高分辨率影像在新疆阿尔金山地区地质解译中的应用——以环形山变质侵入体解译为例

Application of high resolution remote sensing image in geological interpretation in Altun mountain area,Xinjiang: Case study in the interpretation of metamorphic intrusion in the ringed mountain area

文章利用具有高分辨率、多光谱特征的Worldview-2遥感数据,对阿尔金杂岩带内的环形山变质侵入体及其围岩进行了详细的岩性、构造解译,将环形山变质侵入体分解为3个相带,在侵入体内解译出数百条断裂构造,并对其进行了统计分析。应用构造解析方法,将环形山变质侵入体内构造现象划分为3期。通过环形山变质侵入体解译分析,丰富了阿尔金杂岩带的构造型式,并藉此展现了高分遥感在地质调查中的判析力。

The metamorphic intrusive body, surrounding rock and structures in the ringed mountain located in the Altun complex belt by using on high resolution and multi-spectral WorldView 2 remote sensing data, were interpreted. Based on the interpretation re- suit, the metamorphic intrusive body was divided into three facies zones, and hundreds of faults were delineated within the intrusion and analyzed by the statistical approach. Based on structural analytical result, the structures within the intrusive body are divided into three stages. The interpretation and structural analysis results help to understand the structural model of Altun complex rock belt, and indicate the key role of RS technology in the geoloaical survey.