Simple Lithology

foid bearing trachyte

http://resource.geosciml.org/classifier/cgi/lithology/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
type
Resource
Concept
broader trachytic rock
narrower foid bearing trachyte
in scheme simplelithology
is primary topic of foid bearing trachyte