SISSVoc Default


definition A gneiss with mineralogy and texture indicating derivation from a phaneritic igneous rock protolith. Typically consists of abundant feldspar, with quartz, and variable hornblende, biotite, and muscovite, with a relatively homogeneous character. more like this
source This vocabulary more like this
Resource original
Concept original
broader original
narrower orthogneiss original
in scheme simplelithology original
is primary topic of orthogneiss