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Showing posts with label action of liquid water. Show all posts
Showing posts with label action of liquid water. Show all posts

Tuesday, September 18, 2012

Mars formed by the action of liquid water


Discovered in 2005, the clays in the southern hemisphere of Mars are often considered as a proof of the survival of liquid water on the Red Planet at a very early period of between 4.5 and 4 billion years. But the work of a Franco-American team led by researchers at the Institute of Chemistry of materials and environments Poitiers (CNRS / University de Poitiers) [1] questioned this interpretation. In an article to be published on September 9 on the website of the journal Nature Geosciences, they show that these clays are likely to be of magmatic origin. The many similarities between the Martian clays and those of volcanic origin collected on the Murrow atoll support their hypothesis.