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Angustus Labyrinthus is a complex of intersecting valleys or ridges near the Martian south pole (in the Mare Australe quadrangle), located at 81.68° S and 63.25° W.It was nicknamed the "Inca City" by NASA scientists due to its superficial resemblance to a ruined city. [1]
This group of ridges extends from 270–100 E and 70–90 S, around the south pole of Mars. It sits under the Late Amazonian South Polar Layered Deposits (SPLD). The amount of these ridges is huge, one study studied seven different ridge systems which contained almost 4,000 ridges that had a total length 51,000 km. [ 51 ]
The Dorsa Argentea Formation (DAF) is thought to be a large system of eskers that were under an ancient ice cap in the south polar region of Mars. [1] The ancient ice cap was at least twice the size of the present ice cap and may have been 1500–2000 meters thick. [2]
Residual north and south polar ice caps are shown at upper and lower right as they appear in early summer and at minimum size, respectively. Areography, also known as the geography of Mars, is a subfield of planetary science that entails the delineation and characterization of regions on Mars.
PHOTO: This image from NASA's Mars Reconnaissance Orbiter, acquired May 13, 2018, during winter at the South Pole of Mars, shows a carbon dioxide ice cap covering the region.
1995 photo of Mars showing approximate size of the polar caps. The planet Mars has two permanent polar ice caps of water ice and some dry ice (frozen carbon dioxide, CO 2).Above kilometer-thick layers of water ice permafrost, slabs of dry ice are deposited during a pole's winter, [1] [2] lying in continuous darkness, causing 25–30% of the atmosphere being deposited annually at either of the ...
The maps below were produced by the Mars Global Surveyor ' s Mars Orbiter Laser Altimeter; redder colors indicate higher elevations.The maps of the equatorial quadrangles use a Mercator projection, while those of the mid-latitude quadrangles use a Lambert conformal conic projection, and the maps of the polar quadrangles use a polar stereographic projection.
New research published Monday in the journal Nature Astronomy indicates there really is a buried reservoir of super-salty water near the south pole of the planet. Are there super-salty lakes on Mars?