贵州的层控重晶石矿床

本文概述了贵州层控重晶石矿床的时空分布特征。根据矿床的改造程度、改造方式、产出层位、围岩性质及主要矿物组合等,对贵州的层控重晶石矿床分为三型九式(亚类)。并对判断矿床改造程度的标志进行了探讨,着重讨论了重晶石化学成分和硫同位素变化规律及其作为判断矿床改造程度标志的重要意义。在此基础上讨论了矿床的形成过程和成矿机制,提出了层控重晶石矿床的成矿模式。最后对贵州层控重晶石矿床的找矿远景和找矿方向提出了意见。

Strata-bound Barytes Ore Deposits in Guizhou

This paper presents the distribution characters of the geological era and space about the strata-bound barytes ore deposits in Guizhou. According to the reform degree, style, occuring strata, wall rock properties and mineral assemblages etc. of ore deposits. They can be divided into three types and nine sub-types. The criteria of reform degree of ore deposits are discussed. Special emphasis is put on the variance laws of barytes composition and sulphur isotopes, which are very important as the criteria. On this basis the writers discussed the process and mechanism of mineralization, and suggested the model of mineralization of the strata-bound barytes ore ddposits. Finally, the writers gave some advice about the prospect and direction of finding strata-bound barytes ore deposits in Guizhou.