Figure F110. Photomicrograph of concretion in Subunit 5B mudstone under plane-polarized light. Vaguely pelleted mudstone with darker pellets (P) cemented by dolomicrite (m) is cut by a round, porous (s = pore spaces) burrow (lower center) partly filled with smaller pellets likely left by the burrowing organism. This concretion provides a glimpse of the original texture of the burrowed mudstones in this unit (Subunit 5B: Sample 210-1276A-60R-2, 25-27 cm).

Figure F110. Photomicrograph of concretion in Subunit 5B mudstone under plane-polarized light. Vaguely pelleted mudstone with darker pellets (P) cemented by dolomicrite (m) is cut by a round, porous (s = pore spaces) burrow (lower center) partly filled with smaller pellets likely left by the burrowing organism. This concretion provides a glimpse of the original texture of the burrowed mudstones in this unit (Subunit 5B: Sample 210-1276A-60R-2, 25-27 cm).