有机质萃取东川铜矿紫色泥砂质白云岩中铜的实验研究  

EXPERIMENTAL STUDY OF ORGANIC EXTRACTION FOR COPPER FROM THE PURPLE ARGILLACEOUS-ARENACEOUS DOLOMITE IN DONGCHUAN

作　　者：赵劲松[1] 赵斌[1] 张重泽[1] 

机构地区：[1]中国科学院广州地球化学研究所

出　　处：《大地构造与成矿学》1996年第3期238-245,共8页Geotectonica et Metallogenia

基　　金：中国科学院矿床地球化学开放实验室基金

摘　　要：对云南东川铜矿的紫色泥砂质白云岩进行了有机质萃取铜的实验。研究结果表明，有机质溶液从白云岩中萃取出的铜浓度大大低于矿区主要矿石沉淀所要求的最低浓度。白云岩中大量Ｃａ、Ｍｇ、Ｋ、Ｆｅ、Ｍｎ离子的存在，制约了成矿流体中有机和无机络合剂对岩石中铜的萃取能力。实验结果在一定程度上削弱了对白云岩是矿源岩说法的支持。Organic extraction was conducted for copper from the purple argillaceous-arenaceous dolomite in the Dongchuan copper mine.The results show that concentration of extracted copper is much lower than the minimum concentration required to give rise copper precipitation in the deposit. The ability of organic and inorgtinic ligands in the ore-forming solution to extract copper from the rocks is greatly reduced by the abundant Ca,Mg,K,Fe and Mn in dolomite.The concept that the dolomite may have acted as the source rock of copper is thus questioned,at least to some extent,by this experiment.

关 键 词：有机质 实验研究 铜矿床 白云岩 泥砂质 

分 类 号：P618.410.4[天文地球—矿床学]