Ferruginous, slightly calcareous matrix with sand-sized, non-plastic inclusions, including sporadic ferruginous ooliths with concentric inner structure and round voids with tiny opaque crust.
Description
Ferruginous, slightly calcareous matrix with sand-sized, non-plastic inclusions, including sporadic ferruginous ooliths with concentric inner structure and round voids with tiny opaque crust.
