mesocratic
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mesocratic
[‚mez·ə′krad·ik] (petrology)
Of igneous rock, being intermediate in color between leucocratic and melanocratic due to equal amounts of light and dark constituents.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive
Nepheline in a
mesocratic syenite at Lac Rouge, Quebec (locality 76) is replaced by cancrinite and sodalite, which are subsequently altered to natrolite and thomsonite (Corriveau, 1984).
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