closeup on amonite shell contained in a rock of jurassic cliff in kimmeridge bay, prehistoric rocks containing dolomitic limestone

isolated block frame texture dolomite fossil limestone sedimentary shells agglomerate porous uk layer layered sandstone ledge tourism shale cliffs england conservation area bands hunting kimmeridge clay formation purbeck marine wildlife reserve world heritage site shore rough pattern geology cliff erosion coastal layers lyme regis dorset coast jurassic mineral climate change rock surface landscape stratum material background earth geological