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A mechanism for spontaneous self-perpetuating volcanism on the terrestrial planets

Tackley, P. J. and Stevenson, D. J. (1993) A mechanism for spontaneous self-perpetuating volcanism on the terrestrial planets. In: Flow and creep in the solar system: observations, modeling, and theory. NATO ASI series E. No.391. Kluwer Academic , Dordrecht, pp. 307-321. ISBN 9780792321484.

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We present a model for self-perpetuating magmatism resulting from Rayleigh-Taylor like instabilities developing spontaneously in regions that are partially molten, or at the solidus. The mechanism is capable of generating large volumes of magma without the need of a plume, or other deep source. Numerical models have been used to determine characteristic timescales, spacings and eruption rates in terms of nondimensional parameters. Scaled to realistic parameter space, the results correspond to timescales and eruption rates compatible with observations of small-scale intra-plate volcanism. Applications to oceanic seamount production, volcano spacing and rapid lithospheric erosion are discussed.

Item Type:Book Section
Stevenson, D. J.0000-0001-9432-7159
Additional Information:© 1993 Kluwer Academic Publishers. We are grateful to David Scott for furnishing us with his finite element code. We thank Don Anderson for a thoughtful review of the manuscript and helpful suggestions, and Craig Scrivner and Helen Qian for improving the quality of the text. The work benefitted from discussions with Geoff Davies. Supported by NSF grant EAR9017893. Contribution Number 5147, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125.
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Caltech Division of Geological and Planetary Sciences5147
Series Name:NATO ASI series E
Issue or Number:391
Record Number:CaltechAUTHORS:20130802-125515375
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39735
Deposited By: Tony Diaz
Deposited On:19 Aug 2013 21:53
Last Modified:03 Oct 2019 05:10

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