Basanite

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basanite

[′bas·ə‚nīt]
(petrology)
A basaltic extrusive rock closely allied to chert, jasper, or flint. Also known as Lydian stone; lydite.
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 It might be outdated or ideologically biased.

Basanite

 

magmatic rock of porphyritic structure. In addition to plagioclase, olivine, and augite, it is composed of up to 15 percent leucite, nepheline, or analcime. Depending on the content of these three, basanite is classified as leucitic, nephelinic, or analcimic. Basanite is used for stone casting and as a facing material.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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Bentonite residues replacing basaltic tuffs of the Usti Formation and buried beneath a basanitic lava flow were revealed by drilling operations in the Stebno-Podlesin area, south of Usti nad Labem (Vlckova, 1986).