Large-scale experiments on volcanic processes

Greg A. Valentine, Costanza Bonadonna, Irene Manzella, Amanda Clarke, Pierfrancesco Dellino

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Some of the least understood and most hazardous geologic processes involve complex multiphase flows, particularly those related to explosive volcanic eruptions. These phenomena inherently involve a wide range of characteristic length and time scales, as well as processes that are coupled across those scales in a range of flow regimes. For example, a pyroclastic density current's (pyroclastic flows and surges) behavior is governed in a complex way by the interactions between individual particles (∼10-4 to 10 1 meters, ∼10-1 to 101 seconds) and by turbulent mixing with surrounding air (∼10-2 to 102 meters, 1 to 102 seconds). Material properties within individual flows can vary over huge ranges; for example, when ascending magma interacts with groundwater in a volcanic conduit, the viscous melt and liquid water are transformed into brittle glass and steam.

Original languageEnglish (US)
Pages (from-to)89-90
Number of pages2
JournalEos
Volume92
Issue number11
DOIs
StatePublished - 2011

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pyroclastic flow
turbulent mixing
multiphase flow
density current
explosive
volcanic eruption
experiment
glass
magma
melt
timescale
liquid
groundwater
air
water
particle
material

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

Valentine, G. A., Bonadonna, C., Manzella, I., Clarke, A., & Dellino, P. (2011). Large-scale experiments on volcanic processes. Eos, 92(11), 89-90. https://doi.org/10.1029/2011EO110001

Large-scale experiments on volcanic processes. / Valentine, Greg A.; Bonadonna, Costanza; Manzella, Irene; Clarke, Amanda; Dellino, Pierfrancesco.

In: Eos, Vol. 92, No. 11, 2011, p. 89-90.

Research output: Contribution to journalArticle

Valentine, GA, Bonadonna, C, Manzella, I, Clarke, A & Dellino, P 2011, 'Large-scale experiments on volcanic processes', Eos, vol. 92, no. 11, pp. 89-90. https://doi.org/10.1029/2011EO110001
Valentine GA, Bonadonna C, Manzella I, Clarke A, Dellino P. Large-scale experiments on volcanic processes. Eos. 2011;92(11):89-90. https://doi.org/10.1029/2011EO110001
Valentine, Greg A. ; Bonadonna, Costanza ; Manzella, Irene ; Clarke, Amanda ; Dellino, Pierfrancesco. / Large-scale experiments on volcanic processes. In: Eos. 2011 ; Vol. 92, No. 11. pp. 89-90.
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