Figure F17. Examples of high-temperature, ductile deformation structure that is recorded in some Hole U1309D rocks. A. Well-defined gabbro mylonite cut by a fracture (Sample 304-U1309D-8R-1, 68–71 cm) (plane-polarized light; field of view [FOV] = ~2 cm). B. Brown amphibole vein crosscuts localized mylonite shear zone with domains of recrystallized plagioclase and pyroxene (Sample 304-U1309D-9R-1, 71–73 cm) (cross-polarized light; FOV = 4 mm).
Previous | Close | Next | Top of page