic plagioclase has been investigated petrographically and compositionally. Based on spinel-anorthite relationships from three samples of plagioclase ultra-phyric basalt (PUB; Southeast Indian Ridge, Axial Seamount and West Valley Segment, Juan de Fuca...
Resource Type:: Masters Thesis
Full Text:: Plagioclase Abstract approved: Roger L. Nielsen Frank J. Tepley III In an attempt to understand the

The geology, geochronology, and geochemistry of the Kaskanak Batholith, and other late Cretaceous to Eocene magmatism at the Pebble porphyry Cu-Au-Mo deposit, SW Alaska

Creator:: Olson, Nansen H.
Abstract:: The Pebble porphyry Cu-Au-Mo deposit in Alaska is one of the world's largest Cu-Au mineral resources. Late Cretaceous magmatic evolution in the Pebble district culminated with the intrusion of the Kaskanak Batholith and associated porphyry copper-gold-molybdenum mineralization. The Kaskanak Batholith is a multiphase granodiorite intrusion with an estimated footprint of...
Resource Type:: Masters Thesis
Full Text:: also like to thank my committee members, Dr. Adam Kent, and Dr. Frank Tepley for their assistance

Thin Films via Chemical Solution Deposition Synthesis from the (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ Ternary System

Creator:: Mendez, Jose Eduardo
Abstract:: The ternary system (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ (BNT-BKT-BMgT) was explored along the [75-(x 2) ]Bi₀.₅Na₀.₅TiO₃ - [25-(x 2)]Bi₀.₅K₀.₅TiO₃ - [x]Bi(Mg₀.₅Ti₀.₅)O₃ composition line. Thin films were fabricated using chelated mixing route solutions spin cast onto platinized silicon substrates. Processing parameters such as: excess cation molar%, solution molality, and crystallization temperatures, for composition where x=0,...
Resource Type:: Masters Thesis
Full Text:: (Mg0.5Ti0.5)O3 Ternary System Abstract approved: Brady J Gibbons The ternary system (Bi0.5Na0.5)TiO3

Models for predicting powder-polymer properties and their use in injection molding simulations of aluminum nitride

Creator:: Kate, Kunal H.
Abstract:: Powder injection molding (PIM) is widely used to manufacture complex-shaped ceramic and metal components in high production volumes. In order to design and fabricate PIM components, it is important to know a number of material properties at different powder- polymer compositions. In this thesis, several predictive models for estimating rheological,...
Resource Type:: Masters Thesis

Petrological Forensics of the Mount Sinabung, Sumatra, Indonesia Magma Reservoir before May 2016 Dome Collapse

Creator:: Bowers, Jade M.
Abstract:: Mount Sinabung, Sumatra, Indonesia initiated eruptive activity in 2010 with the addition of a magmatic component in 2013, after a 3 year period of quiescence. Observations of magmatic activity began with phreatomagmatic eruption starting July 2013 closely followed by extrusion of andesitic lava in December 2013. Lava effusion has persisted...
Resource Type:: Masters Thesis
Full Text:: ), enclave type-I (ET1), enclave type-II (ET2), and enclave type-III (ET3). Mineral compositions were

Reconstructing the Physical Record of a Four-Million-Year Volcanic System : Geochemistry, Thermobarometry, and Geologic Map of the Mount Jefferson Area, Oregon

Creator:: DiGiulio, Jennifer
Abstract:: Volcanic and sedimentary deposits of the Mount Jefferson area (MJA) record a fourmillion-year history of arc-related volcanism related to the subduction of the Juan de Fuca plate beneath North America. 171 mapped stratigraphic units over an area of 150 km² reveal four periods of volcanic activity resulting in diverse composition...
Resource Type:: Masters Thesis

Characterization of Low Temperature Crystallization Growth Parameters of the Growth-dominated Phase Change Materials: Ge1Sb6Te1 and Ga15Sb85 by Optical Microscopy

Creator:: Winseck, Mark M.
Abstract:: Phase change memory materials are a set of chalcogenide or pnictogenide materials systems currently being researched for use in optical and resistive based memory systems due to their large change in optoelectronic properties between the amorphous and the crystalline states. For these materials systems to be considered as a suitable...
Resource Type:: Masters Thesis
Full Text:: measurements of GeTe…………………………………………………….. 19 Table III: Kinetics values for high antimony Ge-Sb alloys20

Corrosion of Carbon and Stainless Steels in H₂O-sCO₂ Environments for Power Cycle Applications

Creator:: Teeter, Lucas
Abstract:: The corrosion behaviors of carbon and stainless steels were investigated in supercritical CO₂ (sCO₂ ) containing H₂O and O₂ simulating conditions that exist in direct sCO₂ power cycle heat exchangers. Thermodynamic properties of CO₂-H₂O-O₂ systems related to the corrosion phenomena were determined using NIST software. The exposure tests of the...
Resource Type:: Masters Thesis
Full Text:: , is thermodynamically unstable below 575 ◦C. It will de- grade to Iron (II, III) Oxide, Fe3O4 [27

Intrusion Sequence and Hydrothermal Fluid Evolution of Encuentro Porphyry Cu-Mo-Au deposit, Northern Chile

Creator:: Osorio C., Jaime
Abstract:: This dissertation is divided into two major chapters. The first chapter covers the geologyof the Encuentro deposit with emphasis in the intrusion sequence, vein mineral assemblages and distribution, and age of mineralization. The data used for this section includes field mapping, petrography, elemental analysis of biotite, and isotopic geochronology. The...
Resource Type:: Masters Thesis
Full Text:: and XRD analysis, and edits of this chapter. Frank Tepley and Mélissa Drignon assisted with EPMA

ScholarsArchive@OSU

Meeting of the magmas : the evolutionary history of the Kalama Eruptive Period, Mount St. Helens, Washington

The provenance and trace element signatures of MORB anorthitic plagioclase

The geology, geochronology, and geochemistry of the Kaskanak Batholith, and other late Cretaceous to Eocene magmatism at the Pebble porphyry Cu-Au-Mo deposit, SW Alaska

Thin Films via Chemical Solution Deposition Synthesis from the (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ Ternary System

Models for predicting powder-polymer properties and their use in injection molding simulations of aluminum nitride

Petrological Forensics of the Mount Sinabung, Sumatra, Indonesia Magma Reservoir before May 2016 Dome Collapse

Reconstructing the Physical Record of a Four-Million-Year Volcanic System : Geochemistry, Thermobarometry, and Geologic Map of the Mount Jefferson Area, Oregon

Characterization of Low Temperature Crystallization Growth Parameters of the Growth-dominated Phase Change Materials: Ge1Sb6Te1 and Ga15Sb85 by Optical Microscopy

Corrosion of Carbon and Stainless Steels in H₂O-sCO₂ Environments for Power Cycle Applications

Intrusion Sequence and Hydrothermal Fluid Evolution of Encuentro Porphyry Cu-Mo-Au deposit, Northern Chile

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