Earth:Cove

Short description: Small sheltered bay or coastal inlet

McWay Cove, California , United States

A cove is a small type of bay or coastal inlet. Coves usually have narrow, restricted entrances, are often circular or oval, and are often situated within a larger bay. Small, narrow, sheltered bays, inlets, creeks, or recesses in a coast are often considered coves.

Colloquially, the term can be used to describe a sheltered bay. Geomorphology describes coves as precipitously walled and rounded cirque-like openings as in a valley extending into or down a mountainside, or in a hollow or nook of a cliff or steep mountainside. A cove can also refer to a corner, nook, or cranny, either in a river, road, or wall, especially where the wall meets the floor.

A notable example is Lulworth Cove on the Jurassic Coast in Dorset, England. To its west, a second cove, Stair Hole, is forming.

Formation

Map showing two examples of how coves form. The rock types are those of Lulworth Cove. In example A, a river breaks through the resistant chalk back rock and limestone, leaving the weak clays to be rapidly eroded. In example B, the sea breaks through the limestone, perhaps by forming a cave, and then erodes the clay away.

Coves are formed by differential erosion, which occurs when softer rocks are worn away faster than the harder rocks surrounding them. These rocks further erode to form a circular bay with a narrow entrance, called a cove.

References

• Jackson, Julia A (1997). Glossary of Geology (4th ed.). Alexandria, VA: American Geological Institute. pp. 146–147. ISBN 0-922152-34-9. 
• Clark, John O. E.; Stiegler, Stella (2000). The Facts on File: Dictionary of Earth Science. New York: Market House Books Ltd.