During its exploration within Gusev crater between sol 01 and sol 158, the Spirit rover dug three trenches (Fig. 1) to expose the subsurface regolith [1, 2, 9]. Laguna trench (approx. 6 cm deep, approx.203 m from the rim of Bonneville crater) was dug in Laguna Hollow at the boundary of the impact ejecta from Bonneville crater and the surrounding plains. The Big Hole trench (approx. 6-7 cm deep) and The Boroughs trench (approx. 11 cm deep) were dug in the plains between the Bonneville crater and the Columbia Hills (approx.556 m and approx.1698 m from the rim of Bonneville crater respectively). The top, wall and floor regolith of the three trenches were investigated using the entire set of Athena scientific instruments [10].


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    Title :

    Sulfate Deposition in Regolith Exposed in Trenches on the Plains Between the Spirit Landing Site and Columbia Hills in Gusev Crater, Mars


    Contributors:
    Wang, Alian (author) / Haskin, L. A. (author) / Squyres, S. W. (author) / Arvidson, R. (author) / Crumpler, L. (author) / Gellert, R. (author) / Hurowitz, J. (author) / Schroeder, C. (author) / Tosca, N. (author) / Herkenhoff, K. (author)


    Publication date :

    2005-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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