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Size-related Isotopic Heterogeneity in Lipids from the Marine Water Column
(2012-10-19)
Microbes, including Bacteria, are globally important mediators of elemental transformations in the marine water column, but not until recently has their biomass been suggested to contribute significantly to carbon export ...
Insights into Contractional Fault-Related Folding Processes Based on Mechanical, Kinematic, and Empirical Studies
(2012-09-17)
This dissertation investigates contractional fault-related folding, an important mechanism of deformation in the brittle crust, using a range of kinematic and mechanical models and data from natural structures. Fault-related ...
On the Dynamics of Plate Tectonics: Multiple Solutions, the Influence of Water, and Thermal Evolution
(2012-08-08)
An analytic boundary layer model for thermal convection with a finite-strength plate and depth-dependent viscosity is developed. The model includes a specific energy balance for the lithosphere and accounts for coupling ...
Sedimentology, Geochemistry, and Geophysics of the Cambrian Earth System
(2012-11-01)
Within this dissertation, I document how—and hypothesize why—the quirks and qualities of the Cambrian Period demarcate this interval as fundamentally different from the preceding Proterozoic Eon and succeeding periods of ...
Perspectives on Ocean Ridge Basalts from the Segment to the Global Scale
(2012-11-02)
This study addresses the influences on ridge basalt chemistry, through analysis of their major and trace element and isotopic composition at scales ranging from individual ridge segments to the entire length of the ridge ...