SISSVoc Default

gneiss

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

definition Foliated metamorphic rock with bands or lenticles rich in granular minerals alternating with bands or lenticles rich in minerals with a flaky or elongate prismatic habit. Mylonitic foliation or well developed, continuous schistosity (greater than 50 percent of the rock consists of grains participate in a planar or linear fabric) precludes classification with this concept. more like this
narrower
http://resource.geosciml.org/classifier/cgi/lithology/orthogneiss original
broader gneiss original
http://resource.geosciml.org/classifier/cgi/lithology/paragneiss original
broader gneiss original
source Neuendorf et al. 2005 more like this
type
Resource original
Concept original
broader
http://resource.geosciml.org/classifier/cgi/lithology/foliated_metamorphic_rock original
narrower gneiss original
in scheme simplelithology original
is primary topic of gneiss