首页|高精度磁法测量在隐伏磁铁矿勘查中的应用——以冀东迁安曹庄子地区为例

高精度磁法测量在隐伏磁铁矿勘查中的应用——以冀东迁安曹庄子地区为例

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  • 国家科技期刊平台
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  • NSTL
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冀东迁安地区铁矿成矿带是我国重要的沉积变质型铁矿产地之一，其矿石自然类型主要为磁铁型，随着开采与开发程度的提高，目前迁安地区已发现的大部分铁矿床已面临资源枯竭的局面，因此在区内寻找隐伏铁矿具有迫切需求。通过在冀东迁安曹庄子地区开展地面高精度磁法测量工作，查明其磁异常特征，研究结果表明:研究区磁异常主要由隐伏磁性体引起，经钻探验证，在深部发现了厚大铁矿体，磁异常分布与钻探所见的隐伏铁矿体对应较好，说明高精度磁法测量方法在冀东变质岩地区寻找深部隐伏铁矿体具有良好的找矿效果。研究可为迁安地区的铁矿找矿工作提供参考。
Application of high-precision magnetic measurement in the exploration of hidden magnetite deposits:A case study of Caozhuangzi area in Qian'an of the eastern Hebei Province
The iron ore mineralization belt in Qian'an area of the eastern Hebei Province is one of the important sedimentary metamorphic iron ore producing areas in China,and the natural type of ore is mainly magnetic.Most of the iron ore deposits discovered in Qian'an area are in resource depletion state,with the improvement of mining and development degree.So there is an urgent need to search for hidden iron ore in this area.The magnetic anoma-ly characteristics of the study area were identified after high-precision ground magnetic measurements in Caozhuan-gzi area of Qian'an in the eastern Hebei Province.The research results indicate that the magnetic anomalies in the study area are mainly caused by concealed magnetic bodies.Thick and large iron ore bodies were discovered in the deep part through drilling verification,and the magnetic anomalies corresponded well with the hidden iron ore bodies observed during the drilling process,indicating that high-precision magnetic measurement has a good pros-pecting effect for the deep hidden iron ore bodies in the metamorphic rock area of the eastern Hebei Province.This study could provide some references for iron ore exploration in Qian'an area.

high precision magnetic measurementhidden magnetitedeep mineral explorationdrilling verifica-tionQian'an of the eastern Hebei Province

吕水、李延康、许曼、邢运涛、刘海龙、南少伟

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河北省地质矿产勘查开发局第五地质大队(河北省海洋地质环境调查中心),河北 唐山 063000

高精度磁法测量 隐伏磁铁矿 深部找矿 钻孔验证 冀东迁安地区

河北省地质矿产勘查开发局科研项目&&

13000022P00329410109F454-0502-JBN-YXUZ

2024

10.19388/j.zgdzdc.2024.147

中国地质调查
中国地质图书馆（中国地质调查局地学文献中心）

中国地质调查

CSTPCD
ISSN：2095-8706
年,卷(期)：2024.11(4)