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Geologic map of Arsia Mons Volcano, Mars Geologic map of Arsia Mons Volcano, Mars
The geologic map shows the flanks and summit caldera of Arsia Mons, the southernmost of three large shield volcanoes (Arsia, Pavonis, and Ascraeus Montes) that form the Tharsis Montes volcanic chain (fig. 1). The volcanoes lie along the crest of a regional northeast-trending rise that extends more than 3,000 km along or near the planet-wide boundary that separates the southern highlands...