Study on gravity and magnetic field characteristics and tectonic framework in gobi desert in eastern Tianshan Mountains
Study on gravity and magnetic field characteristics and tectonic framework in gobi desert in eastern Tianshan Mountains
复制标题
DOI：
--
复制
发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Zeng Ka
中科院分区：
文献类型：
--
作者：
Zeng Ka
根据重磁异常资料及其处理结果(倾斜导数和欧拉反褶积)，结合前人的研究成果，重新解释了东天山戈壁荒漠区的断裂构造和岩体，详细分析了东天山的构造格架。结果表明，东天山主构造线方向为EW向，具有南北分带的特征，重力强烈梯度带与重磁异常图上的一级断裂相对应。通过倾斜导数和欧拉反褶积处理，增强了重磁异常的微弱信息，识别出一些新的断裂构造和岩体。
Based on the data of gravity and aeromagnetic anomalies and their processing results( Tilt derivative and Euler deconvolution),the authors re-explained the fault structures and rock mass in the Gobi desert area in eastern Tianshan Mountains and analyzed the structure framework of eastern Tianshan Mountains in details in combination with rock density and magnetic characteristics as well as the previous research results. It was concluded that the direction of the main tectonic line for eastern Tianshan Mountains was EW strike and characteristic of north south zoning; the intensive gravity gradient belt was correspondent to level one fracture on the map of gravity and aeromagnetic anomalies. Through the process of Tilt derivative and Euler deconvolution,the weak information of gravity and aeromagnetic anomalies were intensified and some new fracture structures and rock mass were identified.