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自然重砂测量是矿产勘查的最直接手段,在实践中能够有效揭示找矿线索。吉林省开山屯铬铁矿床具有悠久的开采历史,通过对与基性—超基性岩密切相关的开山屯铬铁矿床的标型矿物,即铬铁矿、黄铁矿、自然金、辰砂等自然重砂矿物的统计分析,异常的空间分布特征以及空间组合特征,全面展示了开山屯铬铁矿床自然重砂矿物异常的规律性。并结合该矿床化探异常的综合研究,确定了铬铁矿重砂异常的矿致性质以及重要的找矿指示意义。同时建立起开山屯铬铁矿床的重砂找矿模式,并对模型进行了初步探讨。
Natural heavy sand measurement is the most direct means of mineral exploration, in practice can effectively reveal the clues. The Kaishantun chromite deposit in Jilin Province has a long history of mining. By analyzing the mineralization of the Karstatun chromite deposit, which is closely related to the basic-ultrabasic rocks, namely chromite, pyrite, natural gold, Cinnabar and other natural sand mineral statistical analysis, the spatial distribution of anomalous characteristics and spatial characteristics of the combination of a comprehensive display of the Kaishan Tu chromite natural heavy sand mineral regularities. Combined with the comprehensive study of geochemical anomalies in this deposit, the ore-induced properties of heavy gravel anomalies in chromite and the significance of important ore-prospecting indicators have been determined. At the same time, a model of heavy sand mineralization was established for the Kaishantun chromite deposit and the model was discussed.