High-Temperature Silicate Volcanism on Jupiter's Moon Io-Reference-Cited by-同舟云学术

High-Temperature Silicate Volcanism on Jupiter's Moon Io

Published:1998-07-03 Issue:5373 Volume:281 Page:87-90
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

McEwen A. S.¹,Keszthelyi L.¹,Spencer J. R.¹,Schubert G.¹,Matson D. L.¹,Lopes-Gautier R.¹,Klaasen K. P.¹,Johnson T. V.¹,Head J. W.¹,Geissler P.¹,Fagents S.¹,Davies A. G.¹,Carr M. H.¹,Breneman H. H.¹,Belton M. J. S.¹

Affiliation:

1. A. S. McEwen, L. Keszthelyi, P. Geissler, Lunar and Planetary Lab, University of Arizona, Tucson, AZ 85711, USA. J. R. Spencer, Lowell Observatory, Flagstaff, AZ 86001, USA. G. Schubert, Department of Earth and Space Sciences, University of California Los Angeles, Los Angeles, CA 90095, USA. D. L. Matson, R. Lopes-Gautier, K. P. Klaasen, T. V. Johnson, A. G. Davies, H. H. Breneman, Jet Propulsion Laboratory, Pasadena, CA 91109, USA. J. W. Head, Department of Geological Science, Brown University,...

Abstract

Infrared wavelength observations of Io by the Galileo spacecraft show that at least 12 different vents are erupting lavas that are probably hotter than the highest temperature basaltic eruptions on Earth today. In at least one case, the eruption near Pillan Patera, two independent instruments on Galileo show that the lava temperature must have exceeded 1700 kelvin and may have reached 2000 kelvin. The most likely explanation is that these lavas are ultramafic (magnesium-rich) silicates, and this idea is supported by the tentative identification of magnesium-rich orthopyroxene in lava flows associated with these high-temperature hot spots.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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