SISSVoc Default

foid syenite

definition Foid syenitoid that has a plagioclase to total feldspar ratio of less than 0.1. Includes rocks defined modally in QAPF field 11. more like this
source LeMaitre et al. 2002 more like this
Resource original
Concept original
broader original
narrower foid_syenite original
in scheme simplelithology original
is primary topic of foid_syenite