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Continental Drift, Sea-Floor Spreading, and Plate Tectonics ... In fact, about 70% of Earth's magnetic field (observed at the surface) is composed of a simple ... The oceanic crust is shown with "magnetic stripes" indicating the polarity of Earth's ... |
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Plate tectonics, however, claims that continents have moved up to 7000 km or more since ... plate tectonics unless the relative motions predicted among all plates are observed. ... . The ocean floor is far from having the uniform characteristics that ... . A more likely explanation of the magnetic stripes is that they are caused by ... |
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While it is certainly true that this reinterpretation does not disprove the popular ... From these observations has come the notion of a historical sequence of ... In the plate-tectonics theory, this destruction occurs at a downturn of the crust into the ... In this way the ocean floor becomes a sort of "tape recording" of the... |