Tag Archives: polar layered deposits

THEMIS: South polar outliers

THEMIS Image of the Day, April 26, 2019. This VIS image is located near the south polar cap and exhibits the same layering of ice and dust. Outliers are regions that were once part of a larger regional feature but … Continue reading

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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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