海连富,陶瑞,张晓军,刘安璐,刘金科,魏俊浩,白金鹤,李海峰

• 1:中国地质大学(武汉)资源学院
• 2:宁夏回族自治区矿产地质调查院
• 3:宁夏回族自治区矿产地质研究所
• 4:中国地质大学(武汉)逸夫博物馆

摘要(Abstract)：

卫宁北山地区位于北祁连造山带东段，是宁夏境内金多金属矿床成矿条件最好、成矿迹象最多的地区之一，其中金场子金矿是该地区已知最大的金矿床。在归纳该区近年来找矿成果基础上，对金场子金矿床控矿因素、找矿标志和深部矿化规律进行了总结，构建了基于地-物-化多要素的综合找矿模型，并对矿区及外围、深部找矿靶区进行了圈定。研究表明：金场子金矿控矿因素主要为构造和地层，其中控矿构造表现为东西向断裂、北东向断裂及其次生裂隙为主，控矿地层表现为特定的地层层位及岩性组合。赤铁矿-褐铁矿化、硅化、绢云母化、黄铁矿化、黄钾铁矾化等围岩蚀变，Au-Ag-As-Sb化探组合异常以及中电阻率、中-高极化率地球物理异常为该区主要找矿标志。综合控矿因素和找矿标志，构建了矿区金矿综合找矿模型，并以此圈定地表找矿靶区6处，并进一步根据矿化深部变化规律圈定深部找矿靶区3处。通过对矿区及外围靶区开展地球化学剖面测量以及深部靶区钻探工作，验证了此次靶区圈定的合理性，为今后该地区找矿工作起到了很好的示范作用。

关键词(KeyWords)： 卫宁北山地区;金场子金矿;控矿因素;找矿标志;找矿靶区;成矿预测

Abstract:

Keywords:

基金项目(Foundation): 宁夏自然科学基金项目(2022AAC03662;2021AAC03447);; 宁夏重点研发计划项目(2018BFG02013;2021BEG03003);; 宁夏青年科技人才托举工程(JTGC2019023)

作者(Author): 海连富,陶瑞,张晓军,刘安璐,刘金科,魏俊浩,白金鹤,李海峰

DOI: 10.19509/j.cnki.dzkq.2022.0250

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