福建泰宁曹家坊金矿地质特征及成因探讨

Geological characteristics and genesis of Caojiafang gold deposit in Taining,Fujian Province

泰宁曹家坊金矿位于闽西北隆起带的浦城-洋源隆起与邵武-建宁拗陷的接合部位。区内金矿体主要呈脉状、透镜状赋存于北东东向的断裂破碎蚀变带中。矿体形态、产状严格受到断裂带的控制,矿体与围岩界线较清晰,北东东向断裂带既是导矿构造,也是容矿构造。通过对泰宁曹家坊金矿地质特征的总结与分析,初步认为该矿床的成因类型为变质-热液充填型脉状金矿床。

The Caojiafang gold deposit in Taining County is located at the junction of Pucheng-Yangyuan uplift and Shaowu-Jianning depression in the uplift belt of northwest Fujian province.The ore bodys in this area is mainly veined and lenticular in the fracture and alteration zone of the northeastern fracture zone.The shape and occurrence of the orebody are strictly controlled by the fault zone,and the boundary between the ore body and the surrounding rock is clear,and the northeastern fault zone is not only the ore-conducting structure,but also the ore-bearing structure.By summarizing and analyzing the geological characteristics of the gold mine in taining,the genetic type of the deposit is considered as metamorphic-hydrothermal filling type vein deposit.