Volcanic features of Io

Io: Heat flow from small volcanic features

We identify nine new faint thermal sources on Io via color ratio images constructed from relatively high spatial resolution Galileo NIMS data acquired late in the mission. All of these identifications are associated with small dark paterae. We utilize NIMS data to quantify their volcanic thermal emission as 0.53 10 W (or 0.5% of Io’s total heat flow). In addition, we refine our previous estimat...

Galileo Observations of Volcanic Plumes on Io

Co-analysis of Galileo imaging observations of the gas and dust components of Io’s plumes suggests that the deposits produced by Prometheus-type plumes are made up of pyroclastic particles that are entrained with the gas flow. Peletype plumes, in contrast, deposit material that could be condensed from the gas phase. Introduction: Many outstanding questions remain to be answered about Io’s spect...

Volcanic Topography of Io: the Final Chapter

Oxidation State of Volcanic Gases on Io

Gish Bar Patera, Io: Geology and Volcanic

Introduction: Since the two Voyagers passed by Jupiter in 1979, it has been known that volcanic activity is ubiquitous on the surface of Io. With over 400 volcanic centers, Io is even more volcanically active than the earth with massive flood basalt-style eruptions and komatitite lavas a common occurrence. Additionally , some volcanoes appear to be giant lava lakes, with violent activity churni...