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Satellite image of the Tibetan Plateau between the Himalayan mountains to the south and the Taklamakan Desert to the north. In geology and physical geography, a plateau (/ p l ə ˈ t oʊ, p l æ ˈ t oʊ, ˈ p l æ t oʊ /; French:; pl.: plateaus or plateaux), [1] [2] also called a high plain or a tableland, is an area of a highland consisting of flat terrain that is raised sharply above the ...
The Kerguelen Plateau is a large igneous province formed by a volcanic hotspot; however, it was associated with the breakup of Gondwana and was for a time above water, so it is considered a microcontinent, though not a continental fragment.
Other oceanic plateaus, however, are made of rifted continental crust, for example the Falkland Plateau, Lord Howe Rise, and parts of Kerguelen, Seychelles, and Arctic ridges. [3] Plateaus formed by large igneous provinces were formed by the equivalent of continental flood basalts such as the Deccan Traps in India and the Snake River Plain in ...
Continental shelf – Coastal and oceanic landform; Cryoplanation terrace – Formation of plains, terraces and pediments in periglacial environments; Dissected plateau – Plateaus area that has been severely eroded so that the relief is sharp; Etchplain – Plain where the bedrock has been subject to considerable subsurface weathering
Scientists discovered "deep mantle waves" causing interiors of continents to rise. Now we understand mantle processes and impacts on biodiversity and climate.
Platform – A continental area covered by relatively flat or gently tilted, mainly sedimentary strata; Shield – Large stable area of exposed Precambrian crystalline rock; Earth's crust – Earth's outer shell of rock Continental crust – Layer of rock that forms the continents and continental shelves
[2] [3] [4] That original definition included continental flood basalts, oceanic plateaus, large dike swarms (the eroded roots of a volcanic province), and volcanic rifted margins. Mafic basalt sea floors and other geological products of 'normal' plate tectonics were not included in the definition. [5]
Principal LIPs in the ocean basins include Oceanic Volcanic Plateaus (OPs) and Volcanic Passive Continental Margins. Oceanic flood basalts are LIPs distinguished from oceanic plateaus by some investigators because they do not form morphologic plateaus, being neither flat-topped nor elevated more than 200 m above the seafloor. Examples include ...