| Risultati della ricerca nelle immagini - "Henry" |
Craters-Henry_Crater-PCF-LXTT.jpgHenry Crater (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)192 visitenessun commentoMareKromium
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PSP_006569_1915_RED_abrowse-00-PCF-LXTT.jpgFeatures of Henry Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)86 visiteNamed after a 19th Century French Astronomer, Henry Crater is an about 165 Km (approx. 103 mile) diameter Impact Crater, located in Arabia Terra, on a portion of the Martian Highlands extending into the Northern Hemisphere. This observation shows multiple Layers on the Edge of a Mound on the Floor of the Crater, which is distinct from others in the immediate vicinity.
The Layers represent the eroded remains of Sedimentary Rocks that formed from Sediments deposited within the Crater sometime after its formation. The origin of the Sediments on the Crater Floor in not known but may be windblown Dust and Sand.
The Layers exhibit differences in degrees of hardness and resistance to erosion with resistant Layers forming Cliffs and more easily eroded Layers forming Ledges.
Inset: Several Dark Streaks are visible on the Slopes. Slope Streak formation is among the few known processes currently active on Mars. Streaks are believed to form by downslope movement of Dust in an almost fluid-like manner (analogous to a terrestrial Snow Avalanche) either exposing darker underlying material or creating a darker surface by increasing its roughness. MareKromium
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