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, scientists have found evidence of an enormous, ancient volcano – and, possibly, a buried sheet of glacier ice. The discovery makes the equatorial site an attractive option in the search for signs of ancient life on the dry and dusty planet.
"This area of Mars is known to have a wide variety of hydrated minerals spanning a long stretch of Martian history. A volcanic setting for these minerals had long been suspected. So, it may not be too surprising to find a volcano here,"of the University of Maryland."In some sense, this large volcano is a long-sought 'smoking gun'."
There are also a number of mesas in the center that form an arc shape, sketching out the conical shape of the volcano, that slopes down into lava fields that surround the broken jumble of geology. Volcanic deposits have been identified in several places; the team's study points out a region of volcanic deposits some 5,000 square kilometers around the volcano.The size of the volcano and the complexity of the terrain around it suggest that it was active for a very long time.
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