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Items (61-80) out of 175 results

Foundations of Lunar Highland Crustal Mineralogy Derived from Remote Sensing and Laboratory Spectroscopy of Plagioclase-Dominated Materials

Description:
Recent data from orbital spectrometers at the Moon have, for the first time, directly identified the mineral structure of plagioclase feldspar on the lunar surface. …
Year:
2014
Contributor:
Cheek, Leah (creator)
Pieters, Carle (Director)
Mustard, John (Reader)
Parman, Stephen (Reader)
Cooper, Reid (Reader)
Jolliff, Bradley (Reader)
Brown University. Geological Sciences (sponsor)
Genre:
theses
Subject:
Moon; Spectroscopy; Plagioclase; Anorthosite; Geology
Language:
English
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

From Emplacement to the Surface - Constraining the Exhumation History of Aleutian Arc Intrusives

Description:
The Aleutian Islands, an island arc spanning over 3,000 km from the Kamchatka Peninsula to the Gulf of Alaska, formed through Pacific-North American plate subduction …
Year:
2025
Contributor:
Carrera, Anahi (creator)
Cooperdock, Emily (Advisor)
Hirth, Greg (Reader)
Fischer, Karen (Reader)
Dalton, Colleen (Reader)
Ault, Alexis (Reader)
Brown University. Department of Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Geology
Subduction zones
Earth sciences
Alaska--Aleutian Islands
Thermochronology
Tectonics
Exhumation
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Available to Brown-affiliated users only
Full Record

From the Atmosphere to the Sea: Atmospheric Nitrogen Deposition to Aquatic Ecosystems

Description:
The availability of nutrients in surface waters, including inorganic nitrogen (N) (i.e., nitrate (NO3-), nitrite (NO2-), and ammonium (NH4+)), regulates estuarine and ocean primary production. …
Year:
2022
Contributor:
Joyce, Emily Elizabeth (creator)
Hastings, Meredith (Advisor)
Huber, Christian (Reader)
Herbert, Timothy (Reader)
Russell, James (Reader)
Altieri, Katye (Reader)
Brown University. Department of Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Atmospheric chemistry and biogeochemistry
Stable isotopes
Nitrogen
Atmospheric deposition
Ocean-atmosphere interaction
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

Geochemical Signatures of Stable Planetary Surfaces: Oxidative Weathering Processes on Earth and Mars

Description:
The climatic history of Mars has been indirectly studied through the remote detection of minerals produced by chemical alteration across its surface. While the martian …
Year:
2013
Contributor:
Salvatore, Mark (creator)
Mustard, John (Director)
Head III, James (Director)
Cooper, Reid (Reader)
Saal, Alberto (Reader)
Rogers, Deanne (Reader)
Brown University. Geological Sciences (sponsor)
Genre:
theses
Subject:
Chemical Alteration
Mars
Spectroscopy
Oxidation
Spectrum analysis
Remote sensing
Mars (Planet)
Antarctica
Language:
English
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

Geochemical, Paleoclimate, and Thermodynamic Insights into Lithium Enrichment and Extraction in Western U.S. Volcano-Sedimentary Deposits

Description:
Lithium-bearing clay deposits represent a large yet poorly constrained resource for meeting growing global demand for lithium used in energy storage technologies. In contrast to …
Year:
2026
Contributor:
Gagnon, Catherine Anne (creator)
Ibarra, Daniel (Advisor)
Russell, James (Reader)
Hirth, Greg (Reader)
Dalton, Colleen (Reader)
Whittaker, Michael (Reader)
Brown University. Department of Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Clay minerals
Lithium silicates
isotope geochemistry
paleoclimate
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
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 …
Year:
2015
Contributor:
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
Subject:
Galapagos
hotspot
mantle
volatile elements
lead isotopes
oxygen isotopes
oxygen fugacity
oxidation state
shallow level process
Lead--Isotopes
Oxygen--Isotopes
Galapagos Islands
Language:
English
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

Geophysical Evolution of the Moon and Asteroid 16 Psyche

Description:
The modern surfaces of planetary bodies throughout the solar system are shaped by their ancient thermal and interior evolution. Here we work to understand the …
Year:
2024
Contributor:
Nichols-Fleming, Fiona (creator)
Evans, Alexander (Advisor)
Johnson, Brandon (Advisor)
Daubar, Ingrid (Reader)
Tsai, Victor (Reader)
Sori, Michael (Reader)
Brown University. Department of Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Asteroids
Moon
Planetary science
planetary interiors
Solar system--Psyche (Asteroid)
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

Geophysical Fluid Dynamics and the Calculus of Moving Space

Description:
Abstract of Geophysical Fluid Dynamics and the Calculus of Moving Space, by Joel Feske, Ph.D., Brown University, May 2026. Geophysical fluid dynamics (GFD) is the …
Year:
2026
Contributor:
Feske, Joel Simon (creator)
Fox-Kemper, Baylor (Advisor)
Lilly, Jonathan (Reader)
Tsai, Victor (Reader)
Freilich, Mara (Reader)
Huber, Christian (Reader)
Brown University. Department of Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Fluid Dynamics
Applied mathematics
Geometry, Differential
ocean modeling
Geophysical Fluid Dynamics and Dynamical Systems
Physical oceanography
Calculus of tensors
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

Global and Pacific Temperature, Productivity, and Western North America Hydroclimate Change during the Holocene

Description:
Understanding the characteristics and drivers of climate variations is imperative to advancing our knowledge about the evolution and changes of the Earth system. The Holocene …
Year:
2023
Contributor:
Cheung, Anson Hill-yu (creator)
Herbert, Timothy (Advisor)
Fox-Kemper, Baylor (Advisor)
Bergen, Karianne (Reader)
Bhattacharya, Tripti (Reader)
Russell, James (Reader)
Brown University. Department of Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Climatic changes
Paleoclimatology
Hydroclimate
Holocene Geologic Period
Ocean temperature
Pacific Ocean
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

Grain Boundaries, Deformation and Energy Dissipation in Water Ice

Description:
Stress-reduction, creep, grain-growth, and attenuation experiments were conducted on polycrystalline water ice to examine the links amongst microstructural steady-state, the mechanical response to transient loading, …
Year:
2017
Contributor:
Caswell, Tess Elaina (creator)
Cooper, Reid (Advisor)
Hirth, Greg (Reader)
Dalton, Colleen (Reader)
Milliken, Ralph (Reader)
Kohlstedt, David (Reader)
Brown University. Department of Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Geology
Ice
Rheology
Geophysics
attenuation
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

Heat-Related Mortality in a Warming World: Implications and Ways Forward

Description:
Heat has been, and will continue to be, a major environmental hazard, public health concern, and local and national economic and security challenge. Extreme high …
Year:
2019
Contributor:
Blanck, Caroline (creator)
Wellenius, Gregory (thesis advisor)
Roberts, Timmons (reader)
Brown University. Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Heat
Mortality
Climatic changes
race
gender
age
Language:
English
Collection:
The Swearer Center Digital Archive
Engaged Scholars Capstones
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

High latitude controls on the evolution of eastern equatorial Pacific oceanography and climate since the last glacial period

Description:
Dynamical shifts in the behavior of the Eastern Equatorial Pacific Ocean (EEP) likely amplify changes to the global climate system through their control on heat, …
Year:
2017
Contributor:
Bova, Samantha C (creator)
Herbert, Timothy (Director)
Fox-Kemper, Baylor (Reader)
Clemens, Steven (Reader)
Fischer, Karen (Reader)
Lynch-Stieglitz, Jean (Reader)
Brown University. Geological Sciences (sponsor)
Genre:
theses
Subject:
paleoceanography
carbon cycle
deglaciation
rapid climate change
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

High Latitude Influences on Eastern Equatorial Pacific Climate Evolution Since the Pliocene

Description:
Tropical ocean upwelling zones like the eastern equatorial Pacific (EEP) Ocean regulate global climate by absorbing heat and carbon dioxide from the atmosphere. The influx …
Year:
2024
Contributor:
Kimble, Kristin Mary (creator)
Herbert, Timothy (Advisor)
Russell, James (Reader)
Clemens, Steven (Reader)
Dalton, Colleen (Reader)
Ford, Heather (Reader)
Brown University. Department of Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Isotope geology
Paleoclimatology
Organic geochemistry
Paleoceanography
Pleistocene Geologic Epoch
Pliocene Geologic Epoch
Equatorial Pacific Ocean Climate Studies
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
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 …
Year:
2015
Contributor:
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
Subject:
Mars
imaging spectroscopy
hyperspectral imaging
aqueous alteration
hydrothermal
Spectral imaging
Mineralogy
Mars (Planet)
Language:
English
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

High- and Low-Latitude Forcing of African Hydroclimate and Vegetation Across the Plio-Pleistocene Boundary

Description:
The Pliocene (5.33-2.58 million years before present (Ma)) is the most recent epoch of Earth’s history when atmospheric pCO2 levels were as high as the …
Year:
2024
Contributor:
Mitsunaga, Bryce Akio (creator)
Russell, James (Advisor)
Herbert, Timothy (Advisor)
Huang, Yongsong (Reader)
Saal, Alberto (Reader)
Bhattacharya, Tripti (Reader)
Brown University. Department of Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Isotope geology
Paleoclimatology
Organic geochemistry
Water
Africa
Paleoceanography
Pliocene-Pleistocene boundary
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

High-Latitude Climate, Ice Sheet, and Oceanographic Evolution During the Miocene

Description:
Earth’s high-latitude regions experienced warm, wet, and deglaciated conditions during the Miocene Climatic Optimum, which ended with cooling, aridification, and ice sheet expansion during the …
Year:
2026
Contributor:
Nirenberg, Jared Ethan (creator)
Herbert, Timothy (Advisor)
Ibarra, Daniel (Reader)
Tsai, Victor (Reader)
Russell, James (Reader)
Abell, Jordan (Reader)
Brown University. Department of Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Antarctica
Paleoclimatology
Paleoceanography
North Pacific Ocean
Antarctic Ocean
Miocene Geologic Epoch
Middle Miocene Climatic Optimum
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

Holocene climate evolution of the eastern tropical Pacific told from high resolution climate records from the Peru margin and equatorial upwelling regions

Description:
The Peru margin plays a significant role in global climate dynamics and biogeochemical cycling. Situated between 4-15°S off the western coast of South America the …
Year:
2011
Contributor:
Chazen, Caitlin R (creator)
Herbert, Timothy (Director)
Tullis, Jan (Reader)
Russell, James (Reader)
Altabet, Mark (Reader)
Koutavas, Athanasios (Reader)
Brown University. Geological Sciences (sponsor)
Genre:
theses
Subject:
Peru margin
El Nino Southern Oscillation
Climate Variability
Holocene
OMZ
Holocene Geologic Period
Language:
English
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

Human Exploration Destinations: Non-Polar Ice on Mars and Large Pyroclastic Deposits on the Moon

Description:
The next few decades are expected to host a reinvigoration of planetary exploration by humans. The most likely targets for near-term human exploration include the …
Year:
2018
Contributor:
Jawin, Erica Ruth (creator)
Head, James (Advisor)
Pieters, Carle (Reader)
Rutherford, Malcolm (Reader)
Lee, Jung-Eun (Reader)
Fastook, James (Reader)
Brown University. Department of Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Lunar volcanism
Remote sensing
Mars (Planet)
Moon
Exploration of outer space
Glacial landforms
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

Hydroclimate and Temperature Variability in High-Elevation Regions of Tropical Africa Since the Last Glacial Maximum

Description:
Tropical African mountains are particularly sensitive to current and future climate change. Reconstructions of past variations in temperature and precipitation in tropical Africa are useful …
Year:
2022
Contributor:
Garelick, Sloane (creator)
Russell, James (Advisor)
Dalton, Colleen (Reader)
Lee, Jung-Eun (Reader)
Ibarra, Daniel (Reader)
Berke, Melissa (Reader)
Brown University. Department of Earth, Environmental, and Planetary Sciences (sponsor)
Genre:
theses
Subject:
Paleoclimatology
Organic geochemistry
Eastern Africa
Lake sediments
temperature lapse rates
tropical mountains
Last Glacial Maximum
hydrogen isotopes
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

Ice Sheet Melting Throughout Mars Climate History: Mechanisms, Rates, and Implications

Description:
Valley networks, many connecting voluminous paleolakes, dissect the martian highlands, but ceased activity ~3.7 billion years ago. The nature of the climate that allowed so …
Year:
2016
Contributor:
Scanlon, Kathleen E (creator)
Head, James (Director)
Huang, Yongsong (Reader)
Lee, Jung-Eun (Reader)
Mustard, John (Reader)
Fastook, James (Reader)
Brown University. Geological Sciences (sponsor)
Genre:
theses
Subject:
Mars
Mars climate
Early Mars
Glaciovolcanism
Snowmelt
Mars (Planet)
Language:
English
Collection:
Earth, Environmental and Planetary Sciences
Theses and Dissertations
Full Record

Items (61-80) out of 175 results