Figure F28. Microfacies of reddish brown granule-pebble conglomerate between basalt flows (Sample 192-1186A-32R-3 [Piece 5, 79-82 cm]; early Aptian) (field of view = 5.5 mm; plane-polarized light; photomicrograph ID# 1186AS_26). Clasts are mainly radiolarian wackestone to packstone (e.g., clasts at top and right) with variable amounts of small particles presumed to be Fe oxyhydroxide. Other clasts in the conglomerate layer include foraminifer wackestone (e.g., clast spanning the middle to left side of this view), large glass shards or hyaloclasts with green clay alteration rims (example at bottom), and concentrations of opaque minerals with calcite microspar.

Figure F28. Microfacies of reddish brown granule-pebble conglomerate between basalt flows (Sample 192-1186A-32R-3 [Piece 5, 79-82 cm]; early Aptian) (field of view = 5.5 mm; plane-polarized light; photomicrograph ID# 1186AS_26). Clasts are mainly radiolarian wackestone to packstone (e.g., clasts at top and right) with variable amounts of small particles presumed to be Fe oxyhydroxide. Other clasts in the conglomerate layer include foraminifer wackestone (e.g., clast spanning the middle to left side of this view), large glass shards or hyaloclasts with green clay alteration rims (example at bottom), and concentrations of opaque minerals with calcite microspar.