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A structural study of an interior layered deposit in southwestern Candor Chasma, Valles Marineris, Mars, using high resolution stereo camera data from Mars Express
Department of Earth Sciences, Brock University, St. Catharines, Ontario, Canada
Pangaea Scientific, Brockville, Ontario, Canada
Department of Earth Sciences, Brock University, St. Catharines, Ontario, Canada
Institute of Planetary Research, German Aerospace Center (DLR), Berlin, Germany
Institute of Planetary Research, German Aerospace Center (DLR), Berlin, Germany
Institute of Planetary Research, German Aerospace Center (DLR), Berlin, Germany
Faculty of Geosciences, Utrecht University, Utrecht, Netherlands
Institute of Geological Sciences, Free University, Berlin, Germany
An interior layered deposit (ILD) within Western Candor Chasma of Valles Marineris, Mars, is examined using data from the High Resolution Stereo Camera of the Mars Express mission. Most ILD layers dip in the same direction as the topographic slope. Exposed, rotated fault blocks of basement lithology appear to penetrate the cover of this ILD deposit in at least two locations. These features suggest a simple drape morphology over basement topography consisting of rotated fault blocks. This interpretation constrains possible hypotheses of ILD formation and suggests a limit on total volume of ILD material. Draping implies low-energy deposition, either subaerially or in deep water, and that the total volume of ILD is considerably less than indicated by the size of the mound. A dark competent unit unconformably caps part of the ILD indicating a multistage depositional history.
Received 24 October 2005; accepted 28 February 2006; published 1 April 2006.
Citation: (2006), A structural study of an interior layered deposit in southwestern Candor Chasma, Valles Marineris, Mars, using high resolution stereo camera data from Mars Express, Geophys. Res. Lett., 33, L07202, doi:10.1029/2005GL025035.
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