Encyclopedia of Astrobiology

Living Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James Cleaves, Daniele Pinti, José Cernicharo Quintanilla, Michel Viso

Impact Melt Rock

  • Philippe Claeys
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27833-4_779-3

Definition

An impact melt rock is a type of rock typically found in impact structures. It is an impactite consisting of a mixture of solid and melt fragments all derived from the target rock, floating in a glassy, microcrystalline, or recrystallized matrix. The solid fragments may contain shocked minerals. An impact melt rock results from the cooling of the melt pool that formed within a crater because of the high temperature and pressure generated during the impact. The largest craters such as Sudbury (Ontario, Canada), Chicxulub (Mexico), Popigai (Siberia), or Manicouagan (Québec, Canada) contain a very large volume of impact melt. In the case of Sudbury, it also hosts important ore deposits of nickel.

See Also

Keywords

Large Volume Bioorganic Chemistry Impact Structure Large Crater Shocked Mineral 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Earth System ScienceVrije Universiteit BrusselBrusselsBelgium