摘要
本文通过辽东裂谷硫化物矿床中不同产状电气石的研究，揭示了不同环境内形成电气石矿物的标型、光性、成分、同位素组成、红外光谱与Ｘ衍射特征方面存在一定差异。不同物化条件下形成的电气石其演化系列表现在由近矿围岩到硫化物矿层电气石由富镁向富铁一镁过渡，从层状矿体到热液改造矿体电气石由铁镁向富钙一镁过渡。研究表明，电气石的形成与元古代早期海底火山喷发作用后引起的富硼热泉活动有关。依据电气石的微观特征，以层纹状电气石岩为标志，为面临闭坑的老矿山找到了可采矿体。
The results of this study show that different typomorphic characteristics,optical fea-ture,component,isotope constitution,infrared absorption spectrometry and X-ray diffraction pat-tern of tourmalines are related to their forming environments.From the adjacent host rock toward the layered sulfide ore,the tourmaline is transitional from Mg rich to Ca-Mg rich.As to the lay-ered ore and the reformed hydrothermal deposit,the tourmaline is transitional from FeMg rich to CaMg rich.The analytical result shows that tourmaline is related to the B-rich hot spring activi-ties after submarine volcanism of early Proterozoic.Based on the microscopic study according to the mark of laminated tourmaline-bearing rock the Kemi ore body was found in the almost abandoned old mine.
出处
《矿物岩石》
CAS
CSCD
1995年第4期62-71,共10页
Mineralogy and Petrology
关键词
电气石
系列矿物学
硫化物矿床
找矿意义
serial mineralogy of tourmaline,sulfide ore deposit,prospecting significance
