CAJ | 학술논문

采用ETM＋、ASTER、Geoeye数据在西藏唐嘎幅开展遥感找矿工作，通过矿物光谱匹配分析，利用ETM＋数据提取铁染、羟基等基本蚀变信息从而确定找矿方向，利用ASTER数据提取绿泥石化、泥化等蚀变信息进而确定重点找矿区域。在ETM＋、ASTER数据确定的重点找矿区域内实施0．5m像元的高空间分辨率遥感观察，提取各种线、环构造信息，并结合目视解译成果及构造、蚀变综合信息，确定重点找矿范围及点区位。研究结果表明，该区域中部蚀变分布与典型的斑岩铜矿模型极其相符，找矿重点区域处于线一环构造的集中交汇区域，野外验证已发现铜、钼矿化及石榴子石矽卡岩。
채용ETM＋、ASTER、Geoeye수거재서장당알폭개전요감조광공작，통과광물광보필배분석，이용ETM＋수거제취철염、간기등기본식변신식종이학정조광방향，이용ASTER수거제취록니석화、니화등식변신식진이학정중점조광구역。재ETM＋、ASTER수거학정적중점조광구역내실시0．5m상원적고공간분변솔요감관찰，제취각충선、배구조신식，병결합목시해역성과급구조、식변종합신식，학정중점조광범위급점구위。연구결과표명，해구역중부식변분포여전형적반암동광모형겁기상부，조광중점구역처우선일배구조적집중교회구역，야외험증이발현동、목광화급석류자석석잡암。
Data derived from multiple remote sensing techniques are used for exploration in Tangga, Tibet, with ETM for extracting information on alteration minerals involving Fe3＋ and OH and ASTER for identifying chloritisation and argillisation, in order to locate anomalies for further examination with Geoeye data. The result of the research shows that the distribution of hydrothermal alteration in that area resembles typical porphyry mineralization model and that the key exploration areas are along the linear and ring structures. Several sites of Cu and Mo mineralization and garnet-bearing skarn have been discovered.