Figure F20. Photomicrograph showing gabbroic intrusion with mylonitic texture. Whitish and brownish bands lying near the center contain plagioclase and brown amphibole, respectively (Sample 209-1270C-1R-1, 83–85 cm) (plane-polarized light: blue filter; field of view = 5.5 mm; image 1270C

Figure F20. Photomicrograph showing gabbroic intrusion with mylonitic texture. Whitish and brownish bands lying near the center contain plagioclase and brown amphibole, respectively (Sample 209-1270C-1R-1, 83–85 cm) (plane-polarized light: blue filter; field of view = 5.5 mm; image 1270C_021).