Fig. 5. Cartoon of isoclinal anticline in the layered Wanup pluton, showing locations discussed in the text for felsic (a), intermediate (bcdefhi), mafic (g), and theoretical ultramafic rocks (below g), from top to bottom. Gradual changes in An-content of plagioclase are shown, ranging from An₂₂ at the top to An₅₄ at the bottom.