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foid bearing trachyte

definition Trachytic rock that contains between 0 and 10 percent feldspathoid in the QAPF fraction, and no quartz. QAPF field 7'. more like this
source LeMaitre et al. 2002 more like this
Resource original
Concept original
broader original
narrower foid_bearing_trachyte original
in scheme simplelithology original
is primary topic of foid_bearing_trachyte