Plate tectonics (from the Late Latin tectonicus, from the Greek: τεκτονικός "pertaining to building") is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of the Earth's lithosphere, since tectonic processes began on Earth between 3 and 3.5 billion years ago.The model builds on the concept of continental ...
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global-scale climatic impacts. Those impacts can be direct or indirect, and can include horizontal displacements, vertical dis-placements, or both. Perhaps the most fundamental, direct link between plate tec-tonics and climate comes from the slowly evolving global dis-tribution of continental blocks and fragments (Figure P64).
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When coal or gangue of the same size impact the metal plate at the same speed, the displacement of the gangue contact point is larger than that of coal and the contact time is slightly longer than coal. Fig. 4 is that the normal velocity-time curve of coal, the higher the impact velocity, the greater the
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Through the simulation study of the impact of spherical coal on different thickness metal plates, the following conclusions can be drawn. (1) With the increase of plate thickness, when spherical coal impacting the metal plates with different thickness, the total deformation of the metal plate decreases effectively, and the changes of maximum
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