河南淅川石槽沟钒矿床地质地球化学特征与成因分析  

The Geological and Geochemical Characteristics and Genesis of Shicaogou Vanadium Deposit in Xichaun county, Henan province

作　　者：韩天成[1] 汤清龙[1] 李自民[1] 刘登锋[1] 李国勇[1] 陈栋辉 

机构地区：[1]河南省地质矿产勘查开发局第一地质勘查院,河南郑州450000

出　　处：《资源导刊（地球科技版）》2015年第3期34-38,共5页

基　　金：河南省实施找矿突破战略行动示范项目--“河南省南阳盆地及周边金属矿整合勘查”（任务书编号：豫地矿[]2011]-2号）,其支撑项目：河南省浙川县槐树营一毛堂一带多金属矿区石槽沟钒矿段详查.

摘　　要：石槽沟钒矿床产于淅川县北部下寒武统水沟口组。该组为一套碳酸盐岩夹碎屑岩沉积建造，形成于旱寒武世扬子板块北缘向秦岭海槽过渡的构造环境。通过对该矿床地质特征研究，认为钒矿体呈层状产出，严格受层位控制，钒矿石类型为（含碳）硅质岩与黏土岩型，钒主要赋存于矿石中黏土矿物和钒云母中。通过对钒矿石地球化学特征的研究，表明石槽沟钒矿床形成于活动大陆边缘向远洋深海过渡带上的缺氧沉积环境。其沉积物源主要为陆缘，其次有海底热水—热液和生物物质加入的多源性特征。该钒矿床属于滨海至浅海沉积型矿床。The Shicaogou vanadium deposit occurs in the Lower Cambrian Shuigoukou Formation in the northern Xichuan County. The Shuigoukou Formation is a suit of carbonate rocks interbedded with clastic rock. It should be the transitional regions from the northern margin of Yangtze Plate to the Qinling trough with a sedimentary system of a continental margin sea during the Early Cambrian. By researching the geological features of ore deposit, it is concluded that the vanadium ore body, as stratiform, is strictly controlled by strata. The major ore types are carbonaceous siliceous, siliceous and clay rock. Vanadium mainly occurs in the clay mineral and roscoelite in the ore. The geochemical characteristics of vanadium ore indicate that Shicaogou vanadium deposit formed in the anoxic sedimentary environment in the intermediate zone between continental margin and deep, the sediment are multi-sourced. It is concluded that the vanadium deposit should be sedimentary deposit in coastal area to shallow sea area.

关 键 词：石槽沟钒矿床 地质特征 地球化学特征 成因 

分 类 号：P618.51[天文地球—矿床学]