Eolianite

Eolianite or aeolianite is any rock formed by the lithification of sediment deposited by aeolian processes; that is, the wind.

In common use, however, the term refers specifically to the most common form of eolianite: coastal limestone consisting of carbonate sediment of shallow marine biogenic origin, formed into coastal dunes by the wind, and subsequently lithified.

It is also known as kurkar in the Middle East, miliolite in India and Arabia, and grès dunaire in the eastern Mediterranean.

Sayles coined the term in 1931, when he described the dune-shaped hills of Bermuda, consisting of bioclastic grainstones.

Thus, Bermuda is considered the type locality for carbonate eolianite facies, with clearly defined cross-bedding, foresets, and topsets.

Holocene eolianite on Long Island, Bahamas .
Eolianite, Horseshoe Bay, Bermuda
Eolianite outcrop at Aikerness on the island of Orkney , Scotland