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一、何谓岩石圈根据现代地球科学知识,我们知道,在地球软流圈柔软而塑性的带上,覆盖着一个坚硬的外壳,称为岩石圈。关于岩石圈的定义并不统一,主要有四种说法:1.根据地震波的测量,存在着一个不一定是全球规模的地震低速带,它在大洋下深度不到45公里,大陆地盾下约为150公里;2.根据大地电磁测深,地幔内存在一个高导带,与上述地震低速带的深度大体一
First, what is the lithosphere According to modern earth science knowledge, we know that in the earth soft asthenospheric plastic belt, covered with a hard shell, called the lithosphere. The definition of the lithosphere is not uniform, there are four main statements: 1. According to the measurement of seismic waves, there is not necessarily a global scale low-speed seismic zone, which is less than 45 kilometers deep under the ocean, under the mainland shield about Is 150 km; 2. According to the geomagnetic sounding, there is a high conduction band in the mantle, which is roughly the same as the depth of the above low velocity belt