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foid gabbroid

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

definition Phaneritic crystalline igneous rock in which M is less than 90, the plagioclase to total feldspar ratio is greater than 0.5, feldspathoids form 10-60 percent of the QAPF fraction, and plagioclase has anorthite content greater than 50 percent. These rocks typically contain large amounts of mafic minerals. Includes rocks defined modally in QAPF fields 13 and 14. more like this
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http://resource.geosciml.org/classifier/cgi/lithology/foid_gabbro original
broader foid_gabbroid original
http://resource.geosciml.org/classifier/cgi/lithology/foid_monzogabbro original
broader foid_gabbroid original
source LeMaitre et al. 2002 more like this
type
Resource original
Concept original
broader
http://resource.geosciml.org/classifier/cgi/lithology/phaneritic_igneous_rock original
narrower foid_gabbroid original
in scheme simplelithology original
is primary topic of foid_gabbroid