Calcareous plankton and sediment particles can be found in the water column above the CCD . If the sea bed is above the CCD, bottom sediments can consist of calcareous sediments called abyssal clay deposited on top of the carbonate layer.
12.
The third type of tesselation recognized by Branagan Often, the outlines of the polygons formed by this type of cracking are preserved and accentuated by the infilling of the cracks with material of a different composition from that of either the clayey or calcareous sediments in which the cracks form.
