论文部分内容阅读
南澳奥林匹克坝铜-铀矿床的发现,是根据地质模式预测的结果。但该矿床在经过勘探之后,却证实原来设想的成矿模式并不符合客观实际。 1975年开始普查的地质依据是:玄武岩的氧化蚀变会使含铜的溶液形成层控的铜矿床。在此以前澳大利亚矿产资源局和南澳大利亚州的矿山能源局所完成的区域重力和磁测表明,在斯图尔特陆棚地区的深部可能会有玄武岩。西部采矿公司对重力和磁法异常作了解释,解译了遥感图象的线性特征。据此布置了二个钻孔,检查在上元古界覆盖区之下的基底中是否存在有利于成矿的玄武岩。
The discovery of the Olympic Dam copper-uranium deposit in South Australia is based on the prediction of the geological model. However, after the exploration of the deposit, it was confirmed that the original metallogenic model was not in line with objective reality. The geological basis for the census started in 1975 is that the oxidative alteration of basalts will cause copper-bearing solutions to form stratigraphic controlled copper deposits. Regional gravimetry and magnetic surveys previously completed by the Australian Bureau of Mineral Resources and the Bureau of Mines and Energy in South Australia have indicated that there may be basalts deep in the Stewart shelf area. Western mining companies interpreted gravity and magnetic anomalies and interpreted the linear features of remote sensing images. According to this, two boreholes were arranged to check whether there is a basaltic that favors mineralization in the basement below the area covered by the Proterozoic.