Xanthe Terra

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Landslide in Xanthe Terra

Location

Xanthe Terra is a large area on Mars, centered just north of the Martian equator. Its coordinates are Template:Coord and its diameter is 1867.65 km. Parts of Xanthe are in four different quadrangles: Lunae Palus, Coprates, Margaritifer Sinus, and Oxia Palus.

Its name means "golden-yellow land." “Xanthe” comes from a Greek word meaning yellow. This word is found in other words such as xanthophyll, a plant pigment often seen in leaves in the fall.

Major features

Many interesting features are found in this small region including, Ravi Vallis, Aromatum Chaos, Ophir, Ganges Chasma, Nanedi Valles, Shalbatana Vallis, Orson Welles Crater, Mutch Crater, and Da Vinci. A Viking 1 orbiter picture of Ravi Vallis and Aromatum Chaos was highly suggestive that huge floods came out of the ground in chaos regions and formed large outflow channels. Orson Welles Crater was named after Orson Welles who did the 1938 radio broadcast of “The War of the Worlds.” Mutch Crater was named after Thomas Mutch who wrote “The Geology of Mars” in 1977. Mars Global Surveyor’s MOC found a 660 foot (200 m) wide channel on the floor of Nanedi Vallis that is thought to from a continued flow that caused new downcutting.

File:Ganges Chasma
Ravis Vallis and Aromatum Chaos

Images from Mars Express, Mars Global Surveyor, and the Mars Reconnaissance Orbiter have revealed ancient river valleys and deltas. The deltas show many thin layers just as deltas on Earth. Scientists speculate that features in Xanthe Terra show evidence of precipitation on early Mars.[1]

References