How does ocean chain start mining
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In fact, the bottom of the trench is the junction of the continental and oceanic crust, but they do not live in harmony here, just like two "Hercules" colliding with each other. Because of the high density and low position of the oceanic crust, and the heavy sea water on its back, it can't lift its head, so it has to dive down to the lower part of the continental crust and arch up the land to make the continental crust rise and bend into an island. This is why the trench is mostly associated with island arc. When the island arc is pushed by the ocean bottom, it will keep rising, and the slope on the continental side will inevitably become steep, which naturally becomes what it is now
Genesis: the oceanic plate subcted under the continental plate and separated from the continent
coastal mountains are formed by the subction of oceanic plate under continental plate and the uplift of continental plate. ok
ring the subction of the ocean floor plate, the friction between the ocean floor plate and the continental plate increases the temperature and generates magma, which is ejected and cooled by sea water, These island arcs parallel to the trench are formed.
island arcs are divided into outer island arc and inner island arc. The outer island arc is close to the ocean side, and there is no volcanic seismic zone. The inner island arc is close to the land side, which is the contact zone between the Ocean plate and the continental plate, where volcanoes and earthquakes are concentrated.
island arc and strong volcanic activity, The long curved ocean island chain associated with the process of seismicity and orogeny
from the morphological point of view, the syncline is generally the downward bending of rock strata. Therefore, from the original morphology of the terrain, the syncline becomes a valley, which can store water. However, e to the compression towards the chute, the material is solid and not easy to be eroded, and it may become a mountain after long-term erosion, The corresponding anticline will be eroded easily by rock stretching and form valley
HS is element 108, which is an artificial radioactive element
In addition, HS is the abbreviation of coding coordination system in customs affairsin the game, HS is the of Mount Hyjal in world of Warcraft and the abbreviation of Huasheng Temple sect in the dream journey to the West