冀北大乌苏南沟铁矿床太赫兹时域光谱特征

doi:10.3799/dqkx.2026.167

冀北大乌苏南沟铁矿床太赫兹时域光谱特征

doi: 10.3799/dqkx.2026.167

1. 地质过程与成矿预测全国重点实验室, 深时数字地球前沿科学中心, 中国地质大学(北京）, 北京 100083;
2. 河北省地质矿产勘查开发局第四地质大队(河北省水源涵养研究中心）, 河北承德 067000;
3. 北京大学造山带与地壳演化教育部重点实验室, 北京 100871

基金项目:

国家自然科学基金(42521005)

中国地质调查局华北科技创新中心人才培育基金(2024HBPJ-G03)

河北省地矿局项目(13000025P003294103391)

北京科学技术协会青年人才托举工程(BYESS2024122)

中央高校基本科研业务专项项目(2-9-2023-05)。

详细信息

作者简介:
侯朝宗(2004-),男,本科生,地质学专业。E-mail:houchaozong1023@163.com,ORCID:0009-0009-3518-1044

通讯作者:
李珊珊(1991-),女,高级实验师,博士生导师,主要从事矿床学研究。E-mail:lishanshan199811@163.com,ORCID:0009-0006-4705-0672

中图分类号: P611;P618.31
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出版历程
- 收稿日期: 2025-10-30
- 网络出版日期: 2026-06-29

Terahertz Time-Domain Spectroscopic Exploration of the Dawusunangou Iron Deposit

1. State Key Laboratory of Geological Processes and Mineral Resources, Frontiers Science Center for Deep-time Digital Earth, China University of Geosciences, Beijing 100083, China;
2. Fourth Geological Brigade of Hebei Bureau of Geology and Mineral Resources Exploration (Hebei Provincial Water Conservation Research Center), Chengde Hebei 067000, China;
3. Key Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education, Peking University, Beijing 100871, China

摘要

摘要: 太赫兹时域光谱技术具有矿物识别、快速定量分析和高灵敏度特性。本文针对华北克拉通冀北地区大乌苏南沟铁矿床典型矿石，及其矿石矿物、脉石矿物进行了岩相学与太赫兹时域光谱分析。研究发现，不同类型矿石在太赫兹波段表现出明显差异。钒钛磁铁矿较铁磷矿具有更显著的振幅衰减与时间延迟以及强吸收特征。磁铁矿、绿泥石、斜长石和黄铁矿在太赫兹波段吸收系数和折射率具有不同的光谱特征，这些差异主要受矿物结构和含量控制。磁铁矿的吸收系数与铁含量呈显著正相关，绿泥石吸收系数与折射率随其含量增加而升高，斜长石吸收系数受共生矿物组合影响，黄铁矿具有高折射率、较低吸收系数和振幅强度。研究表明，太赫兹时域光谱技术能够有效识别典型矿石及其矿石矿物、脉石矿物，为铁矿床深部勘查与矿体圈定提供了一种新的检测手段。
- 太赫兹时域光谱 /
- 华北克拉通 /
- 钒钛磁铁矿 /
- 勘查技术
Abstract: Terahertz time-domain spectroscopy offers advantages in mineral identification, rapid quantitative analysis, and high sensitivity. In this study, petrographic observation and terahertz time-domain spectroscopic analysis were conducted on typical ores, together with their ore minerals and gangue minerals, from the Dawusunangou iron deposit in northern Hebei, North China Craton. The results show that different types of ores exhibit distinct differences in the terahertz band. Compared with Fe-P ores, V-Ti magnetite ores show more pronounced amplitude attenuation, time delay, and strong absorption characteristics. Magnetite, chlorite, plagioclase, and pyrite exhibit different spectral characteristics in absorption coefficient and refractive index in the terahertz band, and these differences are mainly controlled by mineral structure and content. The absorption coefficient of magnetite is significantly positively correlated with Fe content; the absorption coefficient and refractive index of chlorite increase with increasing chlorite content; the absorption coefficient of plagioclase is affected by coexisting mineral assemblages; and pyrite is characterized by a high refractive index, relatively low absorption coefficient, and strong amplitude intensity. The results indicate that terahertz time-domain spectroscopy can effectively identify typical ores, together with their ore minerals and gangue minerals, providing a new detection method for deep exploration and orebody delineation of iron deposits.
- Terahertz time-domain Spectroscopy /
- North China Craton /
- Vanadium-Titanium Magnetite /
- Exploration Technology

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参考文献(58)

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冀北大乌苏南沟铁矿床太赫兹时域光谱特征

doi: 10.3799/dqkx.2026.167

作者简介:
侯朝宗(2004-),男,本科生,地质学专业。E-mail:houchaozong1023@163.com,ORCID:0009-0009-3518-1044

通讯作者:
李珊珊(1991-),女,高级实验师,博士生导师,主要从事矿床学研究。E-mail:lishanshan199811@163.com,ORCID:0009-0006-4705-0672

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Terahertz Time-Domain Spectroscopic Exploration of the Dawusunangou Iron Deposit

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目录

留言板

冀北大乌苏南沟铁矿床太赫兹时域光谱特征

doi: 10.3799/dqkx.2026.167

作者简介: 侯朝宗(2004-),男,本科生,地质学专业。E-mail:houchaozong1023@163.com,ORCID:0009-0009-3518-1044

通讯作者: 李珊珊(1991-),女,高级实验师,博士生导师,主要从事矿床学研究。E-mail:lishanshan199811@163.com,ORCID:0009-0006-4705-0672

计量

出版历程

Terahertz Time-Domain Spectroscopic Exploration of the Dawusunangou Iron Deposit

计量

出版历程

目录

作者简介:
侯朝宗(2004-),男,本科生,地质学专业。E-mail:houchaozong1023@163.com,ORCID:0009-0009-3518-1044

通讯作者:
李珊珊(1991-),女,高级实验师,博士生导师,主要从事矿床学研究。E-mail:lishanshan199811@163.com,ORCID:0009-0006-4705-0672