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process it dissolved many minerals from the rock it passed through. When ground water surfaces in low areas containing sediments, water evaporates in the thin atmosphere and leaves behind minerals as deposits and/or cementing agents. Consequently, layers of dust could not later easily erode away since they were cemented together. On Earth, mineral-rich waters often evaporate forming large deposits of various types of
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is distinctive; nothing on Earth compares to it. Chaos terrain generally consists of irregular groups of large blocks, some tens of kilometres across and a hundred or more meters high. The tilted and flat topped blocks form depressions hundreds of metres deep. A chaotic region can be recognized by
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in
Arsinoes display layering. Many places on Mars show rocks arranged in layers. Rock can form layers in a variety of ways. Volcanoes, wind, or water can produce layers. Layers can be hardened by the action of groundwater. Martian ground water probably moved hundreds of kilometers, and in the
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a rat's nest of mesas, buttes, and hills, chopped through with valleys which in places look almost patterned. Some parts of this chaotic area have not collapsed completely—they are still formed into large mesas, so they may still contain water ice.
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under HiWish program. Note: this field can be found in the previous wide image of
Arsinoes Chaos, as seen by CTX camera (on Mars Reconnaissance Orbiter).
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Meresse, S.; et al. (2008). "Formation and evolution of the chaotic terrains by subsidence and magmatism: Hydraotes Chaos, Mars".
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formed in light-toned material and surrounded by dark, volcanic basalt sand, as seen by HiRISE under HiWish program.
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A detailed discussion of layering with many
Martian examples can be found in Sedimentary Geology of Mars.
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on Mars. It is 200 km in diameter. Its location is 7.66 °S and 27.9 °W. Arsinoes Chaos was named after
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Forget, F., et al. 2006. Planet Mars Story of
Another World. Praxis Publishing, Chichester, UK.
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Close-up image of yardangs, as seen by HiRISE under HiWish program. Arrows point to
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Grotzinger, J. and R. Milliken (eds.). 2012. Sedimentary
Geology of Mars. SEPM.
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Butte in
Arsinoes Chaos with some light-toned layers, as seen by HiRISE under
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Boundaries of
Arsinoes Chaos represented by dark green in the center.
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Carr, M. 2006. The
Surface of Mars. Cambridge University Press.
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397:"Unraveling the Chaos of Aram | Mars Odyssey Mission THEMIS"
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Light-toned deposit in
Arsinoes Chaos, as seen by CTX camera (on
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Map showing
Arsinoes Chaos (far left) and other nearby features
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411:"HiRISE | High Resolution Imaging Science Experiment"
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Map showing location of Arsinoes Chaos (on the far left)
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215:Light-toned deposit in Arsinoes Chaos, as seen by
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136:Groundwater on Mars § Layered terrain
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413:. Hirise.lpl.arizona.edu?psp_008437_1750
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444:List of areas of chaos terrain on Mars
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276:. USGS Astrogeology Research Program.
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324:"Mars: Fretted and chaotic terrains"
274:Gazetteer of Planetary Nomenclature
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464:Margaritifer Sinus quadrangle
92:Margaritifer Sinus quadrangle
309:10.1016/j.icarus.2007.10.023
201:Mars Reconnaissance Orbiter
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248:transverse aeolian ridges
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459:Chaotic terrains on Mars
351:10.1029/JB078i020p04073
110:Martian chaos terrain
102:Chaos terrain on Mars
16:Chaos terrain on Mars
343:1973JGR....78.4073S
301:2008Icar..194..487M
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322:Sharp, R. (1973).
385:978-0-387-48925-4
369:978-0-521-87201-0
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58:7.7°S 27.9°W
63:-7.7; -27.9
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37:Coordinates
453:Categories
417:2012-08-04
256:References
127:and other
438:See also
232:Yardangs
187:program.
129:minerals
77:200.1 km
339:Bibcode
297:Bibcode
144:Gallery
96:Arsinoe
90:in the
49:27°54′W
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289:Icarus
217:HiRISE
185:HiWish
116:buttes
74:Length
46:7°42′S
327:(PDF)
125:salts
120:mesas
114:Some
86:is a
381:ISBN
365:ISBN
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118:and
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
