Possible Traces of Hydrothermal Venting in Aeolis
نویسنده
چکیده
Introduction: Small cone-shaped features have been identified in several regions on Mars, e.g. in Isidis Planitia, Elysium Planitia, Amazonis Planitia, Acidalia Planitia, southern Utopia Planita, in the Cydonia Region, in Cerberus Planum, around Phlegra Montes and on several volcanic flanks. They vary greatly in size and morphology and have been compared to terrestrial features of various origins namely (1) cinder cones (e.g. [1]), (2) tuff cones or tuff rings (e.g. [2]), (3) rootless cones (pseudocraters) (e.g. [3], [4]), (4) pingos (e.g. [5] or (5) mud volcanoes (e.g. [6]). They are often associated with volcanic centres and large lava fields or cluster in regions where the volatile content of the Martian regolith was/is supposedly high. It is generally assumed that (ground-) water or ground ice was a trigger or driving force of cone formation. They could therefore, be an important indicator of the history of water on the planet.
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