Trachytic rock that contains between 5 and 20 percent quartz in the QAPF fraction. QAPF field 7*.
LeMaitre et al. 2002
Parents: Trachytic rock (257)
[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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