福建浦城杉树坞萤石矿地质特征及成因分析  

Geological characteristics and genetic analysis of fluorite ore in Shashuwu,Pucheng county,Fujian Province

作　　者：王占兵[1] 金松[1] 高立湧 张明明[1] 朱利岗 Wang Zhanbin;Jin Song;Gao Liyong;Zhu Ligang(Geological Institute of China Chemical Geology and Mine Bureau,Zhuozhou,Hebei,072754,China)

机构地区：[1]中化地质矿山总局地质研究院,北京100101

出　　处：《化工矿产地质》2021年第3期216-221,共6页Geology of Chemical Minerals

基　　金：中国地质调查局项目“中国东部重点工作区萤石硼资源调查”(WKZB1911BJM500360);中化地质矿山总局化工地质科技项目“内蒙古四子王旗-锡林浩特地区萤石矿找矿预测”(ZHDK202004)。

摘　　要：杉树坞萤石矿属于岩浆期后中-低温热液充填型脉状矿床,为构造-岩浆成矿系统的产物。通过槽探、钻探揭露验证,圈定1号萤石矿体,岩石多呈绿色、紫色;为板状结构、角砾状结构,块状、条带状构造。矿体主要受北东向、北北东向断层构造控制,处于闽西北隆起带北部;其次,受燕山期的花岗岩岩浆活动,含矿热液沿构造破碎带向上运移沉积,形成网脉状萤石矿;在含矿热液运移过程中,围岩产生高岭土化、绢云母化、绿泥石化、硅化等蚀变组合。Shashuwu fluorite mine belongs to middle-low-temperature hydro-thermal filling vein deposit of the post-magmatic period,and was the product of the tectonic-magmatic metallogenic system.The No.1 fluorite ore body was delineated by trenching and drilling.The rocks are mostly green and purple.It is a plate-like texture,breccia-like texture,massive or strip structure.The orebody is mainly controlled by the NE or NNE fault structure and is located in the northern part of the northwest Fujian uplift belt.Secondly,the ore-bearing hydrothermal fluid migrated and deposited upward along the fracture zone of the structure and formed the net vein-like fluorite under the influence of granite magmatic activity in Yanshanian.In the process of ore-bearing hydrothermal migration,the surrounding rock produces the combination of wall-rock alteration such as kaolinization,sericite,chlorite and silicification.

关 键 词：杉树坞萤石矿 构造中-低温热液 围岩蚀变 

分 类 号：P619.215[天文地球—矿床学]