中国-吉尔吉斯天山成矿单元划分及其特征

摘要

中国—吉尔吉斯天山地处中亚天山造山带中段，是古亚洲构造域的重要组成部分，地质构造复杂，矿产资源丰富。在收集境内、外大量地质、矿产资料及图件的基础上，通过近年来对研究区内地层、构造、岩浆及矿产的研究，在大地构造单元划分基础上对研究区内天山进行了成矿单元划分，划分出北天山—伊犁、中天山和南天山—塔里木3个成矿省，进一步划分为22个成矿带和58个成矿亚带，总结了各成矿单元的地质及矿产特征，为天山成矿带矿产勘查和地质大调查工作部署提供有益的思路和依据。%Located in the middle of Tianshan orogenic belt, the study area in Tianshan Mountains of China and Kyrgyzstan has com⁃plex geological structure and rich mineral resources. Previous work in Tianshan was conducted respectively in China and Kyrgyzstan. On the basis of previous studies, the authors investigated the extending trends of various tectonic units and their relationships. The ex⁃amination of stratigraphy,tectonics,magmatism and ore deposits in the Tianshan Mountains of China and Kyrgyzstan in recent years has disclosed that the study area may be classified into one first-order metallogenic domain (the Paleo-Asia metallogenic domain), three second-order metallogenic provinces, 22 third-order metallogenic belts and 58 fourth-order metallogenic subbelts. This paper gives a detailed description of the geology and metallogenesis in individual metallogenic belts in the study area .