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The use of Hf-isotopes and high field strength elements to constrain magmatic processes and magma sources
(Massachusetts Institute of Technology, 1989)
Slip on ridge transform faults : insights from earthquakes and laboratory experiments
(Massachusetts Institute of Technology, 2005)
The relatively simple tectonic environment of mid-ocean ridge transform fault (RTF) seismicity provides a unique opportunity for investigation of earthquake and faulting processes. We develop a scaling model that is complete ...
The fluvial geochemistry of the rivers of Eastern Siberia and implications for the effect of climate on weathering
(Massachusetts Institute of Technology, 1998)
Hypervelocity impacts and the evolution of planetary surfaces and interiors
(Massachusetts Institute of Technology, 2009)
The thesis consists of five studies relating impact processes to the evolution of planetary interiors as well as impact structures on planetary surfaces. Chapter 2 is concerned with developing methods for estimating the ...
Kinematic models of interseismic deformation in Southern California
(Massachusetts Institute of Technology, 2004)
We develop a framework for interpreting geodetic measurements of interseismic deformation and geologic slip rate estimates in terms of block motions. This method accounts for the effects of block rotations and interseismic ...
Estimation of methane and carbon dioxide surface fluxes using a 3-D global atmospheric chemical transport model
(Massachusetts Institute of Technology, 2004)
Methane (CH₄) and carbon dioxide (CO₂) are the two most radiatively important greenhouse gases attributable to human activity. Large uncertainties in their source and sink magnitudes currently exist. We estimate global ...
Late Cenozoic uplift of southeastern Tibet
(Massachusetts Institute of Technology, 2003)
Recent field work and DEM analysis show that remnant, local areas of a low-relief land scape (or "erosion surface") are geographically continuous across the southeastern Tibetan Plateau margin and can be correlated in order ...
The earth's interior from both a seismological and petrological perspective
(Massachusetts Institute of Technology, 2002)
Shear-wave splitting measurements of teleseismic shear waves, such as SKS, have been used to estimate the amount and direction of upper-mantle anisotropy worldwide. One of the basic assumptions in making these measurements ...
Uncertainties in estimates of the oxidative capacity of the urban atmosphere : a modeling and measurement approach
(Massachusetts Institute of Technology, 2007)
Mobile emissions represent a significant fraction of the total anthropogenic emissions burden in megacities and have a deleterious effect on air quality at local and regional scales. Due to the significant sources of ...
Wind-evaporation feedback, angular momentum conservation, and the abrupt onset of monsoons
(Massachusetts Institute of Technology, 2008)
This thesis examines the mechanisms responsible for the abrupt onset of monsoon circulations, focusing on the role played by wind-evaporation feedback and its interaction with angular momentum conserving flow. The first ...