Tag Archives: mudstones

Potassium-argon dating of Mojave2 sample by Curiosity finds Amazonian-age jarosite

On the basis of studies of impact crater densities on Mars’s surface, scientists have separated the Red Planet’s geologic history into three broad divisions, the most recent of which is the Amazonian epoch. Because of the lack of available samples … Continue reading

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Gale Crater’s rock-ingredient stew seen as plus for habitability

Editor’s note: Press conference video here. NASA’s Curiosity rover is climbing a layered Martian mountain and finding evidence of how ancient lakes and wet underground environments changed, billions of years ago, creating more diverse chemical environments that affected their favorability … Continue reading

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Curiosity: Contact at Missoula

Sol 1051, July 22, 2015. Released as part of the news about Curiosity’s instruments finding silica-rich rocks is this mosaic of MAHLI images of the Missoula outcrop. Pale mudstone (bottom of outcrop) meets coarser sandstone (top) in this geological contact … Continue reading

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