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在普查找矿工作中,对选出的有利区段和发现的矿点进行找矿评价(以下简称评价)是找矿中的重要一环,这一环做好了,就会事半功倍;如做不好就会使有望矿点不能迅速得以发现甚至得出否定的结论,无望矿点不能迅速给以否定并消耗掉大量的人力物力。对金矿来说,由于其不具备直接的可见性,评价的难度也就较高。目前,我国的地质队伍在评价金矿点时多半还是使用传统的方法:挖探槽,取样(地质样)分析,然后打钻。这种方法不仅周期长、投资大,而且对成矿条件和规律很难有透彻的认识,评价结果也往往不可靠,从而产生一系列的不良后果。笔者根据在胶东的工作,对主要的金矿类型(蚀变岩型)提出了“构造—岩矿—化探”三位一体的评价方法。欢迎从事地
In the census prospecting work, the prospecting and evaluation of the selected favorable sections and discovered ore spots (hereinafter referred to as evaluation) is an important part of prospecting. If this ring is completed, it will do more with less; Not good will make the hope that the mine can not be quickly found or even come to a conclusion negative, hopeless ore can not be quickly denied and consumed a lot of manpower and resources. For gold mines, because they do not have the direct visibility, the evaluation is also more difficult. At present, most of the geologic teams in our country use the traditional methods when evaluating gold deposits: digging trenches, sampling (geological samples), and drilling. This method is not only long-term, large investment, but also difficult to fully understand the metallogenic conditions and laws, evaluation results are often unreliable, resulting in a series of adverse consequences. Based on the work in Jiaodong, the author puts forward a trinity evaluation method of “tectonics-rock ore-geochemical exploration” for the major gold types (altered rock type). Welcome to work