铀矿勘查岩心高光谱技术研究及应用十年进展  

Ten Years’ Achievements of Hyperspectral Technology for Core and its Application in Uranium Exploration

作　　者：叶发旺[1] 张川[1] 邱骏挺[1] 武鼎[1] 车永飞[1] 杨云汉 芮歆旻 李新春[1] 淦清清 王昊 YE Fawang;ZHANG Chuan;QIUJunting;WU Ding;CHE Yongfei;YANG Yunhan;RUI Xinmin;LI Xinchun;GAN Qingqing;WANG Hao(National Key Laboratory of Remote Sensing Information and Image Analysis Technology,Beijing Research Institute of Uranium Geology,Beijing100029,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》2022年第4期623-636,共14页World Nuclear Geoscience

基　　金：“基于航空高光谱与伽马能谱的铀矿勘查技术研究”(编号:[2021]88);“铀资源高光谱遥感智能化勘查关键技术”(编号:遥YY[2101])联合资助。

摘　　要：岩心高光谱技术为地质矿产勘查领域钻孔岩心的数字化与信息挖掘提供了重要新技术支持。总结了近十年来铀矿勘查领域岩心高光谱技术主要进展。通过研建HD-HyScan成像光谱扫描系统,形成了一套集岩心高光谱数据获取、数据处理、矿物识别、半定量/定量编录和三维可视化于一体的铀矿勘查岩心高光谱技术方法体系。突破了岩心成像光谱扫描、岩心高光谱图像自动裁切、蚀变矿物相对含量及重要参数定量反演及编录、构造约束的蚀变三维可视化等一系列关键技术,加强了对江西相山火山岩、广西苗儿山花岗岩、松辽盆地南部砂岩以及新疆白杨河火山岩等不同类型铀矿区成矿规律的认识,对推动深部铀矿找矿具有重要参考意义。未来应加强岩心岩性、颜色、粒度及主要造岩矿物识别新技术研发、铀矿勘查岩心高光谱技术系列标准制定、岩心高光谱扫描装备自主研发及推广应用,以实现岩心高光谱技术在铀矿生产科研中的规模化应用。Hyperspectral core scanning,a new technology that supports drill core logging,benefits geological surveying and ore exploration. The ten years’ achievements of hyperspectral core scanning study and application in the field of uranium surveying are reviewed in the paper. With the HD-HyScan Imaging Spectroscopy System,a series of procedures,including hyperspectral data acquisition,data processing,mineral identification,quantitative or semi-quantitative logging,three-dimensional visualization were tested,and a set of methods,including hyperspectral scanning,automatic image cropping,automatic mineral extraction,quantitative or semi-quantitative mineral inversion,threedimensional modelling were established. Based on these methods,the hyperspectral imaging data of drill cores from volcanic-(Xiangshan in Jiangxi province and Baiyanghe in Xinjiang province),granite-(Miaoershan in Guangxi province), and sandstone-type(Dalin in southern Songliao basin) uranium deposits were acquired and investigated. The results contribute to a better understating of uranium metallogeny for these deposits and benefit uranium prospecting in depth. It is,therefore,of great economic and scientific interests to extensively use this technology in future uranium exploration. It is believed that new scanning equipment and standard work flow should be manufactured and established,and new methods, such as automatic identification of color,grain size,lithology for drill core samples,should be developed.

关 键 词：岩心 高光谱 编录 三维可视化 铀矿勘查 

分 类 号：TP753[自动化与计算机技术—检测技术与自动化装置] P627[自动化与计算机技术—控制科学与工程] P619.14[天文地球—地质矿产勘探]