GF-5高光谱数据在植被覆盖区的蚀变信息提取研究——以广东省玉水铜矿为例  

The Study on Alteration Information Extraction of GF-5 Hyperspectral Datain Vegetation Coverage Area: A Case Study of the Yushui Copper Deposit in Guangdong Province

作　　者：连琛芹 姚佛军[1] 陈懋弘[1] 马克忠 王海龙 LIAN Chenqin;YAO Fojun;CHEN Maohong;MA Kezhong;WANG Hailong(Key Laboratory of Metallogeny and Resources Assessment,Institute of Mineral Resources,Chinese Academy of Geological Sciences,Beijing100037,China;School of Earth Sciences and Resources,China University of Geosciences,Beijing100083,China;Hohhot Natural Resources Comprehensive Survey Center,China Geological Survey,Hohhot,Inner Mongolia010010,China)

机构地区：[1]中国地质科学院矿产资源研究所成矿与资源评价重点实验室,北京100037 [2]中国地质大学(北京)地球科学与资源学院,北京100083 [3]中国地质调查局呼和浩特自然资源综合调查中心,内蒙古呼和浩特010010

出　　处：《现代地质》2020年第4期680-686,共7页Geoscience

基　　金：中国地质调查局全国矿产资源潜力动态评价项目(DD20190193);中央级公益性科研院所基本科研业务费专项资金资助项目(K1501);中国地质调查局基本科研业务费项目(JYYWF201830)。

摘　　要：高分五号卫星是我国第一颗高光谱综合观测卫星,自2018年发射以来,还未见到该卫星数据在蚀变信息提取研究领域的相关报道。本研究以高分五号高光谱数据为主要数据源,采用MNF算法、PPI算法,结合SAM技术的方法,提取广东省玉水铜矿植被覆盖区的蚀变矿物信息。本次提取的蚀变矿物有赤铁矿、针铁矿、高岭石、蒙脱石和白云母。结合已知的地质矿产资料,对提取的异常信息进行了分析验证。验证结果显示,该数据提取的蚀变异常与研究区地质信息吻合较好。上述研究表明,利用高分五号高光谱数据对本地区蚀变矿物信息的提取是可行的,对该区未来矿产勘查具有重要的指导意义,同时也为未来高分五号高光谱数据在蚀变信息提取研究方面提供了参考。GF-5 satellite is China's first hyperspectral integrated observation satellite.Since the launch of GF-5 satellite in 2018,we did not found any studies reported on alteration information extraction.In this paper,GF-5 hyperspectral data were used as the main data source,and the MNF algorithm,PPI algorithm and SAM technology were used to extract the altered mineral information in the vegetation coverage area of the Yushui copper deposit in Guangdong Province.The altered minerals extracted in this study include hematite,goethite,kaolinite,montmorillonite and muscovite.Based on the known geological and mineral resources,the extracted information was analyzed and verified.The verification results show that the information on the altered minerals extracted from the study area is in good agreement with the geological information.In summary,GF-5 hyperspectral data is feasible for the alteration information extraction in this area,and has important guiding significance for copper exploration.At the same time,this study also provides reference for the future research of alteration information extraction of GF-5 hyperspectral data.

关 键 词：高分五号 高光谱 植被覆盖区 蚀变矿物 蚀变信息提取 铜矿 

分 类 号：P627[天文地球—地质矿产勘探] TP79[天文地球—地质学]