五莲县七宝山多金属矿矿化特征及地球物理地球化学特征
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摘要
五莲县七宝山多金属矿位于五莲-胶南成矿带,是山东省重点勘查区和有色金属调查评价区,开展了大量工作,系统总结其多金属矿矿化特征,分析其地球物理、地球化学特征,将为开展外围找矿工作提供参考。通过总结五莲七宝山地区的重力异常特征、航磁异常特征、岩(矿)石物性特征以及地球化学特征,以及对杏山峪和红石岗矿段高精度磁测及激电中梯资料的分析对比,提出七宝山地区低阻、低磁异常带,高低阻过渡带、正负磁异常接触带附近,是找矿的重要地球物理特征标志。地球化学资料显示该区为Cu、Au、Ag等元素构成的近圆形高背景区与七宝山火山机构中心的次火山杂岩体分布范围基本一致,其他异常与已发现的多金属矿床在位置上完全吻合,说明化探异常具有效性。
Qibaoshan polymetallic deposit in Wulian county locates in Wulian-Jiaonan metallogenic belt,which is the key investigation area and nonferrous metal investigation and evaluation area of Shandong province. Through summarizing mineralization characteristics,geophysical characteristics and geochemical characteristics have been analyzed. It will provide some references for carrying out external prospecting work. In this paper,characteristics of gravity anomalies,aeromagnetic anomalies,petrographic characteristics and geochemical characteristics in Qibaoshan area in Wulian county have been introduced. Based on analysis and comparison of high-precision magnetic measurement and the information of the middle-ladder in Xingshanyu section and Hongshanggang section,it is regarded that low resistance and low magnetic anomaly zones,high and low resistance transition zones,and the vicinity of the positive and negative magnetic anomaly zone are important geophysical characteristic marks for prospecting. As showed by geochemical data,it is regarded that the distribution of Cu,Au,Ag and other elements in the near-circular high background area is consistent with that of the subvolcanic complex in the center of Qibaoshan volcanic system. Other anomalies are consistent with the discovered polymetallic deposit in the location. It is indicated that geochemical anomalies are effective.
Qibaoshan polymetallic deposit in Wulian county locates in Wulian-Jiaonan metallogenic belt,which is the key investigation area and nonferrous metal investigation and evaluation area of Shandong province. Through summarizing mineralization characteristics,geophysical characteristics and geochemical characteristics have been analyzed. It will provide some references for carrying out external prospecting work. In this paper,characteristics of gravity anomalies,aeromagnetic anomalies,petrographic characteristics and geochemical characteristics in Qibaoshan area in Wulian county have been introduced. Based on analysis and comparison of high-precision magnetic measurement and the information of the middle-ladder in Xingshanyu section and Hongshanggang section,it is regarded that low resistance and low magnetic anomaly zones,high and low resistance transition zones,and the vicinity of the positive and negative magnetic anomaly zone are important geophysical characteristic marks for prospecting. As showed by geochemical data,it is regarded that the distribution of Cu,Au,Ag and other elements in the near-circular high background area is consistent with that of the subvolcanic complex in the center of Qibaoshan volcanic system. Other anomalies are consistent with the discovered polymetallic deposit in the location. It is indicated that geochemical anomalies are effective.
引文
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[14]贺春艳,郭鹏,郭国强.综合物探在山东省招远市原疃地区金矿找矿中的应用[J].山东国土资源,2017,33(12):49-54.
[15]张叶鹏,王红,黄朝宇,等.物探方法在深边部找矿中的有效性探讨——以浏阳市七宝山铜锌矿区为例[J].物探与化探,2016,40(4):695-700.
[16]焦方谦,赵新生,陈川.激电异常解释中金属因素的应用[J].物探与化探,2013,37(5):848-852.
[2]田乃风,张帆,高宗军,等.山东五莲七宝山铜及多金属矿床成矿地质特征及找矿方向[J].山东国土资源,2011,27(4):8-11.
[3]高艳芳,李俊英,陈军威,等.地球化学勘查数据迭代处理的可视化及结果分析[J].物探与化探,2016,40(5):1021-1025.
[4]龚红蕾,张仲猛,师淑娟,等.基于Map GIS组件技术批量绘制多元素化探剖面图[J].物探与化探,2016,40(6):1222-1226.
[5]李鹏宇,石文杰,魏俊浩,等.青海省兴海县某地区铜多金属找矿潜力评价——基于1∶5万土壤化探数据处理与异常信息提取[J].物探与化探,2017,41(2):194-202.
[6]闫维华,刘永锋,游连强.综合物探方法在黔西北某铅锌矿勘查中的应用[J].物探与化探,2016,40(4):688-694.
[7]蒋金明,沙元成,文亮先,等.江西瑞昌市仙姑台铜多金属矿综合勘查模型[J].物探与化探,2015,39(6):1104-1112.
[8]任喜荣,赵国良,邓辉,等.综合物探方法在鸭子沟铜多金属矿勘查上的应用[J].物探与化探,2015,39(5):885-890.
[9]郭国强,贺春艳,刘洪波,等.“焦家式”蚀变岩型深部金矿地质—地球物理模型——新技术新方法在金矿深部找矿中的应用[J].山东国土资源,2017,33(2):21-27.
[10]李星,王峰,罗大锋,等.综合物探方法在云南江城隐伏铅锌矿勘查中的应用[J].物探与化探,2015,39(6):1119-1123.
[11]王少帅,邓国武,汪冰,等.高精度磁测与激电测深在航磁异常查证中的应用[J].物探与化探,2016,40(5):916-922.
[12]王英超,王晓辉,王明明,等.地球物理方法在智利第一大区南部X矿区的应用[J].物探与化探,2014,38(5):901-909.
[13]杨鑫,冉军林.蒋家山沟金矿综合物、化探的找矿效果[J].物探与化探,2016,40(1):40-45.
[14]贺春艳,郭鹏,郭国强.综合物探在山东省招远市原疃地区金矿找矿中的应用[J].山东国土资源,2017,33(12):49-54.
[15]张叶鹏,王红,黄朝宇,等.物探方法在深边部找矿中的有效性探讨——以浏阳市七宝山铜锌矿区为例[J].物探与化探,2016,40(4):695-700.
[16]焦方谦,赵新生,陈川.激电异常解释中金属因素的应用[J].物探与化探,2013,37(5):848-852.