http://inspire.ec.europa.eu/codelist/LithologyValue/alkaliFeldsparTrachyte
2015-08-18 18:01 PM CEST
alkali feldspar trachyte
alkali feldspar trachyte
Trachytoid that has a plagioclase to total feldspar ratio less than 0.1, between 0 and 5 percent quartz in the QAPF fraction, and no feldspathoid minerals. QAPF field 6.
Trachytoid that has a plagioclase to total feldspar ratio less than 0.1, between 0 and 5 percent quartz in the QAPF fraction, and no feldspathoid minerals. QAPF field 6.
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