Friday, July 29, 2011

Plateaus, mountains, canyons, feeds the world

However, the peculiarity of the Grand Canyon and devoid of vegetation, but very beautiful landscape on the work of not only the depth and lateral erosion and its stepped transverse profile. This destruction of the slopes in the canyon for millions of years involved various geological processes, especially weathering (due mainly to continuous sharp temperature fluctuations), which contributed to the vertical fracture formations of sedimentary rocks. Side temporary water, wind, and the effect of gravity generated fragments were transferred to bottom. Since the layers were gradually carved innumerable scarps, with the upper edge of the valley is increasingly retreating from the riverbed. Formation of a uniformly sloping slopes with the powerful mantle of clastic sediments that are so characteristic for the humid temperate climate of our latitude, this is not happening. Apparently, the stepped structure of the slope caused by frequent alternation of different layers and dry climate. Read the rest of this entry »

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