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doleritic rock

definition Dark colored gabbroic (basaltic) or dioritic (andesitic) rock intermediate in grain size between basalt and gabbro and composed of plagioclase, pyroxene and opaque minerals; often with ophitic texture. Typically occurs as hypabyssal intrusions. Includes dolerite, microdiorite, diabase and microgabbro. more like this
diabase more like this
dolerite more like this
microdiorite more like this
microgabbro more like this
trap more like this
source Neuendorf et al 2005; LeMaitre et al. 2002; Gillespie and Styles 1999 more like this
Resource original
Concept original
broader original
narrower doleritic_rock original
in scheme simplelithology original
is primary topic of doleritic_rock