高精度航磁调查在新疆西天山地区的应用

介绍了高精度航磁调查在西天山地区的应用效果,在高精度航磁图上,磁异常信息极为丰富,不仅已知铁矿在图上反映明显,而且还新发现了50余处铁矿异常,在已经进行了查证的5处异常中,有4处见矿,分别为14号、20号、169号和374号。这4处异常的成功发现不仅带来了巨大的经济效益,也为今后利用高精度航磁调查进行找矿提供了典型的实例。根据该区高精度航磁调查实际效果,笔者认为在新疆西天山地区,乃至整个中国西部勘查程度较低的地区,进行高精度航磁测量,并进行快速的地面查证工作,是寻找铁磁性矿产行之有效的方法。

THE APPLICATION OF HIGH-PRECISION AEROMAGNETIC SURVEY IN WEST TIANSHAN AREA OF XINJIANG

This paper describes the effects of applying high-precision aeromagnetic survey in West Tianshan area. The high-precision aeromagnetic map contains very abundant magnetic anomaly information. The known iron deposits are clearly demonstrated in the map and, in addition, more than 50 iron anomalies are reflected in the map. The inspection of five anomalies led to the discovery of four ore-related anomalies, which are No.14,No.20,No.169 and No.374 anomalies. The discovery of these four ore-related anomalies has not only brought remarkable economic benefit but also provided typical examples for further application of high-precision aeromagnetic survey to the ore-prospecting work. Based on the results obtained, the authors hold that the high-precision aeromagnetic survey can be effectively used in the West Tianshan area and even in the whole low-exploration areas of western China for the purpose of prospecting for ferromagnetic ore resources.