大硐喇汞矿田中锌矿特征及成因初探  

Feature and Genesis of Zinc Deposit in Dadongna Mercury Orefield

作　　者：廖震文 

机构地区：[1]贵州地勘局103地质大队,贵州铜仁554300

出　　处：《贵州地质》1999年第4期315-320,共6页Guizhou Geology

摘　　要：本文简要介绍了大硐喇汞矿田中汞矿床、锌矿床特征。着重从矿田地化特征、汞矿体、锌矿体产出位置关系、矿石自然类型、结构构造、围岩蚀变、成矿温度、成矿时代等相似性角度提出汞、锌矿床形成于同一成矿体系中。它们就位于不同构造部位是由于Hg、Zn元素地球化学行径差异和沉淀先后所至;锌矿体多而小的现象是成矿期后地壳抬升,沿断裂构造发育线状剥蚀后的残留面貌。提出了在远离断裂的汞矿间歇带内寻找容矿层遭剥蚀程度低、保存较好的锌矿床的建议。The paper briefly introduces the feature in Zinc deposit of Dadongna mercury orefield.Particularly,according to the similar angles like as the geochemical feature of field ,relationship of output position with two ore natural types of ore and its structure,country rock alteration,metallogenic temperature and metallogenic period ,the author points out the two deposits are formed in the same metallogenic system.Among them,different structural position to two elements are caused by the different geochemical behavior and sedimentary order.The phenomenon that the zinc bodies occur as large mineralized points and small quantity can be taken as the residual appearance due to crustal elevation in the post mineralization period and the linear degradation alone the development of fault structure.Finally,it is concluded that the zinc deposit of lower degradation and good conservation in host ore beds need exploring in the intermittent belt of mercury deposit far from the fault.

关 键 词：锌矿特征 大硐喇矿田 汞矿田 矿床成因 

分 类 号：P618.680.1[天文地球—矿床学] P618.680.4[天文地球—地质学]