Volcanic eruptions on Io - Implications for surface evolution and mass lossActive volcanism on Io results in a continual resurfacing of the satellite. Analysis of required burial rates to erase impact craters, the mass production in the observed plumes, and the energy requirements for the volcanic activity suggest resurfacing rates of 0.001 to 10 cm/yr in recent geologic time. If this rate is typical of the last 4.5 Gyr, then extensive recycling of the upper crust and mantle must have occurred. The currently estimated loss rate of S, O, and Na from Io into the magnetosphere corresponds to only a small fraction of the resurfacing rate and should not have resulted in either extensive erosion or total depletion of any of the escaping species.
Other - Collected Works
Johnson, T. V. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Soderblom, L. A. (U.S. Geological Survey Flagstaff, AZ, United States)
August 11, 2013
January 1, 1982
LUNAR AND PLANETARY EXPLORATION
CONTRACT_GRANT: NASA ORDER W-08395 CONTRACT_GRANT: NAS7-100 CONTRACT_GRANT: NASA ORDER W-13709 PROJECT: PROJECT VOYAGER