Bysmalith

bysmalith

[′biz·mə‚lith]
(geology)
A body of igneous rock that is more or less vertical and cylindrical; it crosscuts adjacent sediments.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Bysmalith

 

a magma body having a conic or cylindrical form. Bysmaliths can reach the earth’s surface or end within sedimentary rocks, raising them in the shape of a dome.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.