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

DEFINITION
  • Fine grained igneous rock than contains less than 90 percent mafic minerals, between 10 and 60 percent feldspathoid mineral in the QAPF fraction and has a plagioclase to total feldspar ratio greater than 0.5. Includes rocks classified in QAPF field 13 and 14 or chemically in TAS field U1 as basanite or tephrite.
DESCRIPTION
  • Fine grained igneous rock than contains less than 90 percent mafic minerals, between 10 and 60 percent feldspathoid mineral in the QAPF fraction and has a plagioclase to total feldspar ratio greater than 0.5. Includes rocks classified in QAPF field 13 and 14 or chemically in TAS field U1 as basanite or tephrite.
IDENTIFIER
  • tephritoid
TITLE
  • tephritoid
URI
http://inspire.ec.europa.eu/codelist/LithologyValue/tephritoid
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