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.
Sturge Island is one of the three main islands in the uninhabited Balleny Islands group located in the Southern Ocean. It lies 25 kilometres (16 mi) southeast of Buckle Island and 95 kilometres (59 mi) northeast of Belousov Point on the Antarctic mainland. The islands were discovered by John Balleny in 1839. The island was named after Thomas Sturge, one of the London merchants who had financed the expedition led by Balleny.
Sabrina Coast is that portion of the coast of Wilkes Land, Antarctica, lying between Cape Waldron, at 115° 33' E, and Cape Southard, at 122° 05' E. John Balleny has long been credited with having seen land in March 1839 at about 117° E.
The Rockall Basin is a large sedimentary basin that lies to the west of Ireland and the United Kingdom beneath the major deepwater area known as the Rockall Trough. It is named after Rockall, a rocky islet lying 301.4 km west of St Kilda.
JOIDES Basin is a northeast trending undersea basin of the central Ross continental shelf. It was named for the "Joint Oceanographic Institutes Deep Earth Sampling" project, the name being approved by the Advisory Committee for Undersea Features in June 1988.
Astrid Ridge is an undersea ridge on the continental margin of Dronning Maud Land, East Antarctica. It is present on the GEBCO 5th edition charts. The name was approved by the Advisory Committee for Undersea Features in June 1987.
Adare Seamounts, also known as Adare Mountains, are the seamounts in Balleny Basin named in association with Adare Peninsula and Cape Adare. Name approved by the Advisory Committee on Undersea Features, June 1988.
Dibble Basin is an undersea basin in the Antarctic Ocean. The name was approved by the Advisory Committee on Undersea Features in December 1971.
Balleny Fracture Zone is an undersea fracture zone that extends south towards the Balleny Islands. The name was approved by the Advisory Committee for Undersea Features in December 1971.
Balleny Seamounts are seamounts named in association with the Balleny Islands. The name was approved by the Advisory Committee for Undersea Features in June 1988.
Balleny Trough is an undersea trough named in association with the Balleny Islands. The name was approved by the Advisory Committee for Undersea Features in February 1972.
Borchgrevink Canyon is an undersea canyon on the continental rise east of Iselin Bank in the Ross Sea. It was named in association with Borchgrevink Coast, the name being approved by the Advisory Committee for Undersea Features in June 1988.
Borradaile Island is one of the Balleny Islands. It was the site of the first landing south of the Antarctic Circle, and features the "remarkable pinnacle" called Beale Pinnacle, near Cape Beale on its south-eastern coast, and Cape Scoresby on its north-western coast.
Umitaka Bank is a submarine bank in the Balleny Islands area. It was named after the research vessel Umitaku-Maru of the Tokyo University of Fisheries, which took soundings in the area (1964–65). Name approved 4/80.
Drygalski Basin is an undersea basin named as such by the Advisory Committee for Undersea Features (ACUF) in April 1980, in association with Drygalski Ice Tongue. The name was changed to "Von Drygalski" in November 1995, in agreement with the General Bathymetric Chart of the Oceans Sub-Committee on Undersea Feature Names, but was changed back to Drygalski Basin by ACUF in June 2003.
Emerald Fracture Zone is an undersea fracture zone running the distance from the southwest corner of the Campbell Plateau to the northern tip of Iselin Bank. The name was proposed by Dr. Steven C. Cande of the Scripps Institution of Oceanography for the vessel Emerald, which traversed this region in 1821, and was approved by the Advisory Committee for Undersea Features in June 1997.
Cape Frances is a cape on the east side of Sturge Island in the Balleny Islands. In 1841, Captain James C. Ross, viewing Sturge Island from a considerable distance, thought it a group of three islands and named the center island, Frances. This error was discovered in 1904 by Captain Robert F. Scott, who applied the name to this cape.
Cape Freeman is a cape forming the north end of Sturge Island in the Balleny Islands. It was named for H. Freeman, commander of the cutter Sabrina, which sailed with the schooner Eliza Scott, resulting in the discovery of the Balleny Islands in 1839.
Vaughan Bank is a submarine bank in the Balleny Islands area. It was named for V. J. Vaughan, Commanding Officer, USS Glacier used in the U.S./New Zealand Balleny Island Expedition (1965). Name approved 4/80.
Somov Sea was a proposed name for part of the Southern Ocean. It would be located north of the easternmost part of the Antarctic subcontinent East Antarctica, north of Oates Coast, Victoria Land, and of George V Coast, between 150° and 170° East. West of it would be the D'Urville Sea. East of Cape Adare, at 170°14' East, is the Ross Sea.
