Fig. 1 Sample MD 2115. Marly clay matrix slightly thermally changed; clastic
material: quartz, coarse and cryptocrystalline carbonates, opaque mineral and
rock fragments. The sample was originally fired at 800-850°C.
Microphotos, XPL. Bar represents 200pm.
Fig. 2 Sample MD 2112. The matrix is isotropic, strongly thermally changed;
clastic material: quartz, some pores with rims from cryptocrystalline carbonates,
rock fragments. The sample was originally fired at 1000-1050°C.
Microphotos, XPL. Bar represents 200pm.
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