Karoo an immense volume of rocks which was formed, geologically speaking, in a short period of time. Although almost the whole of the Great Karoo is situated on Karoo Supergroup rocks, the geological Karoo rocks extend over a very much larger area, both within South Africa and Lesotho, but also beyond its borders and onto other continents that formed part of Gondwana. The Karoo Supergroup was formed in vast inland basin starting 320 million years ago, at a time when the part of Gondwana which would eventually become Africa lay over the South Pole. Icebergs that had calved off the glaciers
Gulf of Oman desert and semi-desert Gulf of Oman desert and semi-desert The Gulf of Oman desert and semi-desert is a coastal ecoregion on the Persian Gulf and the Gulf of Oman in Oman and the United Arab Emirates at the northeastern tip of the Arabian Peninsula. The climate is hot and dry; the ecoregion contains a mixture of habitats including mangrove swamps, lagoons and mudflats on the coast, and gravelly plains and savanna with thorny acacia trees inland. The mangrove areas are dominated by "Avicennia marina" and the savanna by "Prosopis cineraria" and "Vachellia tortilis". Masirah Island is an important breeding area for the loggerhead