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Boulder Halo (Crater)

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Encyclopedia of Planetary Landforms

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Definition

Boulders in concentric pattern associated with circular fractures or depression in a thick mantling layer observed on Mars.

Synonyms

Arranged boulders; Crater-oriented boulder halos

Subtypes

Boulder halos (Figs. 1, 2, 3, and 4) have been observed on flat surface, along concentric fractures and bordering depressions (Levy et al. 2010: Fig. 11).

Fig. 1
figure 1

Boulder halo on patterned ground in Acidalia Planitia. Image 1 km across. HiRISE ESP_016526_2415 (NASA/JPL/University of Arizona)

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References

  • Barata T, Alves EI, Machado A, Barberes GA (2012) Characterization of palimpsest craters on Mars. Planet Space Sci. doi:http://dx.doi.org/10.1016/j.pss.2012.09.015

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  • Levy JS, Head JW, Marchant DR (2008) Origin and arrangement of boulders on the Martian northern plains: assessment of emplacement and modification environments. LPSC XXXIX:1172

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  • Levy JS, Marchant DR, Head JW (2010) Thermal contraction crack polygons on Mars: a synthesis from HiRISE, Phoenix, and terrestrial analog studies. Icarus 206:229–252

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Author information

Authors and Affiliations

  1. Institute for Geophysics, University of Texas, Austin, TX, USA

    Joseph Levy

  2. Planetary Science Research Group, Eötvös Loránd University, Institute of Geography and Earth Sciences, Budapest, Hungary

    Henrik Hargitai

Authors
  1. Joseph Levy
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  2. Henrik Hargitai
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Correspondence to Joseph Levy .

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© 2014 Springer Science+Business Media New York

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Levy, J., Hargitai, H. (2014). Boulder Halo (Crater). In: Encyclopedia of Planetary Landforms. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-9213-9_20-1

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  • DOI: https://doi.org/10.1007/978-1-4614-9213-9_20-1

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  • Publisher Name: Springer, New York, NY

  • Online ISBN: 978-1-4614-9213-9

  • eBook Packages: Springer Reference Earth and Environm. ScienceReference Module Physical and Materials ScienceReference Module Earth and Environmental Sciences

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