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“水”在地幔的矿物中主要以晶格缺陷中的结构水形式存在,尽管其含量可能只有“10-6”的量级,但是这些微量的结构水会强烈的影响深部地幔矿物与岩石的化学物理性质,如矿物结构、岩石应变强度、部分熔融温度等,进而影响地幔的动力学性质和地球物理特征。大洋板块俯冲是“水”进入深部地幔的重要途径,各种高压、超高压含水相矿物是俯冲过程中“水”进入地幔的重要载体。因此,合成与研究超高压含水相硅酸盐矿物及其相变过程一直是实验岩石学的热点。
“Water ” exists predominantly in the mantle minerals as structural water in lattice defects, and although these levels may be on the order of “10-6”, these trace amounts of structural water can strongly affect deep mantle The chemical and physical properties of minerals and rocks, such as mineral structure, rock strain strength, partial melting temperature and so on, further affect the mantle dynamic properties and geophysical characteristics. The subduction of the oceanic plate is an important way for water to enter the deep mantle. All kinds of high-pressure and ultrahigh-pressure water-phase minerals are important carriers of “water” into the mantle in the subduction process. Therefore, synthesizing and studying the UHP aquifer silicate minerals and their phase change process have always been the focus of experimental petrology.