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阐明大陆和大洋范围内地壳的构造是否相似或者是否有区别,是近代地质学的基本任务之一。作者引用了一些证明大陆和大洋的构造有显著区别的资料。属于这类资料的,首先是能表明地壳大洋部分的组成物质比大陆部分的组成物质具有较大密度的重力观测资料。对地震资料作了详细的分析,指出莫霍罗维赤奇面(Поверхностъмохоровичича)对了解地壳的构造有重大意义。在大陆范围内,地震波分隔面(поверхно-стъразделасейсмическихволн)分布于深度约30公里处,在大洋范围内则分布于深度约10公里处。在许多大洋盆地中都获得这样的观测结果,因此,证明这些大洋盆地是相似的。
It is one of the basic tasks of modern geology to clarify whether the crustal structures in the continental and oceans are similar or different. The author cites a number of sources that show a striking difference between the continents and the oceans. Belong to this kind of information, the first is to show that the composition of the ocean crust portion of the material than the mainland part of the composition of a larger density of gravity observations. The seismic data are analyzed in detail, pointing out that the Подерхност ъмохоровичича is of great significance for understanding the crustal structure. Seismic wave splitting surfaces (поверхно-стъразделасейсмическихволн) are located at a depth of about 30 km in the continental area and at a depth of about 10 km in the ocean. Such observations have been obtained in many oceanic basins and, as a result, proved to be similar in these oceanic basins.