Concentric Crater Fill
Concentrically- lineated crater-filling deposits in the mid-latitude (30–60° N and S) regions of Mars (Levy et al. 2010).
Large, thick accumulation of debris at the base of high-standing crater walls with a gentle downsloping surface and a convex lobate terminus (in cross-section). Multiple ridges and lineations are often observed concentric to the crater rim (Squyres 1979). Surface texture appears mounded and furrowed at 1–20 m resolution. Concentric crater fill may host ring-mold craters (Levy et al. 2010).
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