Slow-moving and far-travelled dense pyroclastic flows during the Peach Spring super-eruption.
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ABSTRACT:
SUBMITTER: Roche O
PROVIDER: S-EPMC4786679 | biostudies-literature | 2016 Mar
REPOSITORIES: biostudies-literature
Publications
Slow-moving and far-travelled dense pyroclastic flows during the Peach Spring super-eruption.
Roche O O Buesch D C DC Valentine G A GA
Nature communications 20160307
Explosive volcanic super-eruptions of several hundred cubic kilometres or more generate long run-out pyroclastic density currents the dynamics of which are poorly understood and controversial. Deposits of one such event in the southwestern USA, the 18.8 Ma Peach Spring Tuff, were formed by pyroclastic flows that travelled >170 km from the eruptive centre and entrained blocks up to ∼ 70-90 cm diameter from the substrates along the flow paths. Here we combine these data with new experimental resul ...[more]
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