The Mid-Atlantic Ridge is a mid-ocean ridge located along the floor of the Atlantic Ocean, and part of the longest mountain range in the world. In the North Atlantic, the ridge separates the North American from the Eurasian Plate and the African Plate, north and south of the Azores Triple Junction. In the South Atlantic, it separates the African and South American plates. The ridge extends from a junction with the Gakkel Ridge northeast of Greenland southward to the Bouvet Triple Junction in the South Atlantic. Although the Mid-Atlantic Ridge is mostly an underwater feature, portions of it have enough elevation to extend above sea level, for example in Iceland. The ridge has an average spreading rate of about 2.5 centimetres (1 in) per year.
The Neptune Range is a mountain range, 112 km (70 mi) long, lying WSW of Forrestal Range in the central part of the Pensacola Mountains in Antarctica. The range is composed of Washington Escarpment with its associated ridges, valleys and peaks, the Iroquois Plateau, and the Schmidt and Williams Hills. It was discovered and photographed on 13 January 1956 on a US Navy transcontinental plane flight from McMurdo Sound to Weddell Sea and return.
Pedro Bank is a large bank of sand and coral, partially covered with seagrass, about 80 km south and southwest of Jamaica, rising steeply from a seabed of 800 metres depth. It slopes gently from the Pedro Cays to the west and north with depths from 13 to 30 metres. The total area of the bank within the 100-metre (328-foot) isobath measures 8,040 square kilometres. The area of a depth to 40 metres is triangular, 70 kilometres long east-west, and 43 kilometres wide. 2,400 square kilometres are less than 20 metres deep. With its islets, cays and rocks, a total land area of 270,000 m2 (2,906,256 sq ft), it is the location of one of the two offshore island groups of Jamaica, the other one being the Morant Cays. The bank is centered at 17°06′N78°20′W.
This is a list of the extreme points of Azerbaijan, the points that are farther north, south, east or west than any other location.
Gony Point is a high tussock-covered point 0.5 miles (0.8 km) southwest of Cardno Point, on the southeast side of Bird Island, South Georgia. It was surveyed by the South Georgia Survey in the period 1951–57, and named by the UK Antarctic Place-Names Committee in 1963. Gony is an old sailors' name for the wandering albatross, which breeds on Bird Island.
Skua Island is an island immediately northeast of Prion Island in the entrance to the Bay of Isles, South Georgia. Charted in 1912-13 by Robert Cushman Murphy, American naturalist aboard the brig Daisy. Surveyed in 1929-30 by DI personnel and named in association with Albatross Island, Prion Island and other natural history names given in the Bay of Isles by Murphy in 1912–13.
Yeats Glacier is a tributary glacier about 8 miles (13 km) long, flowing west from the north side of Mount Finley to enter Shackleton Glacier just north of Lockhart Ridge, in the Queen Maud Mountains. Named by F. Alton Wade, leader of the Texas Tech Shackleton Glacier Expedition, for Vestal L. Yeats, a member of the Texas Technological College faculty and of both expeditions.
On the continent of Antarctica, the Aramis Range is the third range south in the Prince Charles Mountains, situated 11 miles southeast of the Porthos Range and extending for about 30 miles in a southwest–northeast direction. It was first visited in January 1957 by Australian National Antarctic Research Expeditions (ANARE) southern party led by W.G. Bewsher, who named it for a character in Alexandre Dumas' novel The Three Musketeers, the most popular book read on the southern journey.
The borders of the oceans are the limits of Earth's oceanic waters. The definition and number of oceans can vary depending on the adopted criteria. The principal divisions of the five oceans are the Pacific Ocean, Atlantic Ocean, Indian Ocean, Southern (Antarctic) Ocean, and Arctic Ocean. Smaller regions of the oceans are called seas, gulfs, bays, straits, and other terms. Geologically, an ocean is an area of oceanic crust covered by water.
Bird Sound is a hazardous but navigable sound, 1 nautical mile (2 km) long and 0.5 nautical miles (1 km) wide, separating Bird Island from the west end of South Georgia. The names "La Roche Strait" and "Bird Sound" were used interchangeably for this feature on charts for many years. Bird Sound, which takes its name from nearby Bird Island, is approved on the basis of local usage.
Olsen Rock is a rock lying 0.5 nautical miles (0.9 km) southeast of Cape Paryadin, off the west end of South Georgia. Charted by DI personnel in 1926–27. Surveyed by the SGS in the period 1951–57, and named by the United Kingdom Antarctic Place-Names Committee (UK-APC) for Soren Olsen, gunner of the South Georgia Whaling Co. at Leith Harbor, 1926–30, 1933–39 and 1945–53.
Jordan Cove is a small cove which is the principal indentation in the south side of Bird Island, off the west end of South Georgia, near Antarctica.
Elliott Rock is a rock lying in Stewart Strait, close west of Bird Island, off the west end of South Georgia. It was positioned by Discovery Investigations personnel under Lieutenant Commander J.M. Chaplin in the period 1926–30, and was named in 1957 by the UK Antarctic Place-Names Committee for Henry W. Elliott (1846–1930), an American naturalist who was a pioneer of fur seal studies in the North Pacific and a lifelong champion of fur seal protection. Fur seals breed on nearby Bird Island.
Fantome Rock is a dangerous rock in the middle of Bird Sound, South Georgia, lying 0.1 nautical miles (0.2 km) south of Gony Point, Bird Island. It was charted by Discovery Investigations personnel on the Discovery in the period 1926–30 and named by the UK Antarctic Place-Names Committee in 1963 for HMS Owen's motor cutter, used in a survey of this area in February–March 1961, and lost in heavy seas near this rock.
Farewell Point is a point which forms the northeast extremity of Bird Island, off the west end of South Georgia. The name appears to have been applied by Discovery Investigations personnel who charted South Georgia in the period 1926–30.
Temple Glacier is a glacier flowing into the south side of Lanchester Bay on the west coast of Graham Land. Photographed by Hunting Aerosurveys Ltd. in 1955-57 and mapped from these photos by the Falkland Islands Dependencies Survey (FIDS). Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) in 1960 for Félix du Temple de la Croix (1823–1890), French naval officer who in 1857 designed the first powered model airplane to rise unaided, fly freely and land safely.
Hornaday Rock is a rock lying in Bird Sound, 0.6 nautical miles (1.1 km) west-southwest of Cape Alexandra at the west end of South Georgia. The feature appears on charts dating back to the 1930s. It was recharted by the South Georgia Survey in the period 1951–57, and named by the UK Antarctic Place-Names Committee for William T. Hornaday, an American zoologist who was Director of the New York Zoological Park, 1896–1926. From 1907 he was a leader in the fight to introduce protective legislation for fur seals; fur seals breed on nearby Bird Island.
Parthenina interstincta is a rather widely distributed species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.
This article incorporates public domain material from "Square Rock". Geographic Names Information System . United States Geological Survey. 
