Perseverance has Found a Nice Patch of Sandstone on Mars - by spacewriter
“We often prioritize the study of fine-grained sedimentary rocks like this one in our search for organics and potential biosignatures,” said Katie Stack Morgan, Perseverance deputy project scientist at NASA’s Jet Propulsion Laboratory in Southern California. “What’s especially interesting about the Yori Pass outcrop is that it is laterally equivalent to ‘Hogwallow Flats,’ where we found very fine-grained sedimentary rocks.
Hogwallow Flats is a region where Perseverance also studied sandstones. As mentioned above, when water deposits sand and other rocks, it carries along other stuff. It all becomes part of the rock record, too. In particular, Martian clay and mudstones interest planetary scientists. That’s because clays can “bind” organic molecules to themselves and protect them from environmental degradation.
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