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Aureum Chaos

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Title: Aureum Chaos  
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Subject: Margaritifer Sinus quadrangle, List of areas of chaos terrain on Mars, HiRISE, Outflow channels, Classical albedo features on Mars
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Aureum Chaos

Aureum Chaos
Map of Margaritifer Sinus quadrangle with major features labeled. Capri Chasma and Eos Chasma are at the east end of the Mariner Valley.
Coordinates

Aureum Chaos is a rough, collapsed region in the Margaritifer Sinus quadrangle (MC-19) portion of the planet Mars at approximately 4.4° south latitude and 27° west longitude. It is 368 km across and was named after a classical albedo feature name.[1] The classic name came from one of the first maps of Mars drawn by Schiaparelli who has been called the "Father of Mars." He called a feature "Aurea Cherso, which translates to the golden peninsula—an ancient name for Malaya.[2] Aureum is the Latin word for gold. In chemistry, the symbol for gold is Au from gold's Latin name.

In many places, the canyons of Aureum Chaos are about 1 km deep—a little more than half the depth of the Grand Canyon. But, Aureum Chaos covers an area about the size of the state of Alabama, almost 20 times larger than the Grand Canyon National Park.

Description

Aureum Chaos is a major canyon system and collapsed area. Large outflow channels on Mars are believed to be caused by catastrophic discharges of ground water.[3] Many of the channels begin in chaotic terrain, where the ground has apparently collapsed. In the collapsed section, blocks of undisturbed material can be seen. The OMEGA experiment on Mars Express discovered clay minerals (phyllosilicates) in a variety places in Aureum Chaos. Clay minerals need water to form, so the area may once have contained large amounts of water.[4] Scientists are interested in determining what parts of Mars contained water because evidence of past or present life may be found there. Aureum Chaos is one more piece of evidence that Mars once had great amounts of water.

See also

Chaos terrain

References

  1. ^ http://planetarynames.wr.usgs.gov
  2. ^ MacDonald, T. 1971. The Origins of Martian Nomenclature. Icarus: 15. 233-240.
  3. ^ http://hirise.lpl.arizona.edu/ESP_016869_1775
  4. ^ http://hirise.lpl.arizona.edu/PSP_0040261765

External links

  • The mesas of Aureum Chaos with Mars Express
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