投稿时间：2024-08-12
修订日期：2025-06-26
网络发布日期：2026-04-22
中文摘要:河北木吉村铜(钼)矿田位于太行山构造岩浆岩带北部，具有优越的成矿地质背景与成矿环境，是太行山北段最重要的铜多金属集中区。该地区覆盖层较厚，多源数据获取难度大，以往研究多集中于传统地质方法。开展综合多源遥感探测工作，可获取该地区地质信息、查明矿化蚀变分布，对后续该地区地质研究及矿产勘查具有重要意义。文章选取木吉村矿田及外围为研究区，基于Sentinel-2A MSI、ASTER多光谱数据，采用主成分分析法和比值法提取了铁染、铝羟基、镁羟基、硅化4种蚀变信息；并利用GF-5A AHSI高光谱数据，结合波谱沙漏技术，识别出了赤铁矿、黄铁矿、蒙脱石、高岭石、白云母、绿泥石6种蚀变矿物。蚀变信息分布与已知矿床(点)吻合程度较好，证明了蚀变信息对矿体分布具有很好的指示意义。同时，结合Sentinel-2A MSI、GF-2 PMS中、高空间分辨率遥感数据，在影像信息增强基础上共解译出92条线性构造和13处环形构造，与1∶20万地质图对比，解译结果相符且揭示了更多小型线性构造。综合蚀变及线环构造提取结果，文章在研究区圈定了4处找矿远景区，可为该地区下一步找矿勘查工作提供参考。
Abstract:The Mujicun Cu-Mo ore field in Hebei Province is located in the northern part of the Taihang Mountains tectonic magmatic belt, with a highly favorable geological background and mineralization environment, and is the most important copper polymetallic concentration area in the northern part of the Taihang Mountains. Given the high coverage of the Mujicun ore concentration area and challenges in data acquisition from multiple sources,previous studies primarily employed traditional geological methods. Conducting integrated multi-source remote sensing study enables the acquisition of regional geological data and delineation of mineralized alteration patterns, providing critical insights for subsequent geological research and mineral exploration in the area. The Mujicun ore field and its surroundings were chosen as the study area. Based on Sentinel-2A MSI and ASTER multispectral data, four types of alteration information were extracted by principal component analysis and ratio method, including iron stained, aluminum hydroxyl, magnesium hydroxyl, and silicification. The GF-5A AHSI hyperspectral data were processed and six alteration minerals were identified by using the spectral hourglass technique including hematite, pyrite, montmorillonite, kaolinite, muscovite, and chlorite. The distribution of alteration minerals matches well with known deposits(occurrences), proving that the alteration information has good indicative significance for the distribution of the ore bodies. At the same time, we interpreted 92 linear structures and 13 circular structures in the study area using Sentinel-2A MSI and GF-2 PMS medium and high spatial resolution remote sensing data based on enhanced image information, compared with 1∶20 0000 geological maps, yielded better results and revealed additional small-scale linear structures. Based on the comprehensive analysis of extracted alteration information and lineament-circular structures, four high prospective target areas have been identified. These findings can serve as a reference for future mineral exploration programs in the region.
keywords:multisource remote sensing hydrothermal alteration lineament-circular structures ore prediction Mujicun Cu-Mo ore field
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基金项目:紫金集团高光谱遥感技术在地质找矿中的实验性研究项目(编号:4201KY2024110003);国家重点研发计划项目(编号:2022YFC2903702-01、2022YFB3902000、2023YFC2906404-01);中国地质调查局项目(编号:DD20243407)共同资助
引用文本：
王丹,付超,栗旭升,汪大明,陈建平.2026.基于多源遥感的河北木吉村铜(钼)矿田蚀变信息与线环构造提取及找矿预测[J].矿床地质,45(2):333~351WANG Dan,FU Chao,LI XuSheng,WANG DaMing,CHEN JianPing.2026.Extraction of alteration information and lineament-circular structures and prospecting prediction based on multisource remote sensing data in Mujicun Cu-Mo ore field, Hebei[J].Mineral Deposits45(2):333~351
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