leucocratic

English

Alternative forms

Etymology

leuco- +‎ -cratic

Adjective

leucocratic (comparative more leucocratic, superlative most leucocratic)

  1. (geology, of igneous rock) Light in color, containing at least 90% felsic minerals.
    • 2013, H.G.F. Winkler, Petrogenesis of Metamorphic Rocks, page 325:
      Occasionally the opinion is advanced that the formation of the leucocratic, granitic-granodioritic portions of the heterogeneous in-situ migmatites is due to a metasomatic process, i.e., to the addition of “emanations” from depth.

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