Tag Archives: polar layered deposits

HiRISE: Exposure of north polar layered deposits

Beautiful Mars series. Exposure of north polar layered deposits. More Beautiful Mars images.

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Hidden valley at the north pole

The north polar cap of Mars has a wide, deep trough called Chasma Boreale that slices into the polar cap for 560 kilometers (350 miles). The floor of the chasma exposes a layer of sand and dust cemented with water … Continue reading

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Ice cap winds spread polar gypsum

The north polar cap of Mars is surrounded by a vast dune field, about as large as Earth’s Kalahari Desert, that contains extensive deposits of gypsum. The gypsum’s origin has been debated since the mineral was discovered in 2005, yet … Continue reading

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No flow found in north polar ice layers

The northern polar ice cap of Mars contains a thick stack of layers rich in water ice. Under the right conditions ice can flow, as seen in ice sheets and glaciers on Earth. What about Mars? A group of scientists … Continue reading

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Peeking into a stacked deck

No one is planning to send a Mars rover into the high latitudes (north or south) anytime soon, but if a paper in Icarus (June 2011) by Seth J. Kadish and James W. Head (both Brown University) is correct, scientists … Continue reading

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