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EARLY MARS

Meeting models and mineralogy

A new geochemical study shows that short-lived warm and wet episodes during a globally cold early Mars could have formed the clay deposits detected on the Martian surface. This model can reconcile climate models with mineralogical and geomorphological evidence.

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Fig. 1: A MastCam view of the clay-rich unit in Gale Crater, 18.5 km and five years from the start of Curiosity’s traverse, obtained by the rover on 24 January 2017.

NASA/JPL-Caltech/MSSS

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Correspondence to John C. Bridges.

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Bridges, J.C. Meeting models and mineralogy. Nat Astron 2, 190–191 (2018). https://doi.org/10.1038/s41550-018-0412-5

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