下地幔流变学性质的高温高压实验研究进展  

Recent progresses of high-pressure and high-temperature experimental researches on rheological properties of the lower mantle

作　　者：徐放 费宏展 张宝华 XU Fang;FEI Hong-zhan;ZHANG Bao-hua(School of Earth Sciences,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]浙江大学地球科学学院,杭州310058

出　　处：《矿物岩石地球化学通报》2025年第1期10-20,I0002,共12页Bulletin of Mineralogy, Petrology and Geochemistry

基　　金：国家自然科学基金资助项目(42373035,42325203,W2411027)。

摘　　要：下地幔是地球内部体积最大的圈层,它的流变学性质对深刻理解地球内部物质组成与非均一性、各种动力学过程、深部与浅部相互作用耦合等具有重要的意义。通过高温高压实验研究下地幔物质在差应力作用下的变形和流动是认识下地幔流变学性质的重要手段。近年来,伴随着高温高压实验技术,尤其是流变学实验技术的发展,对下地幔诸多重要的科学问题有了进一步的认识。本文简要介绍了流变学性质研究的主要实验方法和仪器设备,总结了近年来下地幔的主要流变学问题的高温高压实验研究进展及依然存在的问题,并展望了下地幔流变学性质的未来研究方向。The lower mantle is the most voluminous layer in the Earth’s interior.The rheological properties of the lower mantle minerals are of great significance for understanding the compositional heterogeneities and dynamic processes of the Earth’s interior,and the interaction coupling of the deep and shallow geological processes in the Earth’s interior.Studying the deformation and flowing behavior of lower mantle materials under differential stress through high-pressure and high-temperature experiments is an important means for understanding rheological properties of the lower mantle.Due to the developments of experimental techniques,especially the deformation apparatus for studying rheological properties recently,many scientific issues regarding to the lower mantle have been further understood.Here,we have briefly introduced the main experimental methods and apparatus for studying rheological properties,summarized the recent research progresses and some still existed key questions about lower mantle rheology based on high-pressure and high-temperature experiments,and finally made perspectives for future investigations on rheological properties of the lower mantle.

关 键 词：下地幔 实验流变学 研究进展 高温高压 

分 类 号：P589[天文地球—岩石学]