Figure F7. Close-up photograph of a hardground interval at the top of Unit III (interval 194-1194A-14X-1, 0-30 cm). The brown crust is likely to be phosphatized and to contain ferromanganese mineralizations.

Figure F7. Close-up photograph of a hardground interval at the top of Unit III (interval 194-1194A-14X-1, 0-30 cm). The brown crust is likely to be phosphatized and to contain ferromanganese mineralizations.