贵州省凤冈半坡萤石-重晶石矿床地质特征及找矿前景分析

Geological characteristics and prospecting prospect of fluorite-barite deposit in Fenggang Banpo Area,Guizhou

萤石作为我国战略性非金属矿产资源,是贵州新一轮找矿突破战略行动的目标矿种之一。与萤石共生的热液重晶石由于其矿石品质高于沉积重晶石,也成为贵州省在新一轮找矿行动中的重点勘查对象。凤冈半坡地区与务川-沿河地区萤石-重晶石具有相似地质和成矿背景,已发现萤石-重晶石矿脉,在以往勘查程度较低的情况下开展该区找矿具有一定前景。贵州省凤冈地区的萤石矿、重晶石矿属碳酸盐岩容矿的非岩浆热液矿床,主要产出在奥陶系桐梓组、红花园组地层中。矿床严格受地层和构造的控制,主要发育在北西向断层及节理、裂隙中。本文以贵州省凤冈半坡萤石-重晶石矿床为研究对象,分析了该区的矿床地质特征,进行了成矿条件分析和潜力研究,以期为该区开展进一步找矿工作提供一些建议。

Fluorite,as a strategic non-metallic mineral resource in China,is one of the targets of the new round of strategic exploration breakthrough in Guizhou.Barite is also widely used in industry as raw materials.As a region with similar geological and mineralization background to fluorite-barite in Wuchuan-Yanhe Area,fluorite-barite veins have been found in Fenggang Banpo Area.Under the condition of low exploration degree in the past,there is a certain prospect for exploration in this area.Fluorite and barite in Fenggang Area of Guizhou Province belong to the non-magmatic epigenetic hydrothermal deposits of carbonate rocks,mainly produced in the Ordovician Tongzi Formation and Honghuayuan Formation strata.The NW-trending faults,joints and fissures in the strata are the orebearing space of fluorite and barite,and the deposits are strictly controlled by the strata and structure.In this paper,the fluorite-barite deposit in Fenggang Banpo Area of Guizhou Province is taken as the research object,the geological characteristics of the deposit in this area are analyzed,and the metallogenic conditions and potential are studied.In order to provide some suggestions for further exploration in this area.