华北中部岩石圈磁场变化与岩石圈结构间的关系

对2016-2019年华北中部地区(34.7°-41.1°N,110.3°-119.7°E)流动地磁矢量观测数据进行处理,得到连续3期岩石圈磁场年变化数据,并对岩石圈磁场空间分布形态进行分析.研究发现,磁异常分布与岩石圈结构之间有一定相关性,在太行山隆起以西、临清坳陷、鲁西断隆和鲁西断隆以东等主要结构单元表现出不同程度...

The relationship between lithosphere magnetic field variation and lithosphere structure in the central region of North China

This paper processed three issues of annual variation data of lithospheric magnetic field from 2016 to 2019 in the central region of North China(34.7°-41.1°N, 110.3°-119.7°E) and analyzed the spatial distribution of the lithosphere magnetic field. The results showed that there is a certain correlation between magnetic anomaly distribution and lithosphere structure. Anomaly characteristics show some differences between main structural units but are generally consistent within the units, especially for the horizontal vector H and E-W component ΔY of the lithosphere magnetic field. The spatial distribution of the horizontal vector showed that the high-energy areas are mainly distributed in the West of Taihang uplift and around the West Shandong fault uplift and its East. The amplitude distribution of componentΔY of the Wenshui-Rizhao section corresponds well with the structural zones. According to the statistics of the mean value and extreme value of the abnormal amplitude of ΔX, ΔY, and ΔZ elements in the main structural units, the variation amplitude of lithosphere magnetic field in the West of Taihang uplift in recent years is the most obvious, the next is the West Shandong fault uplift and its East, and the variation of lithosphere magnetic field around the Linqing fault zone is the most stable.