Keyword Definition

Phaneritic crystalline rock with M less than 90, consisting of intermediate plagioclase, commonly with hornblende and often with biotite or augite. A dioritoid with a plagioclase to total feldspar ratio (in the QAPF fraction) greater than 0.9. Includes rocks defined modally in QAPF fields 10, 10' and 10*.

LeMaitre et al. 2002

Parents: Dioritoid (73)

Children: Diorite (71); Foid bearing diorite (90); Quartz diorite (212)

[Description taken from GeoSciML SimpleLithology201012.rdf]

Hierarchical classification

Sample >> Lithosphere >> Rock >> Whole >> Rock >> Igneous >> Intermediate composition >> Dioritoid >> Dioritic


Diorite | Foid bearing (diorite) | Quartz (diorite)

Category: Analysed material

The different kinds of sample material collected in the field have been classified hierarchically. Examples: “till”, “soil”, “vegetation”. Taken from the “Sample_Types_SHARED” database table.

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