ASTER卫星数据在西昆仑团结峰地区基性-超基性岩信息提取中的应用研究  

Application of ASTER Satellite Data in Information Extraction of Basic-Ultrabasic Rocks in Tuanjie Peak Area,West Kunlun

作　　者：匡薇[1] 刘超 田江涛 朱彦菲 于浩[1] Kuang Wei;Liu Chao;Tian Jiangtao;Zhu Yanfei;Yu Hao(Information Center,Bureau of Geology and Mineral Exploration and Development of Xinjiang,Urumqi,Xinjiang,830001,China;Xinjiang Geological Survey Institute,Urumqi,Xinjiang,830001,China)

机构地区：[1]新疆维吾尔自治区地质矿产勘查开发局信息中心,新疆乌鲁木齐830001 [2]新疆维吾尔自治区地质调查院,新疆乌鲁木齐830001

出　　处：《新疆地质》2023年第4期630-634,共5页Xinjiang Geology

基　　金：中-巴经济走廊铜稀有等战略性矿产资源成矿预测与潜力评价(2022A03010-4);喀喀喇昆仑地区幔原岩浆活动动力学过程及其成矿效应(2022D01A289);和田县鱼尾山一带铁锡矿调查评价(XGMB202320);新疆和田县银石山-胜利河一带银铜多金属矿普查(K22-3-XJ008);新疆和田县团结峰-兴山1∶5万矿产地质调查(K21-1-XJ001)共同资助。

摘　　要：利用遥感影像热红外波段提取蚀变矿物信息的技术已很成熟,但对于如何利用热红外波段准确提取超基性岩信息还需继续探索。笔者通过提取西昆仑已知超基性岩体的波谱曲线,分析超基性岩体波谱特征,提出针对热红外波段的主成分分析法,采用ASTER数据在西昆仑团结峰地区进行实验,总体识别精度达100%,且识别的岩体边界比以往的方法更为精细,其操作方法简单,达到快速识别的目的。同时,ASTER热红外主成分分析法为高海拔地区快速锁定某类地物或地物组合提供了新思路。The technology of extracting altered mineral information using the thermal infrared band of remote sensing images is mature,but further exploration is needed on how to accurately extract ultrabasic rock information using the thermal infrared band.The author extracted the spectral curves of known ultrabasic rock masses in West Kunlun,analyzed the spectral characteristics of ultrabasic rock masses,and proposed a principal component analysis method for thermal infrared bands.ASTER data was used for experiments in the Tuanjie Peak area of West Kunlun,and the overall recognition accuracy reached 100%.The identified rock boundaries were more precise than previous methods,and the operation method was simple,achieving the goal of rapid recognition.Meanwhile,the ASTER thermal infrared principal component analysis method provides a new approach for quickly identifying certain types of features or combinations of features in high-altitude areas.

关 键 词：超基性岩 热红外 ASTER 主成分 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]