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Mount Estes
Black Island () is an island in the Ross Archipelago. It is long and projects through the Ross Ice Shelf to a height of . It was discovered by the British National Antarctic Expedition (''Discovery'' Expedition, 1901–04), which named it for its appearance. The island is largely ice-free and primarily composed of black volcanic rock. The island's northernmost point is named Cape Hodgson, named after Thomas Vere Hodgson, one of the oldest members of the ''Discovery'' Expedition. Location Black Island is in the Ross Ice Shelf, to the northeast of Mount Discovery, and southeast of the Brown Peninsula. White Strait runs past the east end of the island, separating it from White Island (Ross Archipelago), White Island to the east. Minna Bluff is to the south. Geology Black Island is volcanic in origin, consisting of a series of trachytic lava domes and basaltic pyroclastic cones. Potassium–argon dating of the island's volcanic rocks has given ages ranging from 1.69 to 3.8& ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 . Most of Antarctica is covered by the Antarctic ice sheet, with an average thickness of . 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 Climate of Antarctica#Precipitation, precipitation of over 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 . Antarctica holds the record for the Lowest temperature recorded on Earth, lowest measured temperature on Earth, . The coastal regions can reach temperatures over in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
