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Saturday, July 14, 2012

Mars Express reveals that Mars has a "complex geological history"


The Mars Express space probe has discovered a wide range of tectonic features and their impact in a volcanic region of Mars reveals that the planet has "a complex geological history." probe photographed last April Meals Dorsa, a volcanic region of southern Valleys Mariners canyon regions located between the Sinai and Thaumasia Plana, reported the European Space Agency (ESA) in a statement.
The image captured wrinkle ridges, some faults that cross and surrounded by an elliptical crater eject in the form of a butterfly with the appearance of being liquid.According to experts, the elliptical craters formed when asteroids or comets hit the planet's surface at a shallow angle. Addition, the scientists explained that the eject surrounding the crater of Meals Dorsa indicates the presence of subsurface ice that melted during the impact. The image also captured the edge of another large crater that seems to have been buried for the most part during a distant era of volcanic dust and ash, which contains concentric deposits, could offer clues on the composition of the material. The crater is surrounded by several wrinkles that formed when horizontal compression forces the crust pushed upwards. The image taken by Mars Express demonstrates that Meals Dorsa region originated from different tectonic phases.

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