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On Sea Level - Ice Sheet Interactions
(2014-02-25)
This thesis focuses on the physics of static sea-level changes following variations in the distribution of grounded ice and the influence of these changes on the stability and dynamics of marine ice sheets. Gravitational, ...
Estimates of Land Ice Changes from Sea Level and Gravity Observations
(2014-06-06)
Understanding how global ice volume on the Earth has changed is of significant importance to improving our understanding of the climate system. Fortunately, the geographically unique perturbations in sea level that result ...
Stability of Planetary Rotation
(2014-06-06)
This thesis focuses on the long-term rotational stability of the Earth and terrestrial planets. One important class of perturbation is a reorientation of the solid planet with respect to a rotation pole that remains fixed ...
Uncovering the Neoproterozoic Carbon Cycle
(Nature Publishing Group, 2012)
Interpretations of major climatic and biological events in Earth history are, in large part, derived from the stable carbon isotope records of carbonate rocks and sedimentary organic matter1,2. Neoproterozoic carbonate ...
Geodetic Imaging of Fault System Activity
(2014-06-06)
Geodetic observations provide kinematic constraints on the behavior of tectonically active fault systems. Estimates of earthquake cycle activity derived from these constraints may depend on modeling assumptions and/or ...
Mechanical Models of Coontinental Plate Boundaries Fault Slip Rates and Interseismic Stress Rotation Rates
(2014-06-06)
We first describe the methodology for a two-dimensional, elastic deformable microplate modeling approach for continental plate boundaries. Deformable microplate models combine discrete slip on microplate boundaries (faults) ...
On the Thermodynamics of Planetary Impact Events
(2013-09-30)
The history of planet formation and evolution is strongly tied to understanding the outcomes of a wide range of impact events, from slow accretionary events to hypervelocity events that melt and vaporize large fractions ...
Ice Stream Variability and Links to Climate
(2015-09-22)
This dissertation explores the variability and climatic importance of ice streams, regions of fast flow in ice sheets. Observations indicate that ice stream variability plays an important role in the current mass balance ...
Pleistocene to Modern Deformation of the Central Los Angeles Basin
(2015-09-02)
We combine the principles of sequence stratigraphy and syntectonic (growth) stratigraphy to assess deformation of the central Los Angeles (LA) basin from the late Pleistocene to the present. Sequence stratigraphy provides ...
Imprints of Geodynamic Processes on the Paleoclimate Record
(2016-05-18)
In this thesis I investigate how solid Earth deformation associated with glacial isostatic adjustment and mantle convection impacted ice age climate. In particular, I discard approximations that treat the Earth's internal ...