Simple Lithology

dioritoid

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

star this property broader intermediate composition igneous rock
star this property narrower dioritoid
phaneritic igneous rock
star this property narrower dioritoid
star this property definition Phaneritic crystalline igneous rock with M less than 90, consisting of intermediate plagioclase, commonly with hornblende and often with biotite or augite. Plagioclase to total feldspar ratio is greater that 0.65, and anorthite content of plagioclase is less than 50 percent. Less than 10 percent feldspathoid mineral and less than 20 percent quartz in the QAPF fraction. Includes rocks defined modally in QAPF fields 9 and 10 (and their subdivisions). more like this
star this property narrower dioritic rock
star this property broader dioritoid
monzodioritic rock
star this property broader dioritoid
star this property source LeMaitre et al. 2002 more like this
star this property type
Resource
Concept
star this property in scheme simplelithology
star this property is primary topic of dioritoid& properties=prefLabel