Definition
Solid H2O or CO2 deposits on Mars formed by aeolian processes.
Synonyms
Category
A type of impact structure
Subtypes
(1) Crater-associated, (2) Polar streak, (3) Spider-associated
Description and Formation
- (1)
Crater-associated frost streak (Fig. 1): Bright streaks composed of seasonal wind transported accumulations CO2 frost/snow, present in the lee of craters in the polar regions of Mars. They appear after the annual cap has formed, and they are surrounded by a less bright cover of the annual cap. The albedo difference is due to a more complete frost cover of the ground within the streaks than in the surrounded cap (Thomas et al. 1979, 1981).
- (2)
Polar frost streaks (Figs. 2 and 3): They are found on the polar layered terrain. Polar frost streaks form by off-pole katabatic drainage winds generated by the broadly domal topography of the layered deposits (Howard 2000). They form when wind velocities are at a maximum, during southern spring and summer. When the...
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References
Cutts JA, Blasius KR, Briggs GA, Carr MH, Greeley R, Masursky H (1976) North Polar Region of Mars: imaging results from Viking 2. Science 194:329–337
Hansen CJ, McEwen A and the HiRISE Team (2007) Spring at the South Pole of Mars. AGU Press conference. http://hirise.lpl.arizona.edu/pdf/agu_press_conf_dec07.pdf
Howard AD (2000) The role of eolian processes in forming surface features of the Martian polar layered deposits. Icarus 144:267–288. doi:10.1006/icar.1999.6305
Piqueux S, Byrne S, Richardson MI (2003) Sublimation of Mars’s southern seasonal CO2 ice cap and the formation of spiders. J Geophys Res 108(E8):3–1. doi:10.1029/2002JE002007, CiteID 5084
Rodriguez JAP, Tanaka KL, Langevin Y, Bourke M, Kargel J, Christensen P, Sasaki S (2007) Recent aeolian erosion and deposition in the north polar plateau of Mars. Mars 3:29–41. doi:10.1555/mars.2007.0003
Thomas P, Veverka J, Campos-Marquetti R (1979) Frost streaks in the south polar cap of Mars. J Geophys Res 84(B9):4621–4633. doi:10.1029/JB084iB09p04621
Thomas PC, Veverka J, Lee S, Bloom A (1981) Classification of wind streaks on Mars. Icarus 45:124–153
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Hargitai, H. (2014). Frost Streak (Mars). In: Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9213-9_164-1
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DOI: https://doi.org/10.1007/978-1-4614-9213-9_164-1
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