Brown University Theses and Dissertations

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For dissertations published prior to 2008, please consult the following Dissertation LibGuide

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  • 13 2015

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Items (1-13) out of 13 results

Ancient Phases of Our Moon: Application of Experimental & Igneous Petrology to the Formation History of the Lunar Highlands Mg-suite

Description:
“Pink” Mg-spinel is a rare mineral among rock samples returned during the Apollo missions and is typically associated with the lunar highlands Mg-suite (a small ...
Copyright Date:
2015
Contributors:
Prissel, Tabb C (creator) Parman, Stephen (Director) Head, James (Reader) Jolliff, Bradley (Reader) Pieters, Carle (Reader) Rutherford, Malcolm (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
Experimental Petrology Mg-suite Lunar Highlands Magma-Wallrock Interactions Spinel
Full Record

Closure Temperature and Closure Pressure in Bi-Mineralic Systems with Applications to REE-in-Two-Mineral Thermobarometers

Description:
Thermal evolution of the planet interior is a fundamental problem in Earth and planetary sciences. Geothermobarometers and geospeedometers are powerful tools in studying the thermal ...
Copyright Date:
2015
Contributors:
Yao, Lijing (creator) Liang, Yan (Director) Hirth, Greg (Reader) Parman, Stephen (Reader) Parmentier, Marc (Reader) Saal, Alberto (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
closure temperature closure pressure bi-mineralic systems REE-in-two-pyroxene thermometer REE-in-garnet-clinopyroxene thermobarometer
Full Record

Dynamics of Melt-Lithosphere Interaction

Description:
This body of research uses numerical models to investigate the dynamics of melt generation in the asthenosphere, accumulation at the base of the lithosphere by ...
Copyright Date:
2015
Contributors:
Havlin, Christopher John (creator) Parmentier, Edgar (Director) Hirth, James (Reader) Fischer, Karen (Reader) Saal, Alberto (Reader) Buck, Roger (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
Melt migration dike propagation lithosphere-asthenosphere boundary continental rifting Two-phase flow
Full Record

Experimental and Field Constrains on the Physicochemical Evolution of the Lunar and Terrestrial Mantles

Description:
Abstract of Experimental and Field Constraints on the Physicochemical Evolution of the Lunar and Terrestrial Mantles, by Nicholas Dygert, PhD., Brown University, May 2015. This ...
Copyright Date:
2015
Contributors:
Dygert, Nicholas James (creator) Liang, Yan (Director) Hirth, James (Director) Parman, Stephen (Reader) Parmentier, Edgar (Reader) Kelemen, Peter (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
armalcolite HFSE REE Fe-rich pyroxene lattice strain Trinity Ophiolite Josephine Ophiolite Mariana Trench TREE REE-in-two-pyroxene geothermometry tectonics Ilmenite Hedenbergite Trinity Ophiolites Plate tectonics
Full Record

Experimental Constraints on the geochemical processing planetary interiors: Noble gases and spinel spectroscopy

Description:
The first three chapters of this thesis are focused on experimental determinations of noble gas solubility in a variety of materials relevant to partial melting ...
Copyright Date:
2015
Contributors:
Jackson, Colin (creator) Parman, Stephen (Director) Cooper, Reid (Reader) Saal, Alberto (Reader) Mukhopadhyay, Sujoy (Reader) Parmentier, Marc (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
noble gases Gases, Rare Geochemistry Spinel
Full Record

GEOCHEMISTRY OF THE GALÁPAGOS ARCHIPELAGO: UNRAVELING DEEP MANTLE SIGNATURES FROM THE INFLUENCE OF SHALLOW LEVEL PROCESSES

Description:
In this dissertation, I present a large geochemical data set of submarine glass, melt inclusions and whole rock collected from across the Galapagos Archipelago to ...
Copyright Date:
2015
Contributors:
Peterson, Mary E (creator) Saal, Alberto (Director) Kurz, M (Reader) Parman, Stephen (Reader) Forsyth, Donald (Reader) Cooper, Reid (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
Galapagos hotspot mantle volatile elements lead isotopes oxygen isotopes oxygen fugacity oxidation state shallow level process Lead--Isotopes Oxygen--Isotopes
Full Record

High Temperature Aqueous Alteration and Diagenesis: Unexpected Insights with Imaging Spectroscopy from Microns to Meters

Description:
Orbital and landed investigations of Mars have revealed a variety of secondary minerals on the surface consistent with past surface or subsurface liquid water and ...
Copyright Date:
2015
Contributors:
Greenberger, Rebecca Naomi (creator) Mustard, John (Director) Cooper, Reid (Reader) Milliken, Ralph (Reader) Schultz, Peter (Reader) Hurowitz, Joel (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
Mars imaging spectroscopy hyperspectral imaging aqueous alteration hydrothermal Spectral imaging Mineralogy
Full Record

Integrated Mineralogy and High Resolution Geologic Context of Lunar Impact Melt Deposits: Implications for Crustal Diversity and the Impact Cratering Process

Description:
This work is perhaps the first major study integrating mineralogical and morphological properties of lunar impact melt deposits using the new generation remote sensing data ...
Copyright Date:
2015
Contributors:
Dhingra, Deepak (creator) Pieters, Carle (Director) Head, James (Reader) Mustard, John (Reader) Liang, Yan (Reader) Parman, Stephen (Reader) Tompkins, Stefanie (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
Impact cratering Geology Mineralogy Remote sensing
Full Record

Linking Late Miocene-Pliocene sea surface temperatures, terrestrial biome transitions and intensification of glaciation using alkenone paleothermometry

Description:
This work presents novel Miocene – Pliocene (13 - 2.6 Ma) sea surface temperatures (SST) from the Mediterranean Sea, North Atlantic, South Atlantic and North Pacific ...
Copyright Date:
2015
Contributors:
Tzanova, Alexandrina (creator) Herbert, Timothy (Director) Clemens, Steven (Reader) Hastings, Meredith (Reader) Tullis, Jan (Reader) Wright, James (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
paleoclimate alkenones sea surface temperatures Miocene Pliocene Paleoclimatology Miocene Geologic Epoch Pliocene Geologic Epoch
Full Record

On the Isotopic Composition of Nitrate in Andean and Antarctic Ice Cores as a Tracer of Climate and Atmospheric Chemistry Through Time

Description:
The nitrogen and oxygen isotopic composition of nitrate in ice cores offers unique potential for examining reactive nitrogen oxide (NOx) budgets and oxidation chemistry of ...
Copyright Date:
2015
Contributors:
Buffen, Aron M (creator) Hastings, Meredith (Director) Herbert, Timothy (Reader) Lynch, Amanda (Reader) Parman, Stephen (Reader) Dibb, Jack (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
climate Nitrates Isotopes Ice cores Climatology Atmospheric chemistry
Full Record

Paleolakes on Mars: Insights into timing, morphology, and mineralogy

Description:
There is substantial geologic evidence, including extinct valley networks and paleolakes, for a period of increased aqueous activity on the surface of Mars prior to ...
Copyright Date:
2015
Contributors:
Goudge, Timothy A (creator) Mustard, John (Director) Head, James (Director) Milliken, Ralph (Reader) Russell, James (Reader) Grant, John (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
Mars; Planetary Science; Martian Paleolakes
Full Record

Reconstructing Orbital Scale Pliocene Paleoclimate from Deep Ocean Sediments: A New View from the Southern Hemisphere

Description:
Global warming due to anthropogenic contributions is a major concern scientifically, politically, and socially. Therefore, characterizing oceanographic and climatic changes under past warm conditions is ...
Copyright Date:
2015
Contributors:
Caballero-Gill, Rocio Paola (creator) Herbert, Timothy (Director) Clemens, Steve (Director) Dowsett, Harry (Reader) Parman, Stephen (Reader) Prell, Warren (Reader) Tullis, Jan (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
Paleoclimatology Paleoceanography Organic geochemistry Stable isotopes
Full Record

The Rheology of Amphibolite

Description:
The rheology of the lower continental crust profoundly affects our understanding of crustal dynamics, lithospheric curst/mantle coupling, and seismic hazards. However, the effect of ...
Copyright Date:
2015
Contributors:
Getsinger, Amanda Jean (creator) Hirth, James (Director) Cooper, Reid (Reader) Fischer, Karen (Reader) Tullis, Jan (Reader) Stünitz, Holger (Reader) Brown University. Geological Sciences (sponsor)
Genre:
theses
Keywords:
hydration reactions dislocation creep diffusion creep,continental crust Rheology Amphibolite
Full Record

Items (1-13) out of 13 results