海洋岩石圈磁结构及动力学

发布时间：2018-06-06 16:51

本文选题：洋壳 + 磁异常条带　；参考：《热带海洋学报》2016年01期

【摘要】：古地磁学在20世纪极大地促进了板块构造理论的诞生和全球大洋钻探计划的发展。对洋壳的磁性研究是这场地学革命的突破点之一。从磁学性质上,洋壳磁性包括洋壳中所含磁性矿物本身的性质以及这些矿物携带的古地磁信息。从介质性质上,洋壳包含下部岩石层(包括枕状玄武岩、辉长岩和橄榄岩)和上部沉积物。文章首先总结洋壳的磁性结构,并对其代表的动力学意义进行深入探讨,主要包括应用磁异常条带进行年代学、地球深部动力学、大洋洋壳的板块运动学以及热点演化等研究,详细总结了国内相关研究中南海洋壳的磁性研究进展。最后对研究中遇到的相关难点和关键科学问题进行了回顾与展望。
[Abstract]:Paleomagnetism greatly promoted the birth of plate tectonics theory and the development of global ocean drilling program in the 20th century. The magnetic study of oceanic crust is one of the breakthrough points of the site science revolution. In terms of magnetic properties, oceanic crust magnetism includes the properties of the magnetic minerals contained in the oceanic crust and the paleomagnetic information carried by these minerals. The oceanic crust consists of lower lithosphere (including pillow basalt, gabbro and peridotite) and upper sediments. In this paper, the magnetic structure of oceanic crust is summarized, and the dynamic significance of its representative is discussed in depth, including geochronology, deep earth dynamics, plate kinematics and hot spot evolution of oceanic crust. The research progress of magnetic properties of the central-south ocean shell is summarized in detail. Finally, the related difficulties and key scientific problems encountered in the research are reviewed and prospected.
【作者单位】：中国科学院地质与地球物理研究所特提斯研究中心;中国科学院大学;
【基金】：海岸带地质调查工程-大陆架科学钻探项目(GZH201100202) 国家海洋局“全球变化与海气相互作用”专项(GASI-GEOGE-03) 国家自然科学基金(41430962,41374073)~~
【分类号】：P736

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