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PREFERRED TERM
diorite
TYPE
  • http://purl.org/net/provenance/ns#DataItem

DEFINITION
  • Phaneritic crystalline rock consisting of intermediate plagioclase, commonly with hornblende and often with biotite or augite; colour index M less than 90, sodic plagioclase (An0-An50), no feldspathoid, and between 0 and 5 percent quartz. Includes rocks defined modally in QAPF field 10 as diorite.

DESCRIPTION
  • Phaneritic crystalline rock consisting of intermediate plagioclase, commonly with hornblende and often with biotite or augite; colour index M less than 90, sodic plagioclase (An0-An50), no feldspathoid, and between 0 and 5 percent quartz. Includes rocks defined modally in QAPF field 10 as diorite.

IDENTIFIER
  • diorite

TITLE
  • diorite

URI
http://inspire.ec.europa.eu/codelist/LithologyValue/diorite
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EQUIVALENT CONCEPTS
Lithology