Simple Lithology

alkali feldspar rhyolite

http://resource.geosciml.org/classifier/cgi/lithology/alkali_feldspar_rhyolite

definition Rhyolitoid in which the ratio of plagioclase to total feldspar is less than 0.1. QAPF field 2. more like this
example
alkali feldspar liparite more like this
peralkaline rhyolite more like this
source LeMaitre et al. 2002 more like this
type
Resource
Concept
broader rhyolitoid
narrower alkali feldspar rhyolite
in scheme simplelithology
is primary topic of alkali feldspar rhyolite