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Posts by Jon D. Blundy

v14n2 About This Issue, John Eiler, Conferences, Propose Topic

We are excited to announce that John M. Eiler, Robert P. Sharp Professor of Geology and Geochemistry at the California Institute of Technology (USA) has agreed to join the Elements editorial team as our next geochemistry editor. His official term begins January 2019. He will replace Friedhelm von Blanckenburg whose term of office ends December 2018. We will introduce John more formally at a later date.

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Crustal Magmatic Systems from the Perspective of Heat Transfer

Crustal magmatic systems are giant heat engines, fed from below by pulses of hot magma, and depleted by loss of heat to their surroundings via conduction or convection. Heat loss drives crystallization and degassing, which change the physical state of the system from relatively low-viscosity, eruptible melt, to high-viscosity, immobile, partially molten rock. We explore the temporal evolution of incrementally grown magmatic systems using numerical models of heat transfer. We show that their physical characteristics depend on magma emplacement rates and that the majority of a magma system’s lifetime is spent in a highly crystalline state. We speculate about what we can, and cannot, learn about magmatic systems from their volcanic output.

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