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Tag Archives: north polar ice cap
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
Posted in Reports
Tagged climate, climate change, LPSC 2012, Mars Express, Mars Reconnaissance Orbiter, MARSIS, north polar ice cap, polar layered deposits, SHARAD
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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
Posted in Reports
Tagged basal unit, climate change, CRISM, dunes, dust, gypsum, ice cap, katabatic winds, north polar ice cap, OMEGA, polar layered deposits, wind
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