豫西地区石龙沟重晶石矿床地质特征及矿床成因探讨  

Geological Characteristics and Genesis of Shilonggou Barite Deposit in Western Henan

作　　者：王永纪 胡伟 刘升武 英亚歌 梅铁牛 余芳菲 WANG Yong-ji;HU Wei;LIU Sheng-wu;YING Ya-ge;MEI Tie-niu;YU Fang-fei(The Third Geological Brigade of Henan Province Non-ferrous Metals Geological and Mineral Resources Bureau,Zhengzhou 450016,China;Henan Research Centre of Detection Engineering and Technology for Non-ferrous Metals Resources,Zhengzhou 450016,China)

机构地区：[1]河南省有色金属地质矿产局第三地质大队,河南郑州450016 [2]河南省有色金属矿产探测工程技术研究中心,河南郑州450016

出　　处：《中国非金属矿工业导刊》2023年第2期25-29,共5页China Non-Metallic Minerals industry

基　　金：河南省财政地质勘查项目“河南省三门峡市陕州区石龙沟重晶石矿普查”(编号:豫自然资发[2019]22号)。

摘　　要：石龙沟重晶石矿大地构造位置处于华北地台南缘,华熊台缘坳陷崤山—鲁山拱褶断束和渑池—确山陷褶断束的过渡地带内。重晶石矿体呈陡倾斜脉状赋存在中元古界熊耳群的断裂破碎带中,其形态受断裂构造带控制,成矿断裂主要为近南北向,为区内重晶石矿的导矿和容矿构造,在断裂破碎带膨胀部位,普遍有重晶石、石英脉充填,形成重晶石工业矿体,矿石类型可分为重晶石型、石英—重晶石型。本文以石龙沟重晶石矿床为研究对象,在矿床地质特征研究的基础上,探讨了石龙沟重晶石的控矿因素和矿床成因,总结了本区重晶石矿的找矿标志,认为石龙沟重晶石矿床主要受地层、断裂构造和岩浆热液“三位一体”因素控矿,矿床成因属中低温热液型脉状重晶石矿床。The geotectonic location of Shilonggou Barite Mine is located in the southern margin of North China platform,the transition zone of Xiaoshan Lushan arch fold fault bundle and Mianchi Queshan depression fold fault bundle in Huaxiong platform margin depression.Barite ore bodies occur in the fault fracture zone of the Mesoproterozoic Xionger Group in the form of steep inclined veins.Their morphology is controlled by the fracture structural zone.The ore-forming fractures are mainly north-south trending,which are the guided and hold structures of the barite ore in the area.Barite and quartz veins are generally filled in the expansion part of the fault fracture zone to form barite industrial ore bodies.The ore types can be divided into barite type and quartz barite type.Taking Shilonggou barite deposit as the research object,based on the study of geological characteristics of the deposit,this paper discusses the ore controlling factors and genesis of Shilonggou barite,summarizes the prospecting indicators of the barite deposit in this area,and believes that Shilonggou barite deposit is mainly controlled by the"trinity"factors of stratum,fracture structure and magmatic hydrothermal,and the genesis of the deposit belongs to the vein barite deposit of medium low temperature hydrothermal type.

关 键 词：重晶石矿 地质特征 控矿因素 矿床成因 河南陕州 

分 类 号：P619.251[天文地球—矿床学]