河南汝阳老代仗沟铅锌矿床地质特征及热液蚀变分带性  

Geological Characters and Hydrothermal Alteration Zonation of Laodaizhanggou Lead-zinc Deposit of Ruyang County, Henan Province

作　　者：张均直[1] 赵云雷[2] 李战明[3] 郗国增[3] 吴飞[3] 李大卓[3] 张坤[3] 

机构地区：[1]河南省地质调查院,河南郑州450001 [2]河南省地质矿产勘查开发局第一地质矿产调查院,河南洛阳471023 [3]河南省地质矿产勘查开发局第二地质勘查院,河南许昌461000

出　　处：《资源导刊（地球科技版）》2013年第7期67-73,共7页

摘　　要：老代仗沟铅锌矿床属于构造蚀变岩型热液矿床。近东西向断裂构造蚀变破碎带控制着工业矿体的空间分布。断裂蚀变破碎带具清晰的分带性：由内向外依次为碳酸盐化→绢英岩化→绿泥石化→黄铁矿化→围岩，蚀变及矿化强度也依次由强→弱。本文以蚀变分带模式客观地揭示出与找矿有关的热液蚀变信息。Laodaizhanggou lead-zinc deposit belongs to tectonic altered hydrothermal ore deposits. The distribution of the industrial minerals is controlled by proximally E-W fracture altering fragmentation belt. The altering fragmentation belt shows a clear zonation： carbonation → beresitization →chloritization →pyritization wallrock from inside to outside, the intensity of alteration and mineralization also changed from strong to weak. With the altering zonation pattern, the hydrothermal alteration messages for prospecting impersonally unveiled in the paper.

关 键 词：热液矿床 热液蚀变 常量组分 矿石组构特征 汝阳 

分 类 号：P618.51[天文地球—矿床学]