Fig. 22. Cartoon of the large drag fold shown in Fig. 9. In the center, the thickness of the megacrystal granitic rock (a) is about one-third of the combined thicknesses of two amphibolite and two granitic layers (b) in the equivalent position in the upper limb. In the lower right, the thickness of the leucocratic granite bands (c, vertical line) is about one-fourth the combined thicknesses of two amphibolite and two granitic layers (d) in the equivalent position in the lower limb.