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Fan-Shaped Deposit (Tharsis, Mars)

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Definition

Fanned, partly grooved deposit along the slope of some of the Tharsis volcanoes, particularly facing the NW side.

Synonyms

Cold-based glacier (interpretation); Tropical mountain glacier (interpretation)

Description and Morphometry

The individual lobes form extensive deposits. Along the marginal steep slope of Olympus Mons, 15 lobes are visible at 340 km distance between 330 and 290°E longitudes (Fig. 1). The deposits are thinning from away the Olympus Mons; their maximal thickness is around 1 km (Milkovich et al. 2006). In Arsia Mons (Fig. 2), Pavonis Mons, and Ascraeus Mons, the deposit are respectively 450, 250, and 100 km long; their width is comparable or slightly greater than the length.

Fig. 1
figure 1

Fan-shaped features on the west side of the Olympus Mons. Scale bar 100 km. North is to the right. THEMIS mosaic (NASA/JPL-Caltech/Arizona State University)

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References

  • Haberle RM, Montmessin F, Forget F, Levrard B, Head III JW, Laskar J (2004) GCM simulations of tropical ice accumulations: implications for cold-based glaciers. Lunar Planet Sci XXXV, abstract #1711, Houston

    Google Scholar 

  • Head JW, Marchant DR (2002) Mountain glaciers on Mars? Western Arsia Mons fan-shaped deposit knobby facies as cold-based glacier sublimation tills. Microsymposium 36:MS102

    Google Scholar 

  • Head JW, Marchant DR (2003) Cold-based mountain glaciers on Mars: Western Arsia Mons. Geology 31:641–644

    Article  Google Scholar 

  • Jakosky B, Carr M (1985) Possible precipitation of ice at low latitudes of Mars during periods of high obliquity. Nature 315:559–561. doi:10.1038/315559a0

    Article  Google Scholar 

  • Kadish SJ, Head JW, Parsons RL, Marchant DR (2008) The Ascraeus Mons fan-shaped deposit: volcano–ice interactions and the climatic implications of cold-based tropical mountain glaciation. Icarus 197:84–109

    Article  Google Scholar 

  • Kadish SJ, Head JW, Fastook JL, Marchant DR (2014) Middle to Late Amazonian tropical mountain glacier on Mars: the ages of the Tharsis Montes fan-shaped deposits. Planet Space Sci 61:52–59

    Article  Google Scholar 

  • Lucchitta BK (1981) Mars and Earth: comparison of cold-climate features. Icarus 45:264–303

    Article  Google Scholar 

  • Milkovich SM, Head JW, Marchant DR (2006) Debris covered piedmont glaciers along the northwest flank of the Olympus Mons scarp: evidence for low-latitude ice accumulation during the Late Amazonian of Mars. Icarus 181:388–407

    Article  Google Scholar 

  • Parsons RL, Head JW (2004). Ascraeus Mons, Mars: characterization and interpretation of the fan-shaped deposit on its western flank. Lunar Planet Sci XXXV, abstract #1776, Houston

    Google Scholar 

  • Shean DE, Head JW, Marchant DR (2005) Origin and evolution of a coldbased tropical mountain glacier on Mars: the Pavonis Mons fan-shaped deposit. J Geophys Res 110(E5). doi:10.1029/2004JE002360

    Google Scholar 

  • Shean DE, Head JW, Fastook JL, Marchant DR (2007) Recent glaciation at high elevations on Arsia Mons, Mars: implications for the formation and evolution of large tropical mountain glaciers. J Geophys Res 112:E03004. doi:10.1029/2006JE002761

    Google Scholar 

  • Williams RS (1978) Geomorphic processes in Iceland and on Mars: a comparative appraisal from orbital images. Geol Soc Am Abstr Prog 10:517

    Google Scholar 

  • Zimbelman J, Edgett K (1992) The Tharsis Montes, Mars: comparison of volcanic and modified landforms: Lunar Planet Sci XXII:31–44, Houston

    Google Scholar 

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Correspondence to Fabio Vittorio De Blasio .

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De Blasio, F.V. (2014). Fan-Shaped Deposit (Tharsis, Mars). In: Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9213-9_146-1

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  • DOI: https://doi.org/10.1007/978-1-4614-9213-9_146-1

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Chapter history

  1. Latest

    Fan-Shaped Deposit (Tharsis, Mars)
    Published:
    29 September 2014

    DOI: https://doi.org/10.1007/978-1-4614-9213-9_146-1

  2. Original

    Delta
    Published:
    01 September 2014

    DOI: https://doi.org/10.1007/978-1-4614-9213-9_109-1