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xenolith

A Dictionary of Earth Sciences | 1999 | Copyright

xenolith An inclusion or enclave of a preexisting rock in an igneous rock. Xenoliths are often derived from the country rocks that have been invaded by the igneous mass, and they frequently show some evidence of reaction, e.g. rounding of their edges and metamorphism.

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AILSA ALLABY and MICHAEL ALLABY. "xenolith." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 9 Feb. 2010 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "xenolith." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (February 9, 2010). http://www.encyclopedia.com/doc/1O13-xenolith.html

AILSA ALLABY and MICHAEL ALLABY. "xenolith." A Dictionary of Earth Sciences. 1999. Retrieved February 09, 2010 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-xenolith.html

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