Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 45, Issue 7, Pages 2926-2933Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1002/2018GL077477
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Funding
- NASA Outer Planets Research and Planetary Geology and Geophysics Programs [NNN13D466T, NMO710830]
- National Science Foundation, NSF grant [AST-1313485]
- Leverhulme Trust
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Analysis of Galileo Near-Infrared Mapping Spectrometer observations of Marduk Fluctus, a volcano on the Jovian moon lo, 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 lo. These data promise to be of particular use in understanding the mechanics of explosive volcanic processes on lo.
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