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Thin section (x200) showing neo-cutan in a channel; white areas are pores.

Thin section in the Aej showing plasmic fabric

Thin section (x200) showing secondary carbonate deposition in the C of slide #140

Thin section (x200) of BC in slide #140 showing a calcareous nodule and note the surrounding cutans

Thin section (x200) of Ae in slide #140 showing ferroargillaceous nodule.

Thin section (x200) in Ae of slide #140 showing minerals such as quartz and feldspars.

Thin section (x400) of a sesquioxidic nodule in Ae of slide #140; ordinary light

Thin section (x400) in Ae of slide #140, showing clay matrix cutting across a piece of hornblende.

Thin section (x200) of Ah in slide #140, showing weathering of biotite in an organic matrix

Thin section of Ah in slide #140; showing same as in slide #188, x200 but in ordinary light.