The Balleny Islands are a series of uninhabited islands in the Southern Ocean extending from 66°15' to 67°35'S and 162°30' to 165°00'E. The group extends for about 160 km (99 mi) in a northwest–southeast direction. The islands are heavily glaciated and of volcanic origin. Glaciers project from their slopes into the sea. The islands were formed by the so-called Balleny hotspot.
The Pacific-Antarctic Ridge is a divergent tectonic plate boundary located on the seafloor of the South Pacific Ocean, separating the Pacific Plate from the Antarctic Plate. It is regarded as the southern section of the East Pacific Rise in some usages, generally south of the Challenger Fracture Zone and stretching to the Macquarie Triple Junction south of New Zealand.
Smith Island is 20 miles (32 km) long and 5 miles wide, lying 49 miles (79 km) west of Deception Island in the South Shetland Islands of the British Antarctic Territory. It is separated from Snow Island by the 25 miles (40 km)-wide Boyd Strait, and from Low Island by the 17 miles (27 km)-wide Osmar Strait. Surface area is 148 square kilometres (57 sq mi).
Liège Island is an island, 17 kilometres (9 nmi) long and 5.6 kilometres (3 nmi) wide, lying immediately northeast of Brabant Island in the Palmer Archipelago, and separated from Hoseason Island and Christiania Islands to the northeast by Croker Passage. Its interior is occupied by Brugmann Mountains.
The Possession Islands are a group of small islands and rocks extending over an area of about 7 nautical miles, lying in the western part of the Ross Sea, lying 5 nautical miles south-east of Cape McCormick, in Victoria Land, Antarctica. The Possession Islands were named by Captain James Clark Ross, Royal Navy, in commemoration of the planting of the British flag here on January 12, 1841.
Sewing-Machine Needles, also known as Rocas Ministro Ezcurra is a group of three prominent rock needles, the highest 45 m above water, lying close southeast of Rancho Point, Deception Island, in the South Shetland Islands. The name Sewing-Machine Rock was given by whalers for what was originally a conspicuous natural arch. Needles is now considered the more suitable descriptive term; an earthquake tremor in 1924 caused the arch to collapse. The name Rocas Ministro Ezcurra was given by Dr Douglas Mawson, leader of the Australasian Antarctic Expedition of 1912-14.
The Shackleton fracture zone (SFZ) is an undersea fracture zone, mid-oceanic ridge and fault located in the Drake Passage, at the separation between the Scotia plate from the Antarctic plate. It extends between 59° and 60°40' south latitude and between 56°30' and 61° west longitude and runs in a northwest to southeast direction from the South American continental shelf to the South Shetland Islands. Chile claims the area as part of its Outer Continental Shelf boundary.
The Zed Islands are a small group of islands, the westernmost rising to 290 m (951 ft), lying off the northeast extremity of Livingston Island in the South Shetland Islands, Antarctica comprising four islands: Esperanto Island, Phanagoria Island, Lesidren Island and Koshava Island, and the adjacent Dlagnya and Goritsa Rocks. The group is separated from Williams Point on Varna Peninsula, Livingston Island to the south by the 1.50 km (0.93 mi) wide Iglika Passage.
Express Island is a narrow and craggy island, 1.23 kilometres (0.76 mi) long, lying close offshore of northwest Greenwich Island in the South Shetland Islands, Antarctica. It is situated due north of Greaves Peak, forming most of the east side of Razlog Cove. Surface area 29 hectares.
The Detroit Plateau is a major interior plateau of Graham Land on the Antarctic Peninsula, with heights between 1,500 and 1,800 metres. Its northeast limit is marked by the south wall of Russell West Glacier, from which it extends some 90 nautical miles in a general southwest direction to Herbert Plateau.
Astrolabe Island is an island 3 nautical miles long, lying in the Bransfield Strait 14 nautical miles northwest of Cape Ducorps, Trinity Peninsula in Antarctica.
Telefon Bay is a small bay on the north-west coast of Port Foster, Deception Island, in the South Shetland Islands of Antarctica. It is surmounted by Telefon Ridge. The name appears on the chart of the French Antarctic Expedition under Charcot, 1908–10.
Nedelya Point is a sharp ice-free point at the southwest extremity of Ivanov Beach on the north coast of Livingston Island in the South Shetland Islands, Antarctica, projecting 300 m into Barclay Bay. It is linked by a chain of rocks to Cutler Stack, located 310 m to the north-northwest. The feature was visited by a field party from the British base camp Station P during the summer season 1957/58. It is part of the Antarctic Specially Protected Area ASPA 126 Byers Peninsula, situated in one of its two restricted zones.
The Edgeworth Glacier is a glacier 12 nautical miles long, flowing south-southwestwards from the edge of Detroit Plateau below Wolseley Buttress to the ice shelf west of Sobral Peninsula, Graham Land, Antarctica.
Loubat Point is a point forming the north side of the entrance to Deloncle Bay in Kyiv Peninsula, on the west coast of Graham Land, Antarctica. While probably first seen by the Belgian Antarctic Expedition, 1897–99, it was resighted by the French Antarctic Expedition, 1903–05, and named by Jean-Baptiste Charcot for a Monsieur de Loubat.
Sjögren Glacier is a glacier 15 nautical miles long in the south part of Trinity Peninsula, Antarctica. It flows southeast from Detroit Plateau to the south side of Mount Wild, where it enters Prince Gustav Channel.
Lanchester Bay is a bay 7 nautical miles wide lying east of Havilland Point, along the west coast of Graham Land, Antarctica.
Odrin Bay is a 10 kilometres (6.2 mi) wide bay indenting for 7 kilometres (4.3 mi) along the Nordenskjöld Coast in Graham Land, Antarctica. It is entered southwest of Fothergill Point and northeast of Spoluka Point.
Desudava Glacier is the 15.5 kilometres (9.6 mi) long and 5 kilometres (3.1 mi) wide glacier on Nordenskjöld Coast in Graham Land, Antarctica situated south of Dinsmoor Glacier and east-northeast of Boryana Glacier.
