Ejecta blanket

Ejecta blanket from Hadley C crater filling in Hadley Rille

An ejecta blanket is a generally symmetrical apron of ejecta that surrounds an impact crater; it is layered thickly at the crater's rim and thin to discontinuous at the blanket's outer edge.[1] The impact cratering is one of the basic surface formation mechanisms of the solar system bodies (including the Earth) and the formation and emplacement of ejecta blankets are the fundamental characteristics associated with impact cratering event.[2] The ejecta materials are considered as the transported materials beyond the transient cavity formed during impact cratering regardless of the state of the target materials.[2]

structure of impact craters, showing surrounding ejecta
  1. ^ David Darling. "ejecta blanket". The Encyclopedia of Astrobiology, Astronomy, and Spacecraft. Retrieved 2007-08-07.
  2. ^ a b Osinski, Gordon R.; Tornabene, Livio L.; Grieve, Richard A. F. (2011-10-15). "Impact ejecta emplacement on terrestrial planets". Earth and Planetary Science Letters. 310 (3): 167–181. Bibcode:2011E&PSL.310..167O. doi:10.1016/j.epsl.2011.08.012. ISSN 0012-821X.

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