Paleomagnetism and Geochemistry of Basalts in the North American Cordillera, Davis Strait, and Antarctica

Citation

Biasi, Joseph Anthony (2021) Paleomagnetism and Geochemistry of Basalts in the North American Cordillera, Davis Strait, and Antarctica. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/hbs7-aw47. https://resolver.caltech.edu/CaltechTHESIS:06022021-013516525

Abstract

Chapter 1 is an introduction to the thesis and contains a brief summary on how the chapters relate to each other. In Chapter 2, we present new whole-rock geochemical data from the Brooks Range Ophiolite (BRO) together with new mineral chemistry data from the BRO, South Sandwich forearc, Izu-Bonin forearc, and Hess Deep. In Chapter 3, we use a combination of paleomagnetic data and thermal modeling to create a magnetic geothermometer (MGT) that can constrain the active transport lifetime of magmatic conduits and igneous intrusions. In Chapter 4, we present new stratigraphic and paleomagnetic data from Paleocene flood basalts on Baffin Island. In Chapter 5, we present new paleomagnetic and paleointensity data from the James Ross Island volcanic group, located on the Antarctic Peninsula.

Thesis Files