Encyclopedia

poikiloblast

Also found in: Medical, Wikipedia.

poikiloblast

[pȯi′kil·ə‚blast]
(geology)
A large crystal (xenoblast) formed by recrystallization during metamorphism and containing numerous inclusions of small idioblasts.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
Garnet is sometimes found as inclusions within the staurolite poikiloblasts, which indicates that the rock from the staurolite zone first crossed a garnet-in reaction.
Petrologic significance of Fe-rich staurolite in pelitic schists of the Silgara Formation, Santander Massif/Significado Petrologico de Estaurolita Rica en Fe en Esquistos Peliticos de la Formacion Silgara, Macizo de Santander
Coronitic Fe-Ti gabbro is transformed to amphibolite at deformed margins and contains clinopyroxene-bearing leucosomes with garnet poikiloblasts that are indicative of high-PT dehydration melting.
Transformation of Fe-Ti gabbro. (Geological Association of Canada 2000 Annual Technical Meeting Newfoundland Section)
Copyright © 2003-2025 Farlex, Inc Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.