湖北省郧县何家墁钒矿成矿地质特征及控矿因素浅析

Metallogenic Geological Characteristics and Ore-controlling Factors of Hejiaman Vanadium Deposit in Yunxian County,Hubei Province

通过对何家墁钒矿所处区域地质背景、矿区地质特征、矿体特征、含钒岩系特征、矿床成因以及矿床控矿因素的综合分析,认为何家墁钒矿主要受庄子沟组下段地层、浅变质的硅质炭质碎屑岩石组合、还原环境下的深水滞流相古地理条件、一定程度的海底热水活动以及矿区内北东向断裂(成矿期后)构造的联合控制。同时轻微的变质作用与矿化富集无关,其空间分布形态主要与后期构造作用有关。

Based on the comprehensive analysis of the regional geological background,geological characteristics,orebody characteristics,vanadium-bearing rock series characteristics,ore genesis and ore-controlling factors of the Hejiaman vanadium deposit,it is considered that the Hejiaman vanadium deposit is mainly affected by the lower strata of the Zhuangzigou Formation,the shallow metamorphic siliceous carbonaceous clastic rock assemblage and the deep-water stagnant facies in the reductive environment,certain degree of submarine hydrothermal activity and NE-trending faults (post-metallogenic) structures in the mining area.At the same time,minor metamorphism has nothing to do with mineralization enrichment,and its spatial distribution pattern is mainly related to late tectonism.