Alkali feldspar (trachytic rock)
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]
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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