Alkali feldspar (trachytic rock)

Keyword Definition

Trachytoid that has a plagioclase to total feldspar ratio less than 0.1. QAPF fields 6, 6', and 6*.

LeMaitre et al. 2002

Parents: Trachytoid (258)

Children: Alkali feldspar trachyte (8); Foid bearing alkali feldspar trachyte (88); Quartz alkali feldspar trachyte (210)

[Description taken from GeoSciML SimpleLithology201012.rdf]

Hierarchical classification

Sample >> Lithosphere >> Rock >> Whole >> Rock >> Igneous >> Fine grained >> Trachytoid >> Alkali feldspar


Alkali feldspar (trachyte) | Foid bearing (alkali feldspar trachyte) | Quartz alkali feldspar (trachyte)

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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