Figure 2.
IUGS classification for quartz-bearing felsic rocks showing the differentiation paths followed by various granitic plutons Dashed lines—granitoids of Cordilleran batholiths; C—Caledonian batholiths; F—ferroan granites; LG—peraluminous leucogranites; Q—quartz; A—alkali feldspar; P—plagioclase. From Frost and Frost (2014).