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Mid-ocean ridges (MORs) are quintessential sites of tectonic extension1,2,3,4, at which divergence between lithospheric plates shapes abyssal hills that cover about two-thirds of the Earth’s surface5,6. Here we show that tectonic extension at the ridge axis can be partially undone by tectoni...
843 ft in depth. On the satellite image to the left, you can see the vertical (from top to bottom) light blue line in the deep blue sea. This is the boundary where the earth's continental places move apart, constantly creating new oceanic crust....
7. TheChallenger Deepin the Mariana Trench, which is located to the West of the Philippines and north of New Guinea, is the deepest point in the Pacific Ocean with 10,920 m/ 35,827 ft. It is the lowest part of the earth crust and was formed by the collision of two tectonic plates....
The Chaijialing andesites were generated from a metasomatized mantle by slab-derived and sediment fluids. The Chaijialing dacites formed by a partial melting of thickened lower crust. Combined with previous research results, we can conclude that the Eastern PAO closed by a scissor-like movement ...
The central Pacific region lies between the boundaries of the eastern and western regions. The largest and the most geologically stable of the structural provinces of theEarth’scrust, it is characterized by expansive areas oflowrelief, lying at a general depth of about 15,000 feet (4,600 met...
Ocean - Evaporation, Condensation, Precipitation: The huge volume of water contained in the oceans (and seas), 137 × 107 cubic km (about 33 × 107 cubic miles), has been produced during Earth’s geologic history. There is little information on the early
It is widely accepted that a collision of a Mars-sized planetary body with the Earth led to the formation of the Moon (e.g., Canup and Righter2000), and that the release of kinetic energy of the collision resulted in the formation of large and deep magma oceans on the Moon and the ...
A periodic occurrence in the Arabian Sea, however, is the mass mortality of fish. This phenomenon is attributed to a subsurface layer of water of tropical origin that is poor in oxygen but rich in phosphate. Under certain circumstances this layer is brought to the surface by strong upwelling,...
Bering Sea and Strait, northernmost part of the Pacific Ocean, separating the continents of Asia and North America. To the north the Bering Sea connects with the Arctic Ocean through the Bering Strait, at the narrowest point of which the two continents a