Encyclopedia of Astrobiology

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

Achondrite

Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27833-4_19-3

Definition

Achondrites are differentiated stony meteorites and constitute a minority among the stony meteorites. The term literally means “without chondrules” and therefore underlines the main difference with chondrites. Achondrites are igneous rocks or breccias of igneous rock fragments and thus their parent body has experienced partial melting and recrystallization. The class of achondrites includes the primitive achondrites (e.g., ureilites) and achondrites in general (e.g., aubrites, eucrites, howardites, diogenites, Martian meteorites, and lunar meteorites).

See Also

Keywords

Bioorganic Chemistry Partial Melting Igneous Rock Rock Fragment Parent Body 
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.Deutsches Zentrum für Luft- und Raumfahrt (DLR)Institute of Planetary ResearchBerlinGermany