综合物探在新疆恰勒什海地区的应用

The Application of Integrated Geophysical Investigation Methods in the Charles Sea District of Xinjiang

介绍综合物探方法在布尔津-吉木乃县寻找隐伏矿体的应用。开展地面高精度磁测、激电中梯剖面和激电测深等物探工作方法,在地质勘查基础上,利用大面积地面高精度磁测扫面了解区内主要地质体磁性特征、断裂构造和岩性分界等;利用激电中梯剖面查证磁测异常和地表矿化的较好部位;利用激电测深法研究异常区控矿构造和异常体在深部的延伸情况,指导槽探、钻探等工程工作,达到寻找矿体目的。勘查成果表明,高精度磁测与激电方法的结合利用,能快速有效地圈定多金属矿化异常体,为同类地质条件地区提供参考。

In this paper,integrated geophysical investigation methods are applied to detect the hidden ore bodies in Burqin-Jimuna County.We carried out different kinds of imaging techniques such as Ground high-precision magnetic survey and Intermediate gradient survey and Induced polarization(IP).Based on the the results of geological survey,we implemented high-precision magnetic method to identify the electrical and magnetic chargeability and image the fault structures and lithological boundaries of the main geological bodies in large scale.The Intermediate gradient survey was utilized to recognize the magnetic anomaly and the good part of mineralization development on the surface.The Induced polarization(IP)method was also applied to identify the extension of the ore-control structure and the anomaly in the deep earth.Our work can provide a guidance for many engineering problems such as the trenching and drilling and thus a better solution for mineral detection.The results has demonstrated the effectiveness of the combination of high precision magnetic survey and Induced polarization(IP),which can delineate polymetallic mineralized abnormaly and provide a good reference for other similar geological problems.