Earth's mantle is a layer of silicate rock between the crust and the outer core. It has a mass of 4.01 × 10 kg and thus makes up 67% of the mass of Earth. It has a thickness of 2,900 kilometers (1,800 mi) making up about 84% of Earth's volume. It is predominantly solid but, on geologic time scales, it behaves as a viscous fluid, sometimes described as having the consistency of caramel. Partia… WebJul 11, 2024 · The upper mantle, for instance, is primarily made of a mineral called olivine, which can’t store much water. But below 410 kilometers, in the transition zone, high …
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WebMay 7, 1993 · A synthesis of laboratory studies and geophysical and geological observations shows that transitions between diffusion and dislocation creep likely occur in the Earth's upper mantle. The hot and shallow upper mantle flows by dislocation creep, whereas cold and shallow or deep upper mantle may flow by diffusion creep. WebIf the Chikyu's drill rig breaks through a transitional boundary called the Moho, it would reach the Earth's mantle, the mysterious 1,740-mile (2,900-kilometer) thick layer between the crust and the planet's hot, molten core … philhealth open branches
What color is the mantle? - Answers
WebThe upper mantle is the region 40 - 410 km depth, (T = 930 - 1785 K, P = 1.122 - 13.4 GPa) while the transition zone is the region 410 - 670 km, (T = 1785 - 1950 K, P = 13.4 - 23.83 GPa). In general, the deeper in the earth, the greater the density of the minerals. WebDec 15, 2024 · Earth's lithosphere, which includes the crust (both continental and oceanic) and the upper mantle, is divided into huge plates that are constantly moving. For example, the North American plate … WebJul 11, 2024 · Earth’s mantle is the thick layer of silicate rock between Earth’s crust and its molten core, making up about 84% of our planet’s volume. The mantle is predominantly solid but, on geologic time scales, it behaves as a viscous fluid — as difficult to stir and mix as a pot of caramel. philhealth online update of employer