A bay is a recessed, coastal body of water that directly connects to a larger main body of water, such as an ocean , a lake , or another bay. A large bay is usually called a gulf , sea , sound , or bight . A cove is a small, circular bay with a narrow entrance. A fjord is an elongated bay formed by glacial action. The term embayment is also used for related features , such as extinct bays or freshwater environments.
11-620: Bridger Bay ( 60°33′S 45°51′W / 60.550°S 45.850°W / -60.550; -45.850 ) is a semi-circular bay 2.5 nautical miles (5 km) wide, lying west of Tickell Head along the north coast of Coronation Island , in the South Orkney Islands . It was discovered in 1821 in the course of the joint cruise by Captain Nathaniel Palmer , an American sealer, and Captain George Powell ,
22-656: A British sealer. It was surveyed by the Falkland Islands Dependencies Survey in 1956–58 and named by the UK Antarctic Place-Names Committee for John F.D. Bridger , who participated in the survey of Coronation Island and Signy Island . [REDACTED] This article incorporates public domain material from "Bridger Bay" . Geographic Names Information System . United States Geological Survey . This South Orkney Islands location article
33-441: A bay often reduces the strength of winds and blocks waves . Bays may have as wide a variety of shoreline characteristics as other shorelines. In some cases, bays have beaches , which "are usually characterized by a steep upper foreshore with a broad, flat fronting terrace". Bays were significant in the history of human settlement because they provided easy access to marine resources like fisheries . Later they were important in
44-453: A bay unless its area is as large as (or larger than) that of the semi-circle whose diameter is a line drawn across the mouth of that indentation — otherwise it would be referred to as a bight . There are various ways in which bays can form. The largest bays have developed through plate tectonics . As the super-continent Pangaea broke up along curved and indented fault lines, the continents moved apart and left large bays; these include
55-591: Is a stub . You can help Misplaced Pages by expanding it . Bay A bay can be the estuary of a river, such as the Chesapeake Bay , an estuary of the Susquehanna River . Bays may also be nested within each other; for example, James Bay is an arm of Hudson Bay in northeastern Canada . Some large bays, such as the Bay of Bengal and Hudson Bay, have varied marine geology . The land surrounding
66-665: Is a coastal inlet formed by the partial submergence of an unglaciated river valley . It is a drowned river valley that remains open to the sea. Typically rias have a dendritic , treelike outline although they can be straight and without significant branches. This pattern is inherited from the dendritic drainage pattern of the flooded river valley. The drowning of river valleys along a stretch of coast and formation of rias results in an extremely irregular and indented coastline. Often, there are naturally occurring islands, which are summits of partly submerged, pre-existing hill peaks. (Islands may also be artificial, such as those constructed for
77-540: The Chesapeake Bay Bridge-Tunnel .) A ria coast is a coastline having several parallel rias separated by prominent ridges, extending a distance inland. The sea level change that caused the submergence of a river valley may be either eustatic (where global sea levels rise), or isostatic (where the local land sinks). The result is often a very large estuary at the mouth of a relatively insignificant river (or else sediments would quickly fill
88-570: The Gulf of Guinea , the Gulf of Mexico , and the Bay of Bengal , which is the world's largest bay. Bays also form through coastal erosion by rivers and glaciers . A bay formed by a glacier is a fjord . Rias are created by rivers and are characterised by more gradual slopes. Deposits of softer rocks erode more rapidly, forming bays, while harder rocks erode less quickly, leaving headlands . Ria A ria ( / ˈ r iː ə / ; Galician : ría , feminine noun derived from río , river)
99-527: The development of sea trade as the safe anchorage they provide encouraged their selection as ports . The United Nations Convention on the Law of the Sea defines a bay as a well-marked indentation in the coastline, whose penetration is in such proportion to the width of its mouth as to contain land-locked waters and constitute more than a mere curvature of the coast. An indentation, however, shall not be regarded as
110-609: The ria). The Kingsbridge Estuary in Devon , England, is an extreme example of a ria forming an estuary disproportionate to the size of its river; no significant river flows into it at all, only a number of small streams. The word ria comes from Galician ría which comes from río (river). Rias are present all along the Galician coast in Spain . As originally defined, the term was restricted to drowned river valleys cut parallel to
121-440: The structure of the country rock that was at right angles to the coastline. However the definition of ria was later expanded to other flooded river valleys regardless of the structure of the country rock. For a time European geomorphologists considered rias to include any broad estuarine river mouth, including fjords . These are long narrow inlets with steep sides or cliffs, created in a valley carved by glacial activity . In
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