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Elysium Mons is a volcano on Mars located in the volcanic province Elysium, at , in the Martian eastern hemisphere. It stands about above the surrounding lava plains, and about above the Martian ''datum''. Its diameter is about , with a summit caldera about across. It is flanked by the smaller volcanoes Hecates Tholus to the northeast, and Albor Tholus to the southeast. Elysium Mons was discovered in 1972 in images returned by the Mariner 9 orbiter. The terrestrial volcano Emi Koussi (in Chad) has been studied as an analog of Elysium Mons. The two shield volcanoes have summit calderas of similar size, but Elysium Mons is 3.5 times larger in diameter and 6 times higher than its counterpart on Earth. Image:MOLA elysium mons.jpg|Topography of the Elysium Mons area, from MOLA Image:Elysium Mons.gif|''Mars Global Surveyor'' view of the summit area Image:Elysium Mons Caldera.JPG|Rim of Elysium Mons caldera, as seen by HiRISE ==See also== *Geography of Mars *List of mountains on Mars by height *List of tallest mountains in the Solar System 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Elysium Mons」の詳細全文を読む スポンサード リンク
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