Because of the different characteristics of seismic velocity and density sensitivity kernels for Rayleigh wave amplification and phase velocity, combining observations of surface-wave amplification with …
The goal of this work was to provide a foundation for quantitative assessment of H2O abundance of terrestrial and extraterrestrial geologic materials using visible-near infrared …
Past hydroclimatic change is shown from the reconstruction of paleo-lake levels from New Long and Rocky Ponds in southeastern Massachusetts, and Davis Pond in western …
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 …
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 …
This thesis studies the shergottite family of martian meteorites using a variety of experiments performed on natural and synthetic samples. The study determines the crystallization …
This PhD thesis presents a comprehensive exploration of Earth’s upper mantle from global and regional perspectives, with a particular emphasis on the stable cores of …
The nature of the early martian climate, hydrological cycle, and their relationship to the impact cratering process has remained enigmatic, but are critically important in …
Geodynamic models are developed to understand the geologic evolution of icy satellites and Kuiper belt objects. The key scientific questions addressed by this thesis are: …
The Songliao Basin in Northeast China contains one of the most complete terrestrial sedimentary records of the Cretaceous and represents an important terrestrial paleoclimate archive. …
In Providence, Rhode Island, communities of color and neighborhoods with high asthma rates are not well-represented by the coarse spatial resolution of current government-operated monitoring. …
Recent climate extremes, including floods, droughts, and hurricanes, have had devastating effects worldwide, driving new research aimed at developing better prediction of such events. Understanding …
Tropical dry forests are an extensive biome that supports biodiversity, food, water and energy resources for millions of people. Among global tropical dry forests, the …
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. …
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. …
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 …
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 …
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 …
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 …