Alkali feldspar (rhyolite)
Rhyolitoid in which the ratio of plagioclase to total feldspar is less than 0.1. QAPF field 2.
LeMaitre et al. 2002
See Also: alkali feldspar liparite, peralkaline rhyolite
Parents: Rhyolitoid (224)
[Description taken from GeoSciML SimpleLithology201012.rdf]
Category: Analysed material
The different kinds of sample material collected in the field have been classified hierarchically. Examples: “till”, “soil”, “vegetation”. Taken from the “Sample_Types_SHARED” database table.
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