experimental

Entry: phonolitoid

URI: http://inspire.ec.europa.eu/codelist/LithologyValue/phonolitoid

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 less than 0.5. Includes rocks defined modally in QAPF fields 11 and 12, and TAS field Ph.

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is a Concept
submitted bySophie Chaduteau
accepted on 16 Jul 2026 11:53:11.331

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date accepted 16 Jul 2026 11:53:11.331
date submitted 16 Jul 2026 09:17:50.335
definition
entity phonolitoid
source graph graph

item class Concept
label phonolitoid
notation 9d3fadcf-6871-45e3-b7e8-0b6f5b700cc9
register lithology value
status status experimental
submitter
account name s.chaduteau@brgm.fr
name Sophie Chaduteau

type register item
version info 2
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Definition

broader fine grained igneous rock
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 less than 0.5. Includes rocks defined modally in QAPF fields 11 and 12, and TAS field Ph.
narrower phonolite | tephritic phonolite
notation phonolitoid
pref label phonolitoid
type Concept

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