Discovery of a Powerful, Transient, Explosive Thermal Event at Marduk Fluctus, Io, in Galileo NIMS Data

Davies, A. G. and Davies, R. L. and Veeder, G. J. and de Kleer, K. and de Pater, I. and Matson, D. L. and Johnson, T. V. and Wilson, L. (2018) Discovery of a Powerful, Transient, Explosive Thermal Event at Marduk Fluctus, Io, in Galileo NIMS Data. Geophysical Research Letters, 45 (7). pp. 2926-2933. ISSN 0094-8276. doi:10.1002/2018gl077477. https://resolver.caltech.edu/CaltechAUTHORS:20190424-103159776

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Abstract

Analysis of Galileo Near‐Infrared Mapping Spectrometer observations of Marduk Fluctus, a volcano on the Jovian moon Io, reveals a style of volcanic activity not previously seen there—a powerful thermal event lasting only a few minutes in 1996. The thermal emission rapidly fades, suggesting extremely rapid cooling of small clasts. The duration and evolution of the explosive eruption are akin to what might be expected from a strombolian or vulcanian explosion. The presence of such events provides an additional volcanic process that can be imaged by future missions with the intent of determining lava composition from eruption temperature, an important constraint on the internal composition of Io. These data promise to be of particular use in understanding the mechanics of explosive volcanic processes on Io.

Item Type:

Article

Related URLs:

URL	URL Type	Description
https://doi.org/10.1002/2018gl077477	DOI	Article

ORCID:

Author	ORCID
Davies, A. G.	0000-0003-1747-8142
Davies, R. L.	0000-0002-3324-4824
de Kleer, K.	0000-0002-9068-3428
de Pater, I.	0000-0002-4278-3168
Wilson, L.	0000-0003-3284-3515

Additional Information:

© 2018. American Geophysical Union. Received 6 FEB 2018. Accepted 9 MAR 2018. Accepted article online 14 MAR 2018. Published online 6 APR 2018. This work was performed at the Jet Propulsion Laboratory‐California Institute of Technology, under contract to NASA. We thank A.S. McEwen and D.A. Williams for their reviews. A.G.D. thanks the NASA Outer Planets Research and Planetary Geology and Geophysics Programs for past support under awards NNN13D466T and NMO710830. The research was partially supported by the National Science Foundation, NSF grant AST‐1313485 to UC Berkeley. L.W. thanks the Leverhulme Trust for an Emeritus Fellowship. NIMS data are available from the NASA Planetary Data System. © Caltech 2018.

Group:

Astronomy Department

Funders:

Funding Agency	Grant Number
NASA/JPL/Caltech	UNSPECIFIED
NASA	NNN13D466T
NASA	NMO710830
NSF	AST-1313485
Leverhulme Trust	UNSPECIFIED

Subject Keywords:

Io; Volcanism; Remote sensing; Thermal emission; Infrared; Galilean satellites

Issue or Number:

DOI:

10.1002/2018gl077477

Record Number:

CaltechAUTHORS:20190424-103159776

Persistent URL:

https://resolver.caltech.edu/CaltechAUTHORS:20190424-103159776

Official Citation:

Davies, A. G., Davies, R. L., Veeder, G. J., Kleer, K., Pater, I., Matson, D. L., et al. ( 2018). Discovery of a powerful, transient, explosive thermal event at Marduk Fluctus, Io, in Galileo NIMS data. Geophysical Research Letters, 45, 2926– 2933. https://doi.org/10.1002/2018GL077477

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ID Code:

94916

Collection:

CaltechAUTHORS

Deposited By:

George Porter

Deposited On:

24 Apr 2019 17:41

Last Modified:

16 Nov 2021 17:08

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