[Dingwell] Towards timescales of assimilation and magma mixing in the Large Igneous Province of Snake River Plain-Yellowstone, northwest United States
German Title: Towards timescales of assimilation and magma mixing in the Large Igneous Province of Snake River Plain-Yellowstone, northwest United States
Abbreviation: 262
Current Status: completed
Main Applicant:Prof. Dr. Donald Bruce Dingwell
Resources Recipient
Other Persons
Prof. Dr. Christina Maria Pinheiro de Campos
Dr. Daniele Morgavi
Conveyor
Begin:
Conveyor
End:
Conveyor
Duration:
Year: 2009
Description
The breath of magma diversities in the Snake River Plain and Yellowstone (SRP-Y) volcanic fields presents a unique opportunity to study the interaction of a hot-spot-related thermal anomaly with the continental crust and the subsequent development of magma reservoirs. As a reservoir forms, primitive magma batches induce crustal melting and assimilation, and mixing. Mixing caused by a recharge of a more primitive magma is expected to be accompanied by heating of the reservoir which may obstruct fractionation and thus to precede it. The SRP-Y holds the tale of this chemical process and therefore provides the pieces of the puzzle portraying the evolution of magmas. A series of tests is proposed to systematically characterize the evolution and importance of mixing during the lifetime of reservoirs fed by a hotspot. This work aims to (1) identify end members in the SRP, and (2) to characterize their physical (e.g., density, viscosity) and chemical (e.g., interstitial melt’s composition, volatile content) properties. In a second phase, this work will (3) assess the interaction between physical and chemical properties of the magmas involved in the SRP-Y systems; and (4) constrain changes in the timescale of assimilation and mingling in the SRP magma reservoirs.
Related Publications
Wiesmaier, S., Morgavi, D., Renggli, C. J., Perugini, D., De Campos, C. P., Hess, K. U., Ertel-Ingrisch, W., Lavallée, Y., Dingwell, D. B. (2015). "Magma mixing enhanced by bubble segregation" Solid Earth 6 p1007-1023
Morgavi, Daniele, Perugini, Diego, De Campos, Cristina P., Ertl-Ingrisch, Werner, Lavallée, Yan, Morgan, Lisa, Dingwell, Donald B. (2013). "Interactions between rhyolitic and basaltic melts unraveled by chaotic mixing experiments" Chemical Geology 346 p199-212
Morgavi, Daniele, Perugini, Diego, De Campos, Cristina P., Ertel-Ingrisch, Werner, Dingwell, Donald B. (2013). "Morphochemistry of patterns produced by mixing of rhyolitic and basaltic melts" Journal of Volcanology and Geothermal Research 253 p87-96
Perugini, D., De Campos, C. P., Dingwell, D. B., Dorfman, A. (2013). "Relaxation of concentration variance: A new tool to measure chemical element mobility during mixing of magmas" Chemical Geology 335 p8-23
Morgavi, Daniele, Perugini, Diego, De Campos, Cristina P., Ertel-Ingrisch, Werner, Dingwell, Donald B. (2013). "Time evolution of chemical exchanges during mixing of rhyolitic and basaltic melts" Contributions to Mineralogy and Petrology 166 p615-638
De Campos, Cristina P., Perugini, Diego, Ertel-Ingrisch, Werner, Dingwell, Donald B., Poli, Giampiero (2011). "Enhancement of magma mixing efficiency by chaotic dynamics: an experimental study" Contributions to Mineralogy and Petrology 161 p863-881