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就象利用计算机辅助的 X 光照相术检查人脑一样,科学家们利用地震波绘制地球内部结构图,已验证了地球深部图象,这大大有助于解释大陆漂移、地震以及火山喷发的动力问题。地震波图象已显示出在北美西部地区下面有一个位于深处的过热带,有人认为它表明东半部和西半部最终可能被分开。三维空间制图技术似乎也表明,以前的太平洋海底现在已位于东海岸和大西洋西部的下面。这些及其他研究结果使许多专家推断,地幔(固体地壳或岩石圈与大量溶融铁构成的外
Just as computer-aided X-rays are used to examine the human brain, scientists have used seismic waves to map the Earth’s internal structure and have validated images of Earth’s depth, greatly contributing to explaining the dynamics of continental drift, earthquakes and volcanic eruptions. Seismic wave images have shown that there is a deep tropical over the western North American region, which some believe suggests that the eastern and western halves may eventually be separated. The 3D space mapping technology also seems to indicate that the former Pacific seabed is now located below the east coast and the western Atlantic. These and other findings have led many experts to conclude that the mantle (the solid crust or lithosphere with large amounts of molten iron