第九章板块构造理论（The ninth chapter, plate tectonics theory）.docVIP

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第九章板块构造理论（The ninth chapter, plate tectonics theory）.doc

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第九章板块构造理论（The ninth chapter, plate tectonics theory）

第九章板块构造理论（The ninth chapter, plate tectonics theory） The ninth chapter, plate tectonics theory Geology has been a science of the system for more than 200 years. For a long time, the analysis of the crustal movement, the tectonic interpretation has been fixed on the traditional thought occupies the dominant position (i.e. the sea there is no fundamental change, but the size of it, the crustal movement in the vertical direction mainly). The theory of activity began to emerge in the 20s of this century, and it was not until 60s that the system theory was accepted by the majority. Therefore, the theory of activity, a series of theories of activity, is called new earth view. From the viewpoint of activity theory, horizontal crustal movement is dominant, land sea is not absolutely fixed, land base position has changed. Its theories include continental drift, submarine spreading and plate tectonics. These theories can be thought of as the basic theory of the same ideological view in several stages of development. From the continental drift into the sea expansion to plate tectonics, which has a relationship of inheritance and development of the former, it should be said that continental drift is a burgeoning new outlook on the earth, the expansion is its stage of development, the theory of plate tectonics represents a relatively mature stage, this theory has been accepted but not good geology. The United States, also need to further develop and perfect. Section 1. continental drift First, the theory of continental drift: On the basis of a good combination of topography on both sides of the the Atlantic Strait, it was noted that this splicing relationship can be traced back to a long time ago. In 1620, Bacon proposed the possibility of a boundary between Africa and South America (not explained). In 1858, Ssder (Snyder) in the book earth and its evolution pointed out that Europe and North America can be joined together, and the coal measures in both sides of the Taiwan Strai