论文部分内容阅读
继近几年来苏联使用的称为“CHIM—10”的野外勘探技术以来,一种基于电化学原理的利用原有设备的方法已用于寻找贱金属硫化物。这个方法利用了金属离子的正电性质,当大片土壤由于输入直流电而被人工电离时,靠近矿化带的潮湿土壤剖面中的金属离子势必会朝大功率大间隔电极系中的阴极运动。首先,进行了实试室模型试验,试验取得了振奋人心的结果。随后,组装了野外试验设备并用于在野外检验它的有效性。试验土壤剖面位于卡纳塔克邦哈桑县Aladahalli地区的贱金属硫化物带上,这里的矿床地质情况是众所周知的。在野外试验中获得的结果相当令人满意,并且与已知的地质情况完全一致。然而,在对该系统不同的可变参数做了必要的改正以后,仍然要对那些数据做细致的评价。以标准化和开发应用为目的,改进方法的工作正在进行,以便定性和定量评价给定地区的隐伏贱金属矿床,尤其是在那些常规地球化学勘查方法不适用的地方。本文论及该方法的细节并讨论在野外试验中所获得的结果。
Following the field exploration technology known as “CHIM-10” used by the Soviet Union in recent years, an electrochemical-based approach using existing equipment has been used to find base metal sulphides. This method exploits the positive charge of metal ions. When large soil is artificially ionized due to the input DC current, the metal ions in the wet soil profile near the mineralization tend to move toward the cathodes in the high-power, large-spacing electrode system. First of all, a real laboratory model test was conducted, and the experiment has yielded encouraging results. Subsequently, field test equipment was assembled and used to verify its effectiveness in the field. The test soil profile is located on the base metal sulphide zone in the Aladahalli area of Hassan County, Karnataka, where the geology of the deposit is well known. The results obtained in the field trials are quite satisfactory and are completely consistent with the known geological conditions. However, after the necessary corrections have been made to the different variable parameters of the system, a detailed evaluation of those data is still to be made. Work is being done to standardize and develop applications to improve methods to qualitatively and quantitatively evaluate buried base metal deposits in a given area, especially where conventional geochemical prospecting methods are not applicable. This article deals with the details of this method and discusses the results obtained in field trials.