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Antarctica covers more than 14.2 million km 2 (5,500,000 sq mi), almost double the area of Australia, making it the fifth-largest continent, and comparable to the surface area of Pluto.
The Marie Byrd Land makes up a large portion of West Antarctica, consisting of the Area below the Antarctic Peninsula. The Marie Byrd land is a large formation of volcanic rock, characterized by 18 exposed and subglacial volcanoes. 16 of the 18 volcanoes are entirely covered by the antarctic ice sheet. [10]
All territorial claims in Antarctica are in abeyance under the Antarctic Treaty System. Antarctica is a special case, for if its ice is considered not as land, but as water, it is not a single landmass, but several landmasses of much smaller area, since the ice-bedrock boundary is below sea level in many regions of the continent. [5]
Dymaxion map of the world with the 30 largest countries and territories by area. This is a list of the world's countries and their dependencies, ranked by total area, including land and water. This list includes entries that are not limited to those in the ISO 3166-1 standard, which covers sovereign states and dependent territories.
World (excluding Antarctica) 60 160: 8,045,311,448: 134,740,000 ... List of countries and dependencies by area; List of countries and dependencies by population;
Equinox to equinox in line with the sun's seasonal influence, the Antarctic ice pack fluctuates from an average minimum of 2.6 million square kilometres (1.0 × 10 ^ 6 sq mi) in March to about 18.8 million square kilometres (7.3 × 10 ^ 6 sq mi) in September, more than a sevenfold increase in area.
The region covers some 20 percent of the Southern Hemisphere, of which 5.5 percent (14 million km 2) is the surface area of the Antarctica continent itself. All of the land and ice shelves south of 60°S latitude are administered under the Antarctic Treaty System .
Marie Byrd Land (MBL) is an unclaimed region of Antarctica.With an area of 1,610,000 km 2 (620,000 sq mi), it is the largest unclaimed territory on Earth. It was named after the wife of American naval officer Richard E. Byrd, who explored the region in the early 20th century.