Simple Lithology

gabbroic rock

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

broader basic igneous rock
narrower gabbroic rock
gabbroid
narrower gabbroic rock
definition Gabbroid that has a plagioclase to total feldspar ratio greater than 0.9 in the QAPF fraction. Includes QAPF fields 10*, 10, and 10'. This category includes the various categories defined in LeMaitre et al. (2002) based on the mafic mineralogy, but apparently not subdivided based on the quartz/feldspathoid content. more like this
example
gabbro (sensu stricto) more like this
gabbronorite more like this
norite more like this
troctolite more like this
narrower foid bearing gabbro
broader gabbroic rock
gabbro
broader gabbroic rock
quartz gabbro
broader gabbroic rock
source LeMaitre et al. 2002 more like this
type
Resource
Concept
in scheme simplelithology
is primary topic of gabbroic rock