| 闽北邵武地区水系沉积物地球化学特征及找矿预测 |
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| 引用本文：韩志坤,栗克坤,张青松,张静杰,闫晓博,靳乾峰,蒋济勇,刘增政.2022.闽北邵武地区水系沉积物地球化学特征及找矿预测[J].地球学报,43(3):411-420. |
| DOI：10.3975/cagsb.2022.042703 |
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| 基金项目:中国地质调查局地质调查项目(编号: DD20190816) |
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| 中文摘要:邵武地区位于浙中—武夷山(隆起)W-Sn-Mo-Au-Ag-Pb-Zn-Nb-Ta-(叶腊石)-萤石成矿带(Ⅲ-81), 闽西北萤石矿成矿亚带(Ⅳ-1)的西南部, 具有较好的找矿前景。本次综合研究元素的地球化学特征参数, 元素R聚类相关性、单元素异常特征等, 表明F、Au、Pb、Zn、Nb、Ta等元素具有一定的找矿潜力, 并圈定单元素异常652个, 综合异常26处; 依据水系沉积物异常、筛选、评序及主要异常解释推断的成果, 结合区内成矿地质构造背景, 圈定村尾—下炉铅锌矿、吴家塘—南山下萤石矿、祝岭—洋半天萤石矿和铅锌矿、半岭—张厝萤石矿找矿预测区4处, 为该区下一步找矿工作提供了勘查方向和重要参考; 优选出半岭—张厝萤石矿找矿预测区, 通过野外路线地质调查、槽探等手段进行了异常查证, 得到了较好的找矿预期效果。 |
| 中文关键词:水系沉积物测量 地球化学 半岭—张厝萤石矿找矿预测区 邵武 |
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| Geochemical Characteristics and Prospecting Prediction of Stream Sediments in Shaowu Area, Northern Fujian Province |
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| Abstract:Shaowu area is located in the W-Sn-Mo-Au-Ag-Pb-Zn-Nb-Ta-(pyrolytic)-fluorite metallogenic belt (Ⅲ-81) of the Central Zhejiang–Wuyishan (uplift), and in the southwest of the fluorite metallogenic sub-belt (Ⅳ-1) of the northwest Fujian, which has good prospecting prospects. In this study, the geochemical characteristics of elements, R clustering correlation, anomaly characteristics of single element, etc., show that F, Au, Pb, Zn, Nb, Ta and other elements have a certain prospecting potential, and there are 652 anomalies of order elements and 26 comprehensive anomalies. On the basis of the anomalies of stream sediments, screening and evaluation sequence and main anomaly interpretation results, combined with background of the metallogenic geologic structures, 4 areas were delineated, including Cunwei–Xialu lead-zinc mine, Wujiatang–Nanshanxia fluorite ore, Zhuling–Yanbantian fluorite ore and lead-zinc mine, and Banling–Zhangcuo fluorite ore prospecting prediction, for the prospecting direction and the next step prospecting work providing important references; The prospecting prediction area of Banling–Zhangcuo fluorite deposit were optimized, and the anomaly were verified by means of geological survey and trough exploration, and better prospecting results were obtained. |
| keywords:stream sediment survey geochemistry features Banling–Zhangcuo prospecting target area Shaowu |
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