卢文姬, 孔祥超, 张永三, 蓝信杰, 王明波, 付世兴, 张其凯. 云南勐海地区1:5万水系沉积物地球化学特征及找矿预测[J]. 地质与资源, 2024, 33(2): 169-177, 168. DOI: 10.13686/j.cnki.dzyzy.2024.02.005
    引用本文: 卢文姬, 孔祥超, 张永三, 蓝信杰, 王明波, 付世兴, 张其凯. 云南勐海地区1:5万水系沉积物地球化学特征及找矿预测[J]. 地质与资源, 2024, 33(2): 169-177, 168. DOI: 10.13686/j.cnki.dzyzy.2024.02.005
    LU Wen-ji, KONG Xiang-chao, ZHANG Yong-san, LAN Xin-jie, WANG Ming-bo, FU Shi-xing, ZHANG Qi-kai. GEOCHEMICAL CHARACTERISTICS OF 1:50 000 STREAM SEDIMENT SURVEY AND PROSPECTING PREDICTION IN MENGHAI AREA, YUNNAN PROVINCE[J]. Geology and Resources, 2024, 33(2): 169-177, 168. DOI: 10.13686/j.cnki.dzyzy.2024.02.005
    Citation: LU Wen-ji, KONG Xiang-chao, ZHANG Yong-san, LAN Xin-jie, WANG Ming-bo, FU Shi-xing, ZHANG Qi-kai. GEOCHEMICAL CHARACTERISTICS OF 1:50 000 STREAM SEDIMENT SURVEY AND PROSPECTING PREDICTION IN MENGHAI AREA, YUNNAN PROVINCE[J]. Geology and Resources, 2024, 33(2): 169-177, 168. DOI: 10.13686/j.cnki.dzyzy.2024.02.005

    云南勐海地区1:5万水系沉积物地球化学特征及找矿预测

    GEOCHEMICAL CHARACTERISTICS OF 1:50 000 STREAM SEDIMENT SURVEY AND PROSPECTING PREDICTION IN MENGHAI AREA, YUNNAN PROVINCE

    • 摘要: 勐海地区处于临沧-勐海(岩浆弧)Fe-Pb-Zn-Au-Ag-Sn-Sb-Ge-REE矿带, 具有较好的找矿前景. 在勐海地区1:5万水系沉积物测量基础上, 对区内29种元素分布特征、元素相关性、地球化学参数特征研究, 圈定了5个组合异常和13个综合异常. 其中, Ce-La-Y-Zr综合异常具有较好找矿前景; Au、As、Sb、Hg、W、P等元素离散程度较高, 元素局部较富集, 具有成矿的可能性. 结合水系沉积物测量成果, 圈定找矿远景区2处, 为下一步找矿工作提供了地球化学依据.

       

      Abstract: Menghai area is located in Lincang-Menghai (magmatic arc) Fe-Pb-Zn-Au-Ag-Sn-Sb-Ge-REE metallogenic belt, with a good prospecting potential. Based on the regional 1:50 000 stream sediment survey, the distribution characteristics, element correlation and geochemical parameter characteristics of 29 elements are studied, and 5 composite anomalies and 13 comprehensive anomalies are delineated in the area. Among them, the Ce-La-Y-Zr comprehensive anomaly has a good prospecting potential. The elements of Au, As, Sb, Hg, W and P are highly dispersed and locally enriched, with possibility of mineralization. Combined with the stream sediment survey results, 2 prospecting potential areas are delineated, which may provide geochemical basis for the next prospecting work.

       

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