Figure 5. Optical microphotographs. A. Overview of laminated micrite 2 (m2) and sparry calcite 2 (spc2). Note how it occurs preferentially in geopetal orientation at the bottom of cavities and how laminae surfaces curve to mantle the substrate. The arrow indicates the contact between two major laminae characterized by an undulating topography (2.5x; interval 165-1001A-54R-1, 72-74 cm). B. Micritic lumps or "pseudopeloids" within two laminae of micrite 2 (m2), postdated by sparry calcite 2 (spc2) (6.3x; interval 165-1001A-54R-1, 72-74 cm). C. Arrow points to laminated remnant of micrite 2, which possibly underwent a phase of dissolution (2.5x; interval 165-1001A-54R-1, 72-74 cm). D. Sparry calcite 1 (spc1) is overlain by micrite 2 (m2) (6.3x; interval 165-1001A-54R-2, 87-90 cm), overlain in turn by sparry calcite 2 (spc2).