利用高精度重力探查张堰–金山卫基底结构特征与隐伏断裂分布  

High-Precision Gravity Is Used to Probe the Structural Characteristics of Zhangyan-Jinshanwei Floor and the Distribution of Buried Faults

作　　者：马森 王浩文 许少帅 孙鹏飞 

机构地区：[1]河北工程大学地球科学和工程学院,河北 邯郸

出　　处：《地球科学前沿（汉斯）》2021年第8期1024-1032,共9页Advances in Geosciences

摘　　要：上海是中国最大的经济中心城市,建筑物和生命财产的安全是经济有序发展的一个重要方面,因此查明上海市辖区基岩面以上范围内隐伏活动断裂的空间展布特征是必要的。本文以上海市张堰–金山卫地区为例,利用改进后的帕克法,增加了约束因子来减少干扰造成的突变,使反演出的基岩面深度和走向更精准,利用欧拉反褶积、水平和垂直导数探查基岩面以上的活动断裂位置和走向,同时结合地质资料验证断裂位置、基岩面深度的有效性,为以后的上海市隐伏活动断裂勘探调查使用高精度重力勘探提供支持依据。Shanghai is the largest economic center city in China, and the safety of buildings, life and property is an important aspect of orderly economic development. Therefore, it is necessary to find out the spatial distribution characteristics of buried active faults in the area above the bedrock surface of Shanghai. Zhangyan-Jinshanwei area as an example, this paper improved Parker-Oldenburg’s algorithm, increasing the constraint factors to reduce the interference caused by the mutation, make the inversion of the bedrock surface’s depth and toward more accurate, use Euler deconvolution, horizontal derivative and vertical derivative to explore the position and toward of active faults above the bedrock surface, combined with the geological data, the inversion results are verified to be effective. It provides a support basis for the future investigation of buried active faults in Shanghai using high-precision gravity.

关 键 词：隐伏活动断裂 高精度重力勘探 帕克法 基岩面 

分 类 号：G63[文化科学—教育学]