autolith


Also found in: Dictionary, Thesaurus.
Related to autolith: xenolithic

autolith

[′ȯd·ō‚lith]
(petrology)
A fragment of igneous rock enclosed in another igneous rock of later consolidation, each being regarded as a derivative from a common parent magma.
A round, oval, or elongated accumulation of iron-magnesium minerals of uncertain origin in granitoid rock.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Mentioned in ?
References in periodicals archive ?
Autoliths of low-density roof cumulates hosted in high-density floor cumulates may have been transported downwards by convective flow (e.g., Irvine et al.
Many of these appear to belong to the basement but some may be derived from the porphyritic granite yet others may be autoliths. Some of the xenoliths show baking effect and are reddish on margins.