Evidence of depositional settings variation at the Jura/Knockfarril hill members transition in the Glen Torridon region (Gale Crater, Mars) - Archive ouverte HAL
Communication Dans Un Congrès Année : 2021

Evidence of depositional settings variation at the Jura/Knockfarril hill members transition in the Glen Torridon region (Gale Crater, Mars)

Résumé

Since Jan. 2019 (~sol 2300), the Mars Science Laboratory rover Curiosity has been ex-ploring the Glen Torridon (GT) region of Gale Crater, seeking to examine clay-bearing strata initially detected using orbiter data [1]. The presence of hydrated clay minerals has major implications for understanding the wet early Mars. The sedimentary record of the GT re-gion is comprised of mudstones interbedded with very fine- to medium-grained sandstones of the Jura and Knockfarril Hill (KHm) members of the Murray Fm., respectively [2]. However, their varying sedimentary, stratigraphic, and geochemical characteristics suggest potential changes in the depositional settings that could have favored enhanced accumulation and/or in situ for-mation of secondary clay minerals [e.g., 3]. Here, we examine the sedimentary and geochemical records of four major outcrops (Woodland Bay, Teal Ridge, Strathdon area and Glen Etive) in the northern part of GT, an area where exceptionally developed outcrops are present.
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Dates et versions

hal-03143058 , version 1 (16-02-2021)

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Gwénaël Caravaca, Nicolas Mangold, Erwin Dehouck, Juergen Schieber, Alexander B Bryk, et al.. Evidence of depositional settings variation at the Jura/Knockfarril hill members transition in the Glen Torridon region (Gale Crater, Mars). 52nd Lunar and Planetary Science Conference, Lunar and Planetary Institute, Mar 2021, The Woodlands, United States. ⟨hal-03143058⟩
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