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地幔是位于地核和地壳之间的部分。地壳的厚度在不同的地方是不一样的 ,从洋底的数千米至大陆上某些造山区域的６０ｋｍ。地幔扩展到２９００ｋｍ的深处 ,地核的半径是３４７０ｋｍ。在科学和科普文章中常常讨论地球深部结构和地球动力学特征。有关地幔壳层结构的结论主要建立?
The mantle is located between the earth’s core and the crust. The thickness of the earth’s crust varies from place to place, from several kilometers of the ocean floor to 60 km in some orogenic areas on the mainland. The mantle extends to a depth of 2,900 km and the radius of the core is 3470 km. The Earth’s deep structure and geodynamics are often discussed in science and popular science articles. The conclusion about the mantle structure is mainly established?