南天山东段金矿化分带特点及远景预测

Zonation characteristics of gold mineralization in eastern part of southern Tianshan and prospect prognosis

南天山东段处在我国重要的多金属成矿带———天山褶皱带上 ,具有重要的金成矿潜力。本文在对东天山区域地质、地质历史演化、地球化学等方面的分析研究基础上 ,对南天山东段金矿化进行分带 ,总结了金矿化特点和分布规律 ,提出寻找金矿的主要类型为韧性剪切带型、碎裂蚀变岩型、元古代岩浆 (变质 )热液型 ,并指出了找矿的有利靶区。

The eastern part of the southern Tianshan is located in Tianshan folded belt--an important polymetallic metallogenic belt in China. It is of great potential for gold metallogeny. On the basis of the analysis on the regional geology, the geologic evolution and the geochemistry of the eastern Tianshan, the zonation of gold mineratization of the eastern part of the southern Tianshan is made, characteristics and distibution of gold deposits are summarized. Authors suggest that gold deposits of ductile shearing zone type, cataclastic altered rock type, magmatic(metamorphic) hydrothermal type of Proterozoic age should be main prospecting types, and finally authors propose favorable target areas for prospecting.