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在西起贝加尔湖、东到太平洋这一地区的地电剖面上,有两层延伸很长的导电层。上层赋存于地壳下部及地幔上部,可能具有热液的性质;下层使上地幔复杂化,显然,可以认为是软流层。根据后者的埋深,该区域可分为三带。在西带和东带,地幔导电层顶部的埋深为40～80 km;在中带深度达160 km。西带与贝加尔裂谷带相符合,东带与亚洲—太平洋活动边缘带相符合,而中带则与外兴安岭及蒙古—鄂霍次克海褶皱带的前寒武纪和新生代构造一致。认为,西带与东带中电性软流层相对地埋深不大是与现代及晚新生代构造运动有关,而这些构造运动,正如大家所知,反映了东带与西带的特征;中带电性软流层埋藏相对地深,与该区内无上述构造活动的任何明显标志有关。
In the geoelectric section of Lake Baikal, east of the Pacific Ocean to the west, there are two layers of very long conductive layers. The upper layer occurs in the lower part of the crust and the upper part of the mantle, which may be hydrothermal in nature. The lower layer complicates the upper mantle and apparently it can be considered as the asthenosphere. According to the depth of the latter, the area can be divided into three zones. In the western and eastern belts, the depth of the top of the mantle conductive layer is 40 ~ 80 km; the depth of the middle reaches is 160 km. The Western Belt coincides with the Baikal rift zone, the East Belt coincides with the marginal zone of the Asia-Pacific Ocean, and the Middle Belt coincides with the Precambrian and Cenozoic structures of the outer Xinganling and Mongolia-Okhotsk fold belt. It is believed that the relatively low buried depth of the Western and Eastern China asthenosphere is related to the modern and Late Cenozoic tectonic movement, and these tectonic movements, as we all know, reflect the characteristics of the eastern and western zones. The charged asthenosphere is buried relatively deeply and is related to any obvious sign of the above tectonic activity in the area.