西藏纳木错—嘉黎断裂带铜多金属矿化特征及找矿模型

Characteristics of Cu-polymetallic mineralization at Namucuo-Jiali fractural zone in Tibet and the ore prospecting model

西藏纳木错—嘉黎断裂带是狮泉河—申扎—嘉黎结合带的重要组成部分,该断裂带为区内的控岩控界断裂,具有规模大、切割深的特点,是西藏念青唐古拉山地区铜多金属成矿的重要导矿构造。断裂带西起纳木错,东至嘉黎县城以东,全长320km以上,沿该带及两侧分布有大量地化异常及大、中型矿床(点)。通过对区内地、物、化、遥资料的综合研究,分析了已知矿床的地层、构造、岩浆岩与成矿的关系,以及铜铅锌多金属矿的矿化特征及分布规律,建立了综合信息技术找矿模型。

Namucuo-Jiali fractural zone is part of Shiquanhe-shenzha-Jiali tectonic belt and controls rock distribution and boundaries of major geological bodies. It is the major conductive structure of ore fluid toally 320 km long {rom Namucuo in west to Jiali in east and extends vertically to great depth. On either sides of the zone occur various geochemical anomlies and large-medium-sized ore deposits and occurrences. Based on analysis of geological, geophysical, geochemical and remote sensing data and relation of the known ore deposits to stratigraphy, tectonics and magmatic rocks and characteristics of Cu-Pb-Zn poly- metallic mineralization and distribution pattern along the zone is established the ore prospecting model.