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Constraining North Atlantic circulation with transient tracer observations
(Massachusetts Institute of Technology, 2003)
The capability of transient tracers to constrain the ocean circulation in the North Atlantic is explored. Study of an idealized tracer shows that inferences of circulation properties from transient state distributions are ...
Biogeochemical proxies for environmental and biotic conditions at the Permian-Triassic boundary
(Massachusetts Institute of Technology, 2010)
The extinction at the Permian-Triassic boundary marked one of the most profound events of the Phanerozoic Eon. Although numerous hypotheses have been proposed, the trigger mechanism continues to be debated. This thesis ...
Transport and seismoelectric properties of porous permeable rock : numerical modeling and laboratory measurements
(Massachusetts Institute of Technology, 2010)
The objective of this thesis is to better understand the transport and seismoelectric (SE) properties of porous permeable rock. Accurate information of rock transport properties, together with pore geometry, can aid us to ...
The production of non-methane hydrocarbons by marine plankton
(Massachusetts Institute of Technology, 2001)
The oceans are a small source of non-methane hydrocarbons (NMHC), a suite of volatile organics whose chemical destruction mechanism by reaction with hydroxyl radical can significantly affect the oxidation capacity of the ...
Quantifying channelized submarine depositional systems from bed to basin scale
(Massachusetts Institute of Technology, 2004)
The challenges of directly observing active turbidity currents necessitates the consideration of preserved deposits for deciphering the behavior of these systems. In this thesis, I take advantage 3-D subsurface seismic ...
Laboratory and field-based investigations of subsurface geochemical processes in seafloor hydrothermal systems
(Massachusetts Institute of Technology, 2010)
This thesis presents the results of four discrete investigations into processes governing the organic and inorganic chemical composition of seafloor hydrothermal fluids in a variety of geologic settings. Though Chapters 2 ...
Geodetic measurement of deformation in California
(Massachusetts Institute of Technology, 1989)
Ambient noise tomography for wavespeed and anisotropy in the crust of southwestern China
(Massachusetts Institute of Technology, 2014)
The primary objective of this thesis is to improve our understanding of the crustal structure and deformation in the southeastern Tibetan Plateau and adjacent regions using surface wave tomography. Green's functions for ...
The optical identification and spectral analysis of celestial X-ray sources
(Massachusetts Institute of Technology, 1985)
Instabilities of an eastern boundary current with and without Large-scale Flow Influence
(Massachusetts Institute of Technology, 2011)
Eastern oceanic boundary currents are subject to hydrodynamic instability, generate small scale features that are visible in satellite images and may radiate westward into the interior, where they can be modified by the ...