| Apollinaris Mons | |
|---|---|
Topography map of Apollinaris Mons |
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| Peak | 5 km |
Apollinaris Mons is a shield volcano on Mars's surface. It is situated near the equator in the south hemisphere, southeast of the shield volcano Elysium Mons on the Elysium Planitia, and north of Gusev crater. The volcano's crater is named Apollinaris Patera; this name formerly applied to the whole edifice.
Apollinaris Mons is about 5 kilometres high with a base about 296 kilometres in diameter.[1] On the top of this volcano is a small crater with an irregular border, which was probably made by an explosive, or pyroclastic, eruption. The volcano is approximately 3 billion years old[2] or possibly 3.5 billion years old.[3]
It was named in 1973 after a mountain spring near Rome in Italy.