Boulder Halo (Crater)

  • Joseph LevyEmail author
  • Henrik Hargitai
Living reference work entry


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



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).


Flat Surface Plane Surface Current Location Present Position Stratigraphic Level 
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  1. Barata T, Alves EI, Machado A, Barberes GA (2012) Characterization of palimpsest craters on Mars. Planet Space Sci. doi: Scholar
  2. 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:1172Google Scholar
  3. Levy JS, Marchant DR, Head JW (2010) Thermal contraction crack polygons on Mars: a synthesis from HiRISE, Phoenix, and terrestrial analog studies. Icarus 206:229–252CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  1. 1.Institute for GeophysicsUniversity of TexasAustinUSA
  2. 2.Planetary Science Research GroupEötvös Loránd University, Institute of Geography and Earth SciencesBudapestHungary