摘要
文章通过分析原疃金矿床中黄铁矿的标型特征,揭示出矿床为岩浆期后热液成因且具有逆向分带性。指出这种特征与矿床规模有一定相关性,对找寻评价矿床具一定意义。
The vertically belted gold deposit in Yuantuan has been found through a research on the typomor- phic characteristic of pyrite.The correlation of between the pyroelectric conductance type,absorption peak value of infrared spectrum of pyrite and the deposit scale is important to prospect and evaluate the deposit.The typomorphic characteristics,acted as indications of the rich ore belt,are fine grained pyrite,a large pentagonal dodecahedrons,complex crystal faces,high level of impurity elements of Gu,Pb,Zn and high level of Ag as well as S/F>2.The data of δS^(34)shows that the gold deposit be- longs to the postmagrnatic hydrothermal origin,that the ore-forming element mainly came from new sulphur source:a kind of hydrothermal solution formed in deep part which has transformed granite, and has been transformed by seepage groundwater.
出处
《江苏地质》
1991年第3期183-186,共4页
Jiangsu Geology
