Slow-moving and far-travelled dense pyroclastic flows during the Peach Spring super-eruption

Pyroclastic flows of the 18.8 Ma Peach Spring Tuff super-eruption travelled >170 km and entrained substrate blocks up to ∼1 m diameter. Here, the authors show that these flows had a dense base and speeds of ∼5-20 m s−1, fed by an eruption discharging magma at rates up to ∼107-108 m3 s−1for at lea...

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Auteurs principaux: O. Roche, D. C. Buesch, G. A. Valentine
Format: article
Langue:EN
Publié: Nature Portfolio 2016
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Accès en ligne:https://doaj.org/article/bd1f5ed4262d4c17a9c9b273a4c85498
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Résumé:Pyroclastic flows of the 18.8 Ma Peach Spring Tuff super-eruption travelled >170 km and entrained substrate blocks up to ∼1 m diameter. Here, the authors show that these flows had a dense base and speeds of ∼5-20 m s−1, fed by an eruption discharging magma at rates up to ∼107-108 m3 s−1for at least 2.5-10 h.