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Application research of iron ore resources exploration using remote sensing and high precision magnetic method in Isabela, the Philippines

机译:遥感和高精度磁法在菲律宾伊莎贝拉邦铁矿石资源勘查中的应用研究

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In order to search for new prospect areas of iron ore resources in Isabela, the Philippines, the comprehensive technologies of remote sensing and high precision magnetic method are applied, which can combine the macro-characteristics of remote sensing with the detailed detection of geophysics. Remote sensing geological characteristics, including the linear structures, the ring structures and the linear-ring structure combination are analyzed in emphasis. In addition, the high-precision magnetic measurement is carried out in the geophysical survey area. At last, by analyzing the distribution of the inferred magnetic body in the geophysical survey area and the relationship between the linear-ring structure combination and the two known iron ore occurrences, the prospecting model is established. In the study area, northwest or northeast trending faults combined with ring structures are beneficial to the mineralization, which is verified in the known iron ore occurrences. Five target areas which have similar metallogenic conditions as known iron ore occurrences are predicted depending on the model. It is proposed that further work should be done within 8 kilometers along the northeast side of the northwest trending piedmont regional fault and those hydrothermal deposits which correlate with intermediate intrusive rocks should be put emphasis upon.
机译:为了在菲律宾的伊莎贝拉(Isabela)寻找铁矿石资源的新勘探领域,应用了遥感和高精度磁方法的综合技术,该技术可以将遥感的宏观特征与详细的地球物理学方法相结合。重点分析了线性结构,环形结构和线性-环形结构组合等遥感地质特征。另外,在地球物理调查区域中进行高精度的磁测量。最后,通过分析推断的磁性体在地球物理勘探区的分布以及线性环结构组合与两种已知铁矿的关系,建立了找矿模型。在研究区,西北或东北向断裂与环形构造相结合有利于成矿作用,这一点已在已知铁矿石中得到证实。根据模型,预测了五个与已知铁矿石成矿条件相似的成矿条件的目标区域。建议在西北走向的山前区域断层东北侧,在8公里以内做进一步的工作,并强调那些与中间侵入岩有关的热液矿床。

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