Thesiss

Major explosive eruptions of Krakatau volcano, Indonesia, during the last 8,000 years have discharged crystal-poor calc-alkaline dacites and rhyodacites. The geochemistry and petrography of these rocks indicate that fractional crystallization of a basaltic parent produced these …

The interior structures of planetary bodies beyond the Earth are broadly unknown. Our observational capacity is largely limited to surface imagery from spacecraft. The work presented in this dissertation uses novel modeling methods of melt migration and melt focusing processes t…

This work documents processes of rhyolitic and mixed rhyolitic-basaltic magmatism and volcanism at Krafla central volcano, northeast Iceland, from two perspectives: 1) field studies of the mixed basalt-rhyolite Halarauður eruption associated with major caldera collapse at ca. 11…