广西南丹县大厂矿田地球物理找矿方法示范

大厂矿田主要矿床的地质特征有其特殊性,即碳质页岩分布极广。以往该矿田的地球物理找矿研究在方法的投入、资料的解释等诸多方面存在不足,导致找矿效果并不理想。文章认为,选择抗干扰能力强、勘探深度大的地球物理新的技术方法,并采用较为先进的定量解释手段,对异常体进行客观的评价,是取得好的找矿效果的关键。研究结果提出,大厂矿田物探找矿应以主动源大功率电磁法及地下物探方法组合的地球物理方法。

Demonstration of geophysical prospecting in the Dachang ore field of Nandan County, Guangxi

The main deposit in the Dachang ore field, where the existing geophysical prospecting has its shortages in the aspects including the application of method, data explanation etc. , which resulted in unideal prospecting, has its particularity of widespread carbonaceous shale. It has believed in this article that the keys to an ideal prospecting effect are choosing new technical method with high capability of antijamming and deep exploratory competence, applying more advanced quantitative explanation, as well as objective evaluation to anomaly body. The research results show that the geophysical prospecting which combines main drive-source high-power electromagnetic method with underlying geophysical prospecting should be applied in the Dachang ore field.