青藏铁路沿线航磁特征及找矿远景预测  

THE AEROMAGNETIC CHARACTERISTICS AND ORE-PROSPECTING PROGNOSIS ALONG THE QINGHAI-TIBET RAILWAY

作　　者：乔春贵[1] 王德发[1] 刘伟[1] 王乃东[1] 张玄杰[1] 宋正范[1] 

机构地区：[1]中国国土资源航空物探遥感中心,北京100083

出　　处：《物探与化探》2012年第6期915-921,共7页Geophysical and Geochemical Exploration

基　　金：中国地质调查局地质调查项目(1212010918016)

摘　　要：通过对青藏铁路沿线航磁反映的大地构造背景的综合分析,对青藏铁路沿线找矿远景进行了预测。依据不同的成矿地质背景和航磁反映的构造—岩浆—热液环境、局部异常特征,结合大地构造位置,将研究区划分为7个成矿带。圈定铁、铜、铅、锌、金、银、铬等多金属找矿远景区125个,其中一级找矿远景区49个,为该地区地质调查和矿产资源评价提供了重要信息。Based on a comprehensive study of the geotectonic background reflected by the aeromagnetic data, this paper made a prediction of the ore-search prospect along the Qinghai-Tibet railway. According to geological background of mineralization, teetonic-magmatic-hydrothermal environment and characteristics of magnetic anomalies, combined with the tectonic position, the authors divided the area into 7 metallogenic behs, and delineated 125 prospective areas of iron, copper, lead, zinc, gold, silver, chromite and polymetallic resources, in which 49 belong to first grade areas.

关 键 词：青藏铁路沿线 航空磁测 大地构造 找矿远景预测 

分 类 号：P631.2[天文地球—地质矿产勘探]