关于地核和核幔边界区物质的成分及运动特征的研究进展

THE PROGRESSES IN COMPOSITION AND MOVEMENT OF MATERIALS IN CORE AND CORE-MANTLE BOUNDARY REGION

近年来关于地核和核幔边界区的研究有了较大进展，特别是高压矿物物理学和高压岩石学提供了大量有关的实验依据。本文对核幔边界区Ｄ＂层物质的运动状态、外核中轻元素成分的实验研究结果、内核地震波各向异性的物质解释及有关地磁场成因的新认识等方面的研究成果进行简要介绍和评述。

Recently few years some new developments of studies on composition and movement of materials in core and core-mantle boundary D' region have been obtained.In the paper, the shape of D' region and the probably chemical reaction in it, the candidates of light elements in outer core based on the meteorities and the experimental results of high-pressure mineralogy physics, the anisotropy of inner core and it's origin have been Presented and reviewed.