Simple Lithology

boninite

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

broader andesite
narrower boninite
high magnesium fine grained igneous rocks
narrower boninite
definition andesitic rock that contains more than 8 percent MgO. Typically consists of phenocrysts of protoenstatite, orthopyroxene, clinopyroxene, and olivine in a glassy base full of crystallites, and exhibits textures characterisitc of rapid crystal growth. more like this
source LeMaitre et al. 2002 more like this
type
Resource
Concept
in scheme simplelithology
is primary topic of boninite