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PREFERRED TERM
fine grained igneous rock  
TYPE
  • http://purl.org/net/provenance/ns#DataItem

DEFINITION
  • Igneous rock in which the framework of the rock consists of crystals that are too small to determine mineralogy with the unaided eye; framework may include up to 50 percent glass. A significant percentage of the rock by volume may be phenocrysts. Includes rocks that are generally called volcanic rocks.
DESCRIPTION
  • Igneous rock in which the framework of the rock consists of crystals that are too small to determine mineralogy with the unaided eye; framework may include up to 50 percent glass. A significant percentage of the rock by volume may be phenocrysts. Includes rocks that are generally called volcanic rocks.
IDENTIFIER
  • fineGrainedIgneousRock
TITLE
  • fine grained igneous rock
URI
http://inspire.ec.europa.eu/codelist/LithologyValue/fineGrainedIgneousRock
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