The origin of cyclical high- and low-Cr basalts with continental crust trace element signatures in the Kalkarindji Large Igneous Province

Gray, Benjamin M. (2015) The origin of cyclical high- and low-Cr basalts with continental crust trace element signatures in the Kalkarindji Large Igneous Province. Masters by Research thesis, Queensland University of Technology.

Abstract

The 510 million year old Kalkarindji Large Igneous Province correlates in time with the first major extinction event after the Cambrian explosion of life. Large igneous provinces correlate with all major mass extinction events in the last 500 million years. The genetic link between large igneous provinces and mass extinction remains unclear. My work is a contribution towards understanding magmatic processes involved in the generation of Large Igneous Provinces. I concentrate on the origin of variation in Cr in magmas and have developed a model in which high temperature melts intrude into and assimilate large amounts of upper continental crust.

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ID Code: 81995
Item Type: QUT Thesis (Masters by Research)
Supervisor: Murphy, David, Gust, David, Bryan, Scott, & Widdowson, Mike
Keywords: Large igneous provinces, Continental flood basalts, Kalkarindji LIP, fractional crystallisation, MELTS modelling
Divisions: Current > Schools > School of Earth, Environmental & Biological Sciences
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Institution: Queensland University of Technology
Deposited On: 12 Mar 2015 05:42
Last Modified: 08 Sep 2015 06:30

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