地面高精度磁法在新疆塔什库尔干县某勘查区的应用
投稿时间:2014-07-23  修订日期:2014-11-13  点此下载全文
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作者单位E-mail
李宏伟 成都理工大学沉积地质研究院 lhwsqyx@126.com 
中文摘要:测区位于新疆喀什塔什库尔干自治县内,塔什库尔干陆块西部,成矿地质条件优越。为了对工区内矿产资源前景做快速评价和圈定找矿靶区,我们开展了大比例尺地面高精度磁法面积性测量工作。通过对磁测数据定性处理和分析,我们圈定出有找矿意义的正磁异常带两处;通过对有利区域开展剖面测量并进行切线法和二度半交互式反演计算,初步估计了下伏异常体空间展布。测量和研究成果指导了钻孔和探槽的施工,验证了物探推论,为矿产勘探节省了大量时间和资金,同时为工区深入开展地质找矿工作提供了重要依据。
中文关键词:地面高精度磁法  切线法反演  二度半交互式反演  塔什库尔干县
 
Application of the Ground High Precision Magnetic Survey in a Exploration Area of the Taxkorgan,Xinjiang
Abstract:The survey area is located in Taxkorgan autonomous county,the west of Taxkorgan continental block. The metallogenic geological condition is superior.In order to evaluate the prospect of mineral resources in the work area quickly and delined prospecting target area,we conducted a work of large scale ground high precision magnetic survey. Based on the qualitative analysis and procession of the magnetic survey data,we delineated two positive magnetic anomalies that is fill with prospecting significance.Based on the profile measurement and the inversion of tangent method and interactive method by 2.5 D in favorable areas,we finded out the distribution of the underlying abnormal body preliminary.We have used the measure informations to guide the construction of drilling and trenching, the measurement results provided us a favorable basis to carry out the further work of geology.
keywords:the ground high precision magnetic survey  tangent method inversion  interactive inversion method by 2.5D  Taxkorgan
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