A Shingle Beach On The Black Sea Royalty-Free Stock Photo

A beach composed chiefly of surface pebbles is commonly termed a shingle beach. This type of beach has armoring characteristics with respect to wave erosion, as well as ecological niches that provide habitat for animals and plants. A pebble is a clast of rock with a particle size of 4 to 64 millimetres based on the Krumbein phi scale of sedimentology. Pebbles are generally considered larger than granules 2 to 4 millimetres diameter and smaller than cobbles 64 to 256 millimetres diameter.