'Large scale deposits' presentation slideshows

Background There are several theories that state that Martian sinkholes as the result of large evaporite deposits and er

Background There are several theories that state that Martian sinkholes as the result of large evaporite deposits and erosion are impossible. The past presence of large oceans as well as the detection of gypsum, halite, calcite, and clays in Martian meteorites seems to

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