格陵兰东部Jameson Land盆地Quensel Bjerg矿区铜铅锌多金属矿床成矿流体特征及成因探讨

发布时间：2018-04-14 06:09

本文选题：矿床地球化学 + 矿床成因　；参考：《地球化学》2017年02期

【摘要】：格陵兰是世界上重要的巨型多金属成矿带之一,Jameson Land盆地位于该成矿带的东部,该区Cu、Pb、Zn等金属地表矿化特征明显、矿化强度大,分布范围广、厚度大。区内矿化点也较多,已发现近6~10个铜、铅或锌矿化层。Quensel Bjerg矿区位于Jameson Land盆地的东部。本文通过系统的野外地质调查、流体包裹体显微测温以及C-O、S稳定同位素分析,认为Quensel Bjerg矿区成矿流体性质为中低温、中低盐度流体,流体来源于大气降水和地层水(海水)的混合,碳来源于海相碳酸盐岩的溶解,成矿物质来源于Ravnefjeld组页岩、围岩(灰岩)及下伏地层,该矿床属于沉积岩容矿的沉积-改造型层状铜铅锌多金属矿床。
[Abstract]:Greenland is one of the world's important giant polymetallic metallogenic belt, located in the eastern part of the Jameson Land basin metallogenic belt, the area of Cu, Pb, Zn and other metal surface mineralization characteristics, mineralization intensity, wide distribution, large thickness. Zone mineralization points are more, have been found near 6~10 copper or lead..Quensel Bjerg ZINC MINERALIZATION layer mining area is located in Jameson Land basin to the East. Through field geological survey system, fluid inclusions and C-O S analysis, stable isotope, ore-forming fluid properties that Quensel Bjerg is in low temperature, low salinity fluid, the fluid is from meteoric water and stratum water (sea water) mixed. Dissolved carbon derived from marine carbonate rocks, the ore-forming materials come from shale rock group Ravnefjeld (Hui Yan), and the underlying strata, the sedimentary deposit belongs to sedimentary hosted layered transformation type Cu Pb Zn polymetallic deposit.

【作者单位】：云南省核工业二0九地质大队;东华理工大学放射性地质与勘探技术国防重点学科实验室;开江县讲治镇人民政府;
【基金】：国土资源部2010年第二批国外矿产资源风险勘查专项基金(10214B012)
【分类号】：P618.2

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