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Tikhonravov is a large, eroded crater in the Arabia quadrangle of Mars. It is 386.0 kilometres (240 mi) in diameter and was named after Mikhail Tikhonravov, a Russian rocket scientist. Tikonravov is believed to have once held a giant lake that drained into the 4500 km long Naktong-Scamander-Mamers lake-chain system. An inflow and outflow channel has been identified.
Some craters in Tikhonravov are classified as pedestal craters. A pedestal crater is a crater with its ejecta sitting above the surrounding terrain. They form when an impact crater ejects material which forms an erosion resistant layer, thus causing the immediate area to erode more slowly than the rest of the region. The result is that both the crater and its ejecta blanket stand above the surroundings.
Map of Arabia quadrangle with major craters.
Tikhonravov Basin Streaks.JPG
Streaks on side of pedestal crater in Tikhonravov, as seen by HiRISE. Scale bar is 500 meters long. Click on image to see close-up of the crater edge.
Layers under cap rock of a pedestal crater, as seen by HiRISE under HiWish program. Pedestal crater is within the much larger Tikhonravov.
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