Fig. 3 Sample MD 2111. Marly clay matrix thermally changed; clastic material:
quartz, pores with wide rims from cryptocrystalline carbonates. The sample was
originally fired at 950-1000°C. Microphotos, XPL. Bar represents 200pm.
Fig. 4 Sample MD 2118. Marly clay matrix thermally changed; clastic material:
quartz, pores nearly all filled by cryptocrystalline carbonates. The sample was
originally fired at 900-950°C. Microphotos, XPL. Bar represents 200pm.
229