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PREFERRED TERM
alkali feldspar trachyte  
TYPE
  • http://purl.org/net/provenance/ns#DataItem

DEFINITION
  • Trachytoid that has a plagioclase to total feldspar ratio less than 0.1, between 0 and 5 percent quartz in the QAPF fraction, and no feldspathoid minerals. QAPF field 6.
DESCRIPTION
  • Trachytoid that has a plagioclase to total feldspar ratio less than 0.1, between 0 and 5 percent quartz in the QAPF fraction, and no feldspathoid minerals. QAPF field 6.
IDENTIFIER
  • alkaliFeldsparTrachyte
TITLE
  • alkali feldspar trachyte
URI
http://inspire.ec.europa.eu/codelist/LithologyValue/alkaliFeldsparTrachyte
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