Black Island (Black Island)
Black Island (-78.23333°N, 166.33333°W), in the Ross Archipelago, is immediately west of White Island. It was first named by the Discovery Expedition (1901–04) because of its lack of snow. The island's northernmost point is named Cape Hodgson, commemorating Thomas Vere Hodgson, one of the oldest members of the Discovery Expedition.
The highest point is Mount Aurora, a principal radio relay point. Mt. Aurora was named between 1958-1959 for the Aurora, one of the ships on Shackleton's Expedition. On the minor peak of Mount Melania is the principal earth-based ground-station for the US Antarctic Program.
Black Island is volcanic in origin, consisting of a series of trachytic lava domes and basaltic pyroclastic cones. Potassium–argon dating of Black Island volcanic rocks has given ages ranging from 1.69 to 3.8 million years. There are three main geological formations representing three eruptive sequences on Black Island: Nubian Basalt Formation, Aurora Trachyte Formation, and Melania Basalt Formation. The lack of snow is not due to volcanic activity but rather the fact that it is protected from wind by nearby Minna Bluff.
* List of volcanoes in Antarctica
* Composite Antarctic Gazetteer
* List of Antarctic islands south of 60° S
* Mount Nubian
* Mount Ochre
* SCAR
* Territorial claims in Antarctica
The highest point is Mount Aurora, a principal radio relay point. Mt. Aurora was named between 1958-1959 for the Aurora, one of the ships on Shackleton's Expedition. On the minor peak of Mount Melania is the principal earth-based ground-station for the US Antarctic Program.
Black Island is volcanic in origin, consisting of a series of trachytic lava domes and basaltic pyroclastic cones. Potassium–argon dating of Black Island volcanic rocks has given ages ranging from 1.69 to 3.8 million years. There are three main geological formations representing three eruptive sequences on Black Island: Nubian Basalt Formation, Aurora Trachyte Formation, and Melania Basalt Formation. The lack of snow is not due to volcanic activity but rather the fact that it is protected from wind by nearby Minna Bluff.
* List of volcanoes in Antarctica
* Composite Antarctic Gazetteer
* List of Antarctic islands south of 60° S
* Mount Nubian
* Mount Ochre
* SCAR
* Territorial claims in Antarctica
Map - Black Island (Black Island)
Map
Country - Antarctica
Antarctica is Earth's southernmost and least-populated continent. Situated almost entirely south of the Antarctic Circle and surrounded by the Southern Ocean (also known as the Antarctic Ocean), it contains the geographic South Pole. Antarctica is the fifth-largest continent, being about 40% larger than Europe, and has an area of 14200000 km2. Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of 1.9 km.
Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual precipitation of over 200 mm along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost 60 m. Antarctica holds the record for the lowest measured temperature on Earth, −89.2 C. The coastal regions can reach temperatures over 10 C in summer. Native species of animals include mites, nematodes, penguins, seals and tardigrades. Where vegetation occurs, it is mostly in the form of lichen or moss.
Antarctica is, on average, the coldest, driest, and windiest of the continents, and it has the highest average elevation. It is mainly a polar desert, with annual precipitation of over 200 mm along the coast and far less inland. About 70% of the world's freshwater reserves are frozen in Antarctica, which, if melted, would raise global sea levels by almost 60 m. Antarctica holds the record for the lowest measured temperature on Earth, −89.2 C. The coastal regions can reach temperatures over 10 C in summer. Native species of animals include mites, nematodes, penguins, seals and tardigrades. Where vegetation occurs, it is mostly in the form of lichen or moss.