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The Kalahari Basin, also known as the Kalahari Depression, Okavango Basin or the Makgadikgadi Basin, [1] is an endorheic basin and large lowland area covering approximately 725,293 km 2 (280,037 sq mi) — mostly within Botswana and Namibia, but also parts of Angola, South Africa, Zambia, and Zimbabwe.
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Satellite image of Okavango Delta, with national borders added Typical region in the Okavango Delta, with free canals and lakes, swamps and islandsThe Okavango Delta [2] (or Okavango Grassland; formerly spelled "Okovango" or "Okovanggo") in Botswana is a vast inland delta formed where the Okavango River reaches a tectonic trough at an altitude of 930–1,000 m [3] in the central part of the ...
The Okavango River (formerly spelt Okovango or Okovanggo), is a river in southwest Africa. It is known by this name in Botswana, and as Cubango in Angola, and Kavango in Namibia. [ 1 ] It is the fourth-longest river system in southern Africa, running southeastward for 1,600 km (1,000 mi).
German-language map of the Kavango–Zambezi Transfrontier Conservation Area. The Kavango–Zambezi Transfrontier Conservation Area has an area of 520,000 km 2 (200,000 sq mi). [7] Of this land, 17% is in Angola, 30% in Botswana, 14% in Namibia, 25% in Zambia, and 14% in Zimbabwe. [citation needed]
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The Okavango, Upper Zambezi, and Cuando rivers once all emptied into the lake. Its remains are seen in the Makgadikgadi salt pans , one of the largest salt pans in the world. DNA research suggests the lake region is the homeland of Homo sapiens , where humans first evolved as a distinct species about 200,000 years ago, before expanding to other ...
More than 90% of Sri Lanka's surface lies on Precambrian strata, some of it dating back 2 billion years. [6] The granulite facies rocks of the Highland Series (gneisses, sillimanite-graphite gneisses, quartzite, marbles, and some charnockites) make up most of the island and the amphibolite facies gneisses, granites, and granitic gneisses of the Vijayan Series occur in the eastern and ...