South Sandwich Islands in the context of "60th parallel south"

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⭐ Core Definition: South Sandwich Islands

The South Sandwich Islands (Spanish: Islas Sandwich del Sur) are a chain of uninhabited volcanic islands in the South Atlantic Ocean. They are administered as part of the British Overseas Territory of South Georgia and the South Sandwich Islands. The chain lies in the sub-Antarctic region, about 700 kilometres (430 mi) southeast of South Georgia and 1,700 kilometres (1,100 mi) northeast from the tip of the Antarctic Peninsula.

The archipelago comprises 11 main islands forming an island arc running north–south, the largest being Montagu at 110 square kilometres (42 sq mi). It is divided into four groups, from north to south: The Traversay, Candlemas and Central Islands (Saunders, Montagu, and Bristol), and Southern Thule.

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👉 South Sandwich Islands in the context of 60th parallel south

The 60th parallel south is a circle of latitude that is 60 degrees south of Earth's equatorial plane. No land lies on the parallel—it crosses nothing but ocean. The closest land is a group of rocks north of Coronation Island (Melson Rocks or Governor Islands) of the South Orkney Islands, which are about 54 km south of the parallel, and Thule Island and Cook Island of the South Sandwich Islands, which both are about 57 km north of the parallel (with Cook Island slightly closer).

The parallel marks the northern limit of the Southern Ocean (though some organisations and countries, notably Australia, have other definitions) and of the Antarctic Treaty System. It also marks the southern boundary of the South Pacific Nuclear-Weapon-Free Zone and the Latin American Nuclear-Weapon-Free Zone.

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South Sandwich Islands in the context of South Georgia and the South Sandwich Islands

South Georgia and the South Sandwich Islands (SGSSI) is a British Overseas Territory in the southern Atlantic Ocean. It is a remote and inhospitable collection of islands, consisting of South Georgia and a chain of smaller islands known as the South Sandwich Islands. South Georgia is 165 kilometres (103 mi) long and 35 kilometres (22 mi) wide and is by far the largest island in the territory. The South Sandwich Islands lie about 700 kilometres (430 mi) southeast of South Georgia. The territory's total land area is 3,903 km (1,507 sq mi). The Falkland Islands are about 1,300 kilometres (810 mi) west from its nearest point.

The South Sandwich Islands are uninhabited, and a very small non-permanent population resides on South Georgia. There are no scheduled passenger flights or ferries to or from the territory, although visits by cruise liners to South Georgia are increasingly popular, with several thousand visitors each summer.

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South Sandwich Islands in the context of Bouvet Island

Bouvet Island (/ˈbv/ BOO-vay; Norwegian: Bouvetøya [bʉˈvèːœʏɑ]) is an uninhabited subantarctic volcanic island and dependency of Norway. A protected nature reserve situated in the South Atlantic Ocean at the southern end of the Mid-Atlantic Ridge, it is the world's most remote island. Located north of the Antarctic Circle, Bouvet Island is not part of the southern region covered by the Antarctic Treaty System.

The island lies 1,700 km (1,100 mi; 920 nmi) north of the Princess Astrid Coast of Queen Maud Land, Antarctica, 1,870 km (1,160 mi; 1,010 nmi) east of the South Sandwich Islands, 1,845 km (1,146 mi; 996 nmi) south of Gough Island, and 2,520 km (1,570 mi; 1,360 nmi) south-southwest of the coast of South Africa. It has an area of 49 km (19 sq mi), 93 percent of which is covered by a glacier. The centre of the island is the ice-filled crater of an inactive volcano. Some skerries and one smaller island, Larsøya, lie along its coast. Nyrøysa, created by a rockslide in the late 1950s, is the only easy place to land and is the location of a weather station.

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South Sandwich Islands in the context of Fur trade

The fur trade is a worldwide industry dealing in the acquisition and sale of animal fur. Since the establishment of a world fur market in the early modern period, furs of boreal, polar and cold temperate mammalian animals have been the most valued. Historically the trade stimulated the exploration and colonization of Siberia, northern North America, and the South Shetland and South Sandwich Islands.

Today the importance of the fur trade has diminished; it is based on pelts produced at fur farms and regulated fur-bearer trapping, but has become controversial. Animal rights organizations oppose the fur trade, citing that animals are brutally killed and sometimes skinned alive. Fur has been replaced in some clothing by synthetic imitations, for example, as in ruffs on hoods of parkas.

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South Sandwich Islands in the context of Sandwich Plate

The South Sandwich plate or the Sandwich plate (not to be confused with a culinary sandwich plate) is a small tectonic plate (microplate) bounded by the subducting South American plate to the east, the Antarctic plate to the south, and the Scotia plate to the west. The plate is separated from the Scotia plate by the East Scotia Rise, a back-arc spreading ridge formed by the subduction zone on its eastern margin. The South Sandwich Islands are located on this microplate.

The initiation of the South Sandwich subduction zone, a convergent plate margin, began around 66 million years ago in response to regional convergence of the Antarctic and South American tectonic plates. Gradual extension of the Scotia Sea and subduction roll back of South American oceanic lithosphere created the ancestral Scotia plate. The South Sandwich Microplate separated from the Scotia plate around 15 million years ago as a back arc basin formed with development of the East Scotia Rise. There is continued debate over the reason for the separation of the South Sandwich plate from the Scotia plate. Two primary mechanisms have been proposed, subducting slab roll back and absolute motion of the Scotia plate away from the trench. A combination of these two mechanisms could also contribute to the current plate boundary configurations.

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South Sandwich Islands in the context of Thule Island

Thule Island, also called Morrell Island, is one of the southernmost of the South Sandwich Islands, part of the grouping known as Southern Thule. It is named, on account of its remote location, after the mythical land of Thule, said by ancient geographers to lie at the extreme end of the Earth. The alternative name Morrell Island is after Benjamin Morrell, an American explorer and whaling captain. The island was espied by James Cook and his Resolution crew on 31 January 1775 during his attempt to find Terra Australis.

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South Sandwich Islands in the context of Montagu Island

Montagu Island is the largest of the South Sandwich Islands, located in the Scotia Sea off the coast of Antarctica. Almost entirely ice-covered with only sparse rocky outcrops, Montagu consists of a large caldera with a large parasitic cone, Mount Oceanite. Several secondary volcanic cones have formed in the caldera, including Mount Belinda.

The island is rarely visited owing to the remote location, and there is only sparse vegetation. Penguins and seabirds live along the coasts. Before an eruption in 2001, which continued for several years and formed a lava delta on the northern coast, Mount Belinda was not known to have been active during the Holocene (the past 12,000 years).

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