陕西省商南县烟城沟钒矿床地质与地球化学特征

Geological and geochemical characteristics of Yanchenggou V deposit in Shangnan county,Shaanxi province

通过野外地质调查研究和岩石学、岩石化学、稀土元素地球化学分析,总结了烟城沟钒矿床的地质背景、矿床地质特征,研究了该矿床的地球化学特征;烟城沟钒矿产于南秦岭下寒武统水沟口组黑色岩系中,严格受层位控制,含矿岩石主要为硅质岩夹硅质泥岩;地球化学特征表明该矿床形成于大陆边缘与深海环境过渡带上,且与海底热水活动有关。

Based on geological survey,petrology,lithogeochemistry,geochemistry of REE,this paper summarizes the geological backgroud and characteristics of Yanchenggou V deposit,and studies its geochemical characteristics.The deposit occurs in black rock series of Lower Precambrian Shuigoukou formation in southern Qinling area and is strictly controlled by stratigraphic horizon..The ore-hosted rock is silicalite intercalated with argilaceous rock.The geochemical characteristics imply its position at transitional zone between continental margin and deep-sea environment,and relation with the submarine hydrothermal fluids.