The stones used to backfill the quarry are those which underlie the Givetian limestone extracted in the Bellignies quarry.
There is Sarrasin de Bettrechies, a coarse shelly limestone, deep gray, yellowish when it outcrops, detrital ferruginous dated to the Lower Cenomanian epoch, a hundred million years ago.
There is clay and very glauconitic marl of the Upper Cenomanian stage, enriched by a pebble conglomerate paléozoïc stones.
These rocks contain Praeactinocamax plenus, Chlamys asper, Ostrea diluviana and radiated fossils: Janira quadricostata, Cyprina ligeriensis, Arca mailleana.
There is also bluish marl of the Turonian.
The stones used to backfill the quarry are those which underlie the Givetian limestone extracted in the Bellignies quarry. There is Sarrasin de Bettrechies, a coarse shelly limestone, deep gray, yellowish when it outcrops, detrital ferruginous dated to the Lower Cenomanian epoch, a hundred million years ago. There is clay and very glauconitic marl of the Upper Cenomanian stage, enriched by a pebble conglomerate paléozoïc stones. These rocks contain Praeactinocamax plenus, Chlamys asper, Ostrea diluviana and radiated fossils: Janira quadricostata, Cyprina ligeriensis, Arca mailleana. There is also bluish marl of the Turonian.
Carrière des Nerviens Regional Nature Reserve