Climbing the crustal ladder: Magma storage-depth evolution during a volcanic flare-up

Very large eruptions (>50 km ) and supereruptions (>450 km ) reveal Earth's capacity to produce and store enormous quantities (>1000 km ) of crystal-poor, eruptible magma in the shallow crust. We explore the interplay between crustal evolution and volcanism during a volcanic flare-up i...

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Bibliographic Details
Published in:Science advances 2018-10, Vol.4 (10), p.eaap7567-eaap7567
Main Authors: Gualda, Guilherme A R, Gravley, Darren M, Connor, Michelle, Hollmann, Brooke, Pamukcu, Ayla S, Bégué, Florence, Ghiorso, Mark S, Deering, Chad D
Format: Article
Language:English
Subjects:
Geology
Geophysics
GEOSCIENCES
SciAdv r-articles
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Summary:Very large eruptions (>50 km ) and supereruptions (>450 km ) reveal Earth's capacity to produce and store enormous quantities (>1000 km ) of crystal-poor, eruptible magma in the shallow crust. We explore the interplay between crustal evolution and volcanism during a volcanic flare-up in the Taupo Volcanic Zone (TVZ, New Zealand) using a combination of quartz-feldspar-melt equilibration pressures and time scales of quartz crystallization. Over the course of the flare-up, crystallization depths became progressively shallower, showing the gradual conditioning of the crust. Yet, quartz crystallization times were invariably very short (
ISSN:2375-2548
2375-2548
DOI:10.1126/sciadv.aap7567