铁矿床深部矿体定位预测的一种新途径--以西藏恰功铁矿为例  

A New Defining Method of Deep Concealed Ore Bodies,a Case Study at the Qiagong Iron Deposit in Tibet

作　　者：李志华 贾文 张玲玲 刘兴平[2] 范云飞 王超勇 

机构地区：[1]内蒙古自治区矿产实验研究所,呼和浩特010031 [2]湖北省鄂东北地质大队,孝感432100

出　　处：《地质与勘探》2009年第2期90-97,共8页Geology and Exploration

摘　　要：恰功铁矿是近几年新发现的矿山,矿体的形态、大小、位置、产状、边界等几何特征还没有清楚的认识,为了弄清这些问题,文章首先通过小波多尺度分析方法将恰功铁矿磁异常资料进行了位场信号分离,然后应用欧拉反褶积方法反演了异常与其场源深度的对应定量关系,最后把位场分离后的异常场源深度叠加起来,就可以对矿山深部找矿提供一种全新的思路。The Qiagong Iron deposit is a newly discovered deposit, but geometric characteristics of its ore body such as the shape, size, position, occurrence anti boundary, have not been fully tested. Based on a wavelet and multi-scale analysis and Euler deconvolution method, the vertical signal of potential fieht is separated and the sources depth is estimated. The two methods mentioned above are jointly used to detect the magnetic source depths, which could play an important role in locating the deep - buried orebodies.

关 键 词：深部矿体定位预测 地面高精度磁法测量 离散小波变换 欧拉反褶积方法 恰功铁矿 

分 类 号：P618.31[天文地球—矿床学] P631.2[天文地球—地质学]