皖南上震旦统蓝田组中银铅锌等多金属矿床成因探讨  

A Study of the Origin of Ag-Pb-Zn Polymetallic Ores in the Lantian Formation in Southern Anhui

作　　者：李双应[1] 

机构地区：[1]合肥工业大学资源与环境科学系,230009

出　　处：《地质论评》2001年第2期129-138,共10页Geological Review

基　　金：中国有色金属工业总公司银矿基金(编号 91-Ag-4)

摘　　要：皖南地区上震旦统蓝田组,是银铅锌等多金属矿床的重要赋矿层位。区域地质、矿床地质和地球化学特征研究表明,银铅锌等多金属矿床是由于热水沉积作用而形成。热水沉积作用受断裂控制明显,主要呈带状沿着祁门—三阳坑—万家桥深断裂NE方向展布。热水沉积形成了银铅锌等多金属矿床、铁锰矿床以及蓝田组底部数千平方千米含锰碳酸盐岩。这一认识不仅为皖南地区矿床的成因给予了新的解释,也为今后该区矿产资源的勘察工作提供了新的思路。The Lantian Formation of Upper Sinian developed in southern Anhui is the host layer of ores such as Ag, Pb and Zn. The characteristics of the regional geology, ore geology and geochemistry indicate that the Ag-Pb-Zn poly metallic ores were formed by hydrothermal deposition processes, which were controlled by faults. The faults mainly develop in a NE direction along the Qimen-Sanyangkeng-Wangjiaqiao deep fault. The hydrothermal deposits result in Ag-Pb-Zn polymetallic ores, Fe-Mn ores and Mn-bearing carbonate rocks of some thousand square kilometres on the bottom of the Lantian formation. This understanding helps to account for the origin of the deposits and provides information for future ore exploration in the area.

关 键 词：银铅锌矿床 多金属矿床 热水沉积作用 蓝田组 上震旦统 成因 安徽 

分 类 号：P618.52[天文地球—矿床学]