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  2. Chloride-bearing deposits on Mars - Wikipedia

    en.wikipedia.org/wiki/Chloride-Bearing_Deposits...

    On Earth, chlorides are known to form through aqueous processes. [2] Similar processes are expected to be responsible for the formation of chloride deposits on Mars. The finding of these deposits is significant in that it provides further evidence for the presence of surface or subsurface water in ancient Mars. [3]

  3. Composition of Mars - Wikipedia

    en.wikipedia.org/wiki/Composition_of_Mars

    This deposit may represent a time when Mars had abundant liquid water on its surface. Scale bar is 250 kilometres (160 mi) long. Layered sedimentary deposits are widespread on Mars. These deposits probably consist of both sedimentary rock and poorly indurated or unconsolidated sediments.

  4. Martian regolith - Wikipedia

    en.wikipedia.org/wiki/Martian_regolith

    Curiosity 's view of Martian soil and boulders after crossing the "Dingo Gap" sand dune (February 9, 2014; image transformed to Earth-like atmospheric view, original image). Martian regolith is the fine blanket of unconsolidated, loose, heterogeneous superficial deposits covering the surface of Mars.

  5. Evidence of water on Mars found by Mars Reconnaissance ...

    en.wikipedia.org/wiki/Evidence_of_water_on_Mars...

    [27] [28] [29] The earliest evidence of life on Earth appear in seafloor deposits that are similar to those found in the Eridania basin. [30] So, samples of material from the Eridania may give us insight into the environment of the early Earth. Chloride deposits were found where a shoreline existed. They were deposited as water evaporated from ...

  6. Scientific information from the Mars Exploration Rover mission

    en.wikipedia.org/wiki/Scientific_information...

    All the rocks contain a fine coating of dust and one or more harder rinds of material. One type can be brushed off, while another needed to be ground off by the Rock Abrasion Tool (RAT). [11] There are a variety of rocks in the Columbia Hills (Mars), some of which have been altered by water, but not by very much water.

  7. A rover has been collecting rocks from Mars for years. How ...

    www.aol.com/news/rover-collecting-rocks-mars...

    Here's everything to know about the Mars rock samples, potential plans to get them to Earth and what's next for Perseverance: The year ahead in space travel: Uncrewed lunar missions and 1st ...

  8. Geology of Mars - Wikipedia

    en.wikipedia.org/wiki/Geology_of_Mars

    The northern part is an enormous topographic depression. About one-third of the surface (mostly in the northern hemisphere) lies 3–6 km lower in elevation than the southern two-thirds. This is a first-order relief feature on par with the elevation difference between Earth's continents and ocean basins. [12]

  9. Lakes on Mars - Wikipedia

    en.wikipedia.org/wiki/Lakes_on_Mars

    So, samples of material from the Eridania may give us insight into the environment of the early Earth. Chloride deposits were found where a shoreline existed. They were deposited as water evaporated from the sea. These chloride deposits are thought to be thin (less than 30 meters), because some craters do not display the chemical in their ejecta.