Figure F28. High- and low-magnification photomicrographs of carbonate-cemented grainstone in Unit 2 (Sample 210-1276A-13R-2, 60-63 cm). Both images are in plane-polarized light. A. Close-up view showing some of the main components in Unit 2 grainstones: bryozoan (B) on left, broken benthic foraminifer fragment (D; discocyclinid?), and convex fragment of ostracode shell (O) in right center. B. General view showing moderate sorting and alignment of large disc-shaped (D; discocyclinid?) and thicker-walled (N; nummulitid?) benthic foraminifers.

Figure F28. High- and low-magnification photomicrographs of carbonate-cemented grainstone in Unit 2 (Sample 210-1276A-13R-2, 60-63 cm). Both images are in plane-polarized light. A. Close-up view showing some of the main components in Unit 2 grainstones: bryozoan (B) on left, broken benthic foraminifer fragment (D; discocyclinid?), and convex fragment of ostracode shell (O) in right center. B. General view showing moderate sorting and alignment of large disc-shaped (D; discocyclinid?) and thicker-walled (N; nummulitid?) benthic foraminifers.