Young Blonde Girl With Blue Eyes Strips Her Gold Bikini At The Sea On The Shingle Beach With Pebbles

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 which can provide habitat for animals and plants.
Pebbles come in various colors and textures, and can have streaks of quartz and different colored sedimentary rock. Pebbles are mostly smooth but, dependent on how frequently they come in contact with the sea, they can have marks of contact with other rocks or other pebbles. Pebbles left above the high water mark may have growths of organisms such as lichen on them, signifying the lack of contact with sea water.
Pebbles can also be found inland where ancient seas used to cover the land, when the seas retreat the rocks become landlocked. They can also be found in ponds. Pebbles can also form in rivers, and travel into estuaries where the smoothing continues in the sea.