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以新疆东天山石英滩金矿为例,研究危机型矿山资源评价与预测的理论和方法,以期为地质工作者进行危机型矿山资源评价工作提供思路。已知矿床石英滩金矿与其外围预测区东北夼在成矿条件、控矿构造及岩石地球化学特征等方面有很大的相似性,因此采用相似类比理论对预测区进行资源评价。根据已掌握的石英滩金矿床原生晕叠加模式,建立已知矿床的地球化学评价指标,并利用这些指标对异常区东北夼进行成矿预测。结果表明,预测区地表原生晕为前缘的概率是60%,为中部的概率是40%,由此判断深部有隐伏矿的可能。
Taking the quartz rock gold deposit in East Tianshan of Xinjiang as an example, this paper studies the theories and methods of evaluating and forecasting the crisis type of mine resources, with a view to providing ideas for geological workers to evaluate the crisis type mine resources. It is known that the Shuiyingtan gold deposit has similarities with the ore-forming conditions, ore-control structure and lithogeochemical characteristics of the northeastern marina in its peripheral prediction area. Therefore, the similar analogy theory is used to evaluate the resources of the forecast area. According to the mastered primary halo superimposition model of the Shiyingtan gold deposit, the geochemical evaluation indexes of the known deposits are established, and the ore-forming prediction of the northeastern sandwiched area in the anomaly area is predicted by using these indexes. The results show that the probability of the surface primary halo to the leading edge in the prediction area is 60% and that in the middle is 40%, so as to determine the possibility of a hidden mine in the deep area.