Timescales for pluton growth, magma-chamber formation and super-eruptions

M. E. Zalinge, D. F. Mark, R. S. J. Sparks (), M. M. Tremblay, C. B. Keller, F. J. Cooper and A. Rust
Additional contact information
M. E. Zalinge: University of Bristol
D. F. Mark: Scottish Universities Environmental Research Centre
R. S. J. Sparks: University of Bristol
M. M. Tremblay: Purdue University
C. B. Keller: Dartmouth College
F. J. Cooper: University of Bristol
A. Rust: University of Bristol

Nature, 2022, vol. 608, issue 7921, 87-92

Abstract: Abstract Generation of silicic magmas leads to emplacement of granite plutons, huge explosive volcanic eruptions and physical and chemical zoning of continental and arc crust1–7. Whereas timescales for silicic magma generation in the deep and middle crust are prolonged8, magma transfer into the upper crust followed by eruption is episodic and can be rapid9–12. Ages of inherited zircons and sanidines from four Miocene ignimbrites in the Central Andes indicate a gap of 4.6 Myr between initiation of pluton emplacement and onset of super-eruptions, with a 1-Myr cyclicity. We show that inherited zircons and sanidine crystals were stored at temperatures

Date: 2022
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DOI: 10.1038/s41586-022-04921-9

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