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PSP_002946_1765_RED_abrowse-00.jpgInterior Layered Deposits (ILD) in Juventae Chasma (CTX Frame - Natural Colors; credits for the additonal process. and color.: Dr Paolo C. Fienga - Lunexit Team)55 visiteThis observation shows a portion of some Interior Layered Deposits (ILD) in Juventae Chasma.
Juventae Chasma is a large depression near the Equatorial Canyon System known as Valles Marineris. The scene is along the top of a Mound of Layered Deposits on the Floor of Juventae Chasma.
Dunes are seen in the low-lying, darker regions. Very fine Layers are also visible. Understanding what kinds of materials formed the Layers, how they were set in place, and how they have evolved will provide insight into Martian Geologic History.
Many of the Martian Chasmata (----> plural of Chasma) contain ILD like these. The ILD were deposited a long time ago, but the actual method is unknown. It has been suggested that sedimentary layers in standing bodies of water or volcanic ash deposits comprise the ILD. The alternating layers could indicate regular, repeating cycles of deposition. It is also possible that these layers once covered the entire chasma floor.
The IDL shown here have been modified by wind erosion.
The Yardangs visible near the top right of the full image are evidence for wind sculpting of the Deposits. It is interesting to note that there are very few craters in this scene, especially in the areas with visible Layers.
One crater can be found about half-way down the left side of the image amidst Layers and several craters are seen in the dark material on the right side of the image. This suggests that the ILD are eroding here fast enough to erase small craters before large numbers of them can accumulate.MareKromium
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PSP_002946_1765_RED_abrowse-01.jpgInterior Layered Deposits (ILD) in Juventae Chasma (EDM - Natural Colors; credits for the additonal process. and color.: Dr Paolo C. Fienga - Lunexit Team)54 visitenessun commentoMareKromium
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as07-03-1557.jpgAS 07-03-1557 - Sunlights outside...61 visitenessun commentoMareKromium
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as07-04-1601.jpgAS 07-04-1601 - Inside the Capsule (1)72 visitenessun commento
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as07-04-1602.jpgAS 07-04-1602 - Inside the Capsule (2)57 visitenessun commentoMareKromium
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