felsique

OBS: Terme formé par contraction de feldspath et de silice et appliqué aux minéraux composés de ces éléments.
CONT: Minéral felsique.

CONT: The more felsic volcanics, developed at a later stage in island arc evolution, have a more varied metal association. They are copper-zinc-lead ores often carrying gold and silver.
OBS: The term ""felsic"" is used as a complement of ""mafic.""