论文部分内容阅读
哈萨克斯坦的一些矿床实例表明,岩矿石的激发极化特性主要取决于矿床中是否含有碳质物,而激发极化异常值则依赖于碳质物的物质成份及具有电子导电性矿物的相互结构特征。但在某些场合下,围岩中硫化矿物与磁铁矿物的含量对激发极化值没有影响。对赋存在黑色页岩带的细脉浸染状硫化矿物型的金矿上也观测到了类似的现象。尽管黄铁矿、毒砂及碳质物等电子导电矿物广泛分布,但有时岩矿石标本的激发极化数值很小。
Some examples of deposits in Kazakhstan show that the excitation polarization of rock ore depends mainly on whether the deposit contains carbonaceous matter, while the value of the anomalous excitation anomalies depends on the material composition of the carbonaceous material and the mutual structure of the electronically conductive mineral feature. However, in some cases, the content of sulphide minerals and magnetite minerals in the surrounding rock has no effect on the excitation polarization. A similar phenomenon has also been observed on finely veined sulphide mineralized gold deposits hosted in black shale zones. Despite the wide distribution of electron conductive minerals such as pyrite, arsenopyrite and carbonaceous matter, the values of excitation polarization of rock ore specimens are sometimes small.