Figure F109. Close-up of dark noncalcareous claystone with a round nodule composed of peloidal grains (fecal pellets) that are organized concentrically around the edge. The nodule formed by early carbonate cementation of pelleted clay. See text for further discussion (Subunit 5B: interval 210-1276A-62R-6, 31-39 cm).

Figure F109. Close-up of dark noncalcareous claystone with a round nodule composed of peloidal grains (fecal pellets) that are organized concentrically around the edge. The nodule formed by early carbonate cementation of pelleted clay. See text for further discussion (Subunit 5B: interval 210-1276A-62R-6, 31-39 cm).