It is fascinating to see how much geological history the team has been able to uncover with the various point measurements and a stratigraphic analysis.  The best summary I know of is in this article in <i>Science</i> (<a href="http:&#x2F;&#x2F;www.sciencemag.org&#x2F;content&#x2F;350&#x2F;6257&#x2F;aac7575.abstract?sid=4250fa26-519a-4e0c-bec2-907515c707fc" rel="nofollow">http:&#x2F;&#x2F;www.sciencemag.org&#x2F;content&#x2F;350&#x2F;6257&#x2F;aac7575.abstract?...</a>), which documents the discovery of stream beds feeding an ancient lake within Gale crater, river delta formations with progressively finer sediments, and small eroded canyons.  It&#x27;s impressive work.<p>(Full text article appears to be here: <a href="https:&#x2F;&#x2F;www.researchgate.net&#x2F;profile&#x2F;Linda_Kah&#x2F;publication&#x2F;282734758_Deposition_exhumation_and_paleoclimate_of_an_ancient_lake_deposit_Gale_crater_Mars&#x2F;links&#x2F;561bb9e308ae78721fa102b8.pdf" rel="nofollow">https:&#x2F;&#x2F;www.researchgate.net&#x2F;profile&#x2F;Linda_Kah&#x2F;publication&#x2F;2...</a>)