东天山白石泉矿区地球物理多方法联合探查与隐伏铜镍矿定位预测  

Exploration by combined geophysical methods and location prediction of buried Cu-Ni deposits in the Baishiquan area,eastern Tianshan,Xinjiang

作　　者：吴华[1] 徐兴旺[2] 莫新华[3] 梁光河[2] 程松林[3] 秦克章[2] 李军[3] 张宝林[2] 王杰[2] 肖骑彬[2] 韩照举[3] 金长明[4] 李金祥[2] 

机构地区：[1]中国地质大学地球科学与资源学院,北京100083 [2]中国科学院地质与地球物理研究所中国科学院矿产资源研究重点实验室,北京100029 [3]新疆维吾尔自治区地质矿产勘查开发局第六地质大队,新疆哈密839000 [4]新疆维吾尔自治区地质矿产勘查开发局物化探大队,新疆昌吉830000

出　　处：《中国地质》2006年第3期672-681,共10页Geology in China

基　　金：中科院知识创新工程重要方向项目(KZCX3-SW-137);国家305项目(2001BA609A-07-07);国家地调项目(新疆哈密白石泉铜镍矿预查)

摘　　要：隐伏矿床(体)空间位置、形态和矿化强度的预测是经济地质学的前沿课题和热点问题。在新疆东天山白石泉基性-超基性岩型隐伏铜镍矿预测与找矿研究过程,尝试性引入高分辨率的浅层地震与大地电磁测深(MT)方法,并结合常规的高精度重力、磁法和激电,开展隐伏含矿岩体(铜镍矿)空间分布位置、形态和矿化强度的联合探查与定位预测。基本查明了白石泉杂岩体的深部产状与形态结构,发现了5个隐伏低阻异常区。对其中两个低阻异常区的钻探结果表明预测结果是准确的,在异常YC-II位置发现了厚28m的铜镍矿体。The prediction of the spatial location, shape and mineralization degree of buried ore deposits （orebodies） is a frontier subject and a hot topic of economic geology. An attempt has been made to use the high-resolution shallow-level seismic and magnetotelluric methods, combined with the conventional high-precision gravity, magnetic and induced polarization methods to detect and predict the spatial location, shape and mineralization degree of buried ore-bearing mafic-ultramafic bodies （Cu-Ni deposits） during the prediction and search of the Baishiquan basic-ultrabasic type buried Cu-Ni deposit, eastern Tianshan, Xinjiang. As a result, the deep attitude and shape of the Baishiquan complex are in the main ascertained and five buried low-resistivity anomaly areas were found. Drilling of two of the five anomalies reveals that the results of the prediction by the combined geophysical methods are accuraite and effective and a 28 m thick Cu-Ni orebody is found at the location of anomaly YC-Ⅱ.

关 键 词：隐伏铜镍矿 定位预测 地球物理多方法联合探查 白石泉 东天山 

分 类 号：P618.41[天文地球—矿床学] P618.63[天文地球—地质学]