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The 1950 sulfur flow of Mauna Loa: Considerations for IoSome of the geological relationships observed in the Mauna Loa sulfur flow may apply in considering volcanic processes on Io. Given the presence of sulfur/sulfur compounds in the eruption plumes and on the surface of Io, it is likely that extensive secondary deposits of sulfur exist, some of which may be of fumarolic origin and analogous to the Mauna Loa deposit. Given the likelihood of silicate volcanism of Io based on the inferred material properties of some flows, and the attendant high temperatures for silicate volcanism, it is likely that the secondary surface deposits of sulfur would have been mobilized without being heated to the high viscosity stage. Mobilized sulfur flows on Io may flow long distances as a result of: (1) low viscosities in the melting range; (2) sustained effusion resulting from continued heating source area; (3) continued remobilization within the flow as a consequence of surges from the source; and (4) extension via lava tubes, or similar conduits through which there is little heat loss. Sulfur flows may form a relatively thin veneer over silicate flows and other surface units, given their fluidity and low mobilization temperature. Active splashing and splattering may spread sulfur over a wider area contributing the bright blooms observed in association with some Ionian flows.
Document ID
19840015411
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Greeley, R.
(Arizona State Univ. Tempe, AZ, United States)
Theilig, E.
(Arizona State Univ. Tempe, AZ, United States)
Christensen, P.
(Arizona State Univ. Tempe, AZ, United States)
Date Acquired
August 12, 2013
Publication Date
April 1, 1984
Publication Information
Publication: NASA. Washington Rept. of Planetary Geol. Program, 1983
Subject Category
Geophysics
Accession Number
84N23479
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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