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一个日本研究小组在最新一期英国《自然》杂志上报告说,他们通过模拟实验发现,地幔的上层与下层物质构成不同,更深处的下地幔是由富含硅的矿物形成。地幔位于地壳以下数十公里到约2900公里
A Japanese team reported in the latest issue of the journal Nature in the UK that they found from modeling experiments that the upper and lower mantle structures are different and that the deeper mantle is formed of silicon-rich minerals. The mantle is located tens of kilometers below the crust to about 2,900 kilometers