Figure F14. Compact glomeroporphyritic intergrowth. Note the fine oscillatory zoning and the presence of small rounded plagioclase inclusions in the larger plagioclase grains. The shape of the largest grain and the concentric form of the oscillatory zoning indicates that the grain grew radially out from the center of the glomeroporphyritic intergrowth, which lies in the center left of the photo. Sample 183-1136A-16R-1 (Piece 3, 80-82 cm) in cross-polarized light; width of field of view = 3 mm.