重力和可控源音频大地电磁法在新疆彩霞山铅锌矿区的应用  

Application of gravity and CSAMT method for lead-zinc mining in Caixia Mountain,Xinjiang

作　　者：张征[1] 

机构地区：[1]新疆地质矿产勘查开发局第一地质大队,昌吉831100

出　　处：《矿产勘查》2012年第3期389-396,共8页Mineral Exploration

基　　金：新疆维吾尔自治区深部找矿勘查(编号:XJSB2009-3)资助

摘　　要：通过对彩霞山重力场平面特征的研究,确定了控矿大理岩的分布和范围,间接探索了与控矿大理岩相关的铅锌矿体分布区段。通过对重力剖面的研究,发现铅锌矿体赋存于高密度板体上或紧邻一侧。通过可控源音频大地电磁法(CSAMT)的研究,发现"半椭圆状"、"椭圆状"高阻异常反映了控矿大理岩或蚀变带相关的控矿体。上述特征得到浅部钻探的验证,在找矿中发挥了积极的作用。又应用此模式进行深部矿体的分析预测,并得到了深部钻探验证。By studying on the characteristics of gravity in Caixia Mountain, the author discovered the distribution and extent of the ore marble, and indirectly explor the distribution of lead and zinc related to ore marble. Through the study on gravity profiles, be found Lead - zinc occurrence on high - density body or near the side. Through the study on CSAMT , he also found that ＂half oval - shaped＂ , ＂oval - shaped＂ high resistance anomaly reflects the ore marbleor alteration associated with ore. These characteristics was verified by shallow drilling, and played a positive role in prospecting. And applying this model, people can predict the deep ore body, and a drilling has been verified.

关 键 词：剩余重力异常 可控源音频大地电磁法(CSAMT) 新疆彩霞山 铅锌矿 

分 类 号：P618.42[天文地球—矿床学] P618.43[天文地球—地质学]