Mountain1 - Mountains Galileo greyscale image of Tohil...

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Mountains Galileo greyscale image of Tohil Mons , a 5.4 km tall mountain Io has 100 to 150 mountains. These structures average 6 km (4 mi) in height and reach a maximum of 17.5 ± 1.5 km (10.9 ± 0.9 mi) at South Boösaule Montes . [9] Mountains often appear as large (the average mountain is 157 km or 98 mi long), isolated structures with no apparent global tectonic patterns outlined, as is the case on Earth. [9] To support the tremendous topography observed at these mountains requires compositions consisting mostly of silicate rock, as opposed to sulfur. [83] Despite the extensive volcanism that gives Io its distinctive appearance, nearly all its mountains are tectonic structures, and are not produced by volcanoes. Instead, most Ionian mountains form as the result of compressive stresses on the base of the lithosphere, which uplift and often tilt chunks of Io's crust through thrust faulting . [84]
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Mountain1 - Mountains Galileo greyscale image of Tohil...

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