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西藏邦卓玛地区土壤地球化学特征及找矿预测

发布时间:2018-12-12 11:36
【摘要】:本文通过在西藏邦卓玛地区开展的1∶10000土壤地球化学测量工作,运用元素的变化系数、元素富集离散特征对邦卓玛地区土壤地球化学测量的12种微量元素进行地球化学统计分析,论述了12种微量元素的成矿潜力,得出Au、Ag、W、Pb、Sb 5种元素具有较大的成矿潜力。并通过相关分析、因子分析确立了测区内元素组合特征,共划分了三组主成矿元素组合(即Au-Ag-Cu-Bi-W;PbSn;Sb),运用衬值异常法在区内圈定组合异常,结果显示,组合异常明显,异常套合较好,大体呈NW向串珠状展布。根据组合衬值异常叠加,在研究区内圈定了4个重点靶区,为下一步在该区内寻找Au、Ag、Sb、W、Pb等多金属矿提供了理论依据。
[Abstract]:Based on the geochemical survey of 1: 10000 soil carried out in Bangzoma region, Tibet, the variation coefficient of elements is used. The geochemical statistical analysis of 12 trace elements in soil geochemistry survey in Banjoma area was carried out by element enrichment and discrete characteristics. The metallogenic potential of 12 trace elements was discussed, and Au,Ag,W,Pb, was obtained. The five elements of Sb have great metallogenic potential. Through correlation analysis, factor analysis established the characteristics of element assemblage in the measured area, and divided three groups of major metallogenic element assemblages (i.e. Au-Ag-Cu-Bi-W;PbSn;). Sb), uses the contrast anomaly method to delineate the combinatorial anomaly in the region. The results show that the combination anomaly is obvious and the abnormal casing is good, and it is generally distributed in the shape of NW bead. According to the anomalous stacking of the combined contrast value, four important target areas are delineated in the study area, which provides a theoretical basis for the next step to search for Au,Ag,Sb,W,Pb and other polymetallic ore deposits in this area.
【作者单位】: 桂林理工大学地球科学学院;武警黄金第十一支队;
【基金】:中国地质调查局项目(编号1212011121236) 武警黄金指挥部项目(编号DZKY2016-186) 国家重点研发计划项目(编号2016YF060063-3)联合资助
【分类号】:P632.1


本文编号:2374487

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