航空高光谱遥感技术在铀矿找矿中的典型应用——以新疆雪米斯坦地区为例  

Typical applications of airborne hyper-spectral remote sensing technology in uranium exploration:A case study of Xuemisitan area,Xinjiang

作　　者：叶发旺[1] 张杰林[1] 张川[1] 徐清俊[1] 刘洪成[1] 武鼎[1] 邱骏挺[1] 童勤龙[1] 车永飞[1] 李瀚波[1] 木红旭 杨国防[1] 淦清清 李新春[1] YE Fawang;ZHANG Jielin;ZHANG Chuan;XU Qingjun;LIU Hongcheng;WU Ding;QIU Junting;TONG Qinlong;CHE Yongfei;LI Hanbo;MU Hongxu;YANG Guofang;GAN Qingqing;LI Xinchun(National Key Laboratory of Remote Sensing Information and Image Analysis Technology Beijing Research Institute of Uranium Geology,Beijing 100029,China)

机构地区：[1]核工业北京地质研究院遥感信息与图像分析技术国家级重点实验室,北京100029

出　　处：《世界核地质科学》2024年第2期233-249,共17页World Nuclear Geoscience

基　　金：核能开发项目(编号:[2021]88)资助。

摘　　要：高光谱遥感技术是地质矿产勘查领域的重要新技术、新方法。近些年,航空高光谱遥感技术及其在铀矿找矿中的应用得到核地质系统的重视并开展深入研究。在分析前人铀矿找矿思路基础上,阐述了CASI/SASI航空高光谱遥感技术在新疆雪米斯坦地区的铀矿找矿新思路及其典型应用效果。首先深入剖析了白杨河铀矿床及其周围的航空高光谱遥感特征,识别了铀矿床产出的区域热液活动中心、铀成矿高铝绢云母蚀变等区域找矿关键要素,提出“区域热液活动中心识别-铀矿化航空高光谱蚀变组合发育地段确定-蚀变、构造、有利岩性等要素复合地段优选”的航空高光谱遥感铀矿找矿新思路;然后根据全区的航空高光谱遥感信息进行了找矿远景区筛选和野外查证,新发现了铀矿化异常。新发现的铀矿化异常地段航空高光谱遥感特征明显,地表铀异常显著,控矿断裂构造发育,地质环境有利,铀矿找矿前景良好。其是笔者对如何充分挖掘高光谱遥感铀矿找矿信息,提升高光谱遥感技术更好服务铀矿找矿应用效果的深入思考与探索,也是在地表岩石裸露程度良好的地区利用高光谱遥感技术直接寻找热液型矿产的良好例证,希冀为广大地质工作者开展找矿方法创新和应用提供参考。Hyper-spectral remote sensing technology is an important new technology and method in the field of geological and mineral exploration.In recent years,airborne hyper-spectral remote sensing technology and its application to uranium exploration have received attention and extensive research in nuclear geological system.On the basis of analyzing the previous uranium predict ideas from geology,geopyhsics and geo-chemistries in Xuemisitan area,Xinjiang,this article elaborated on the new uranium exploration idea and its typical application effects using CASI/SASI airborne hyper-spectral data.Firstly,an in-depth analysis of the airborne hyper-spectral remote sensing characteristics of the Baiyanghe uranium deposit and its surrounding areas were conducted.Key elements for uranium prospecting,such as the regional hydrothermal activity center and the alteration of H-Al sericite related in uranium mineralization,were proposed.An innovative idea and approach were proposed for uranium exploration through airborne hyperspectral remote sensing;which includes“identification of regional hydrothermal activity centers-determination of the area of developing airborne hyperspectral alteration combination related with uranium mineralization-selection of composite areas of alteration,structure,favorable lithology,and other elements”.Then,based on the airborne hyperspectral remote sensing information,the uranium prospecting areas were selected and the field investigations were carried out.As a result,a new uranium mineralization anomaly was discovered.Detailed surface radioactive measurements,geological surveys,trench exploration,and other investigations were conducted on the anomalous areas.Research has shown that newly discovered uranium mineralization anomalies exhibit distinct airborne hyperspectral remote sensing features,strong surface uranium anomalies,well-developed controlling fault structures,favorable geological environments,and promising uranium exploration prospects in deep.This article is the author’s in-depth thinki

关 键 词：CASI/SASI航空高光谱遥感 铀矿找矿 典型应用 新疆雪米斯坦 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置]