山东省海阳市土堆-沙旺地区金矿激电异常和电阻率分布规律探讨
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摘要
土堆-沙旺金矿区位于胶莱盆地东北缘,与蓬家夼、发云夼、辽上、西涝口等矿床同处于郭城断裂带内。为缩小找矿靶区,发现有利的成矿区段,在郭城镇北朱村与龙口村之间进行激电测量工作。通过区内激电测量和可控源音频大地电磁法测量,圈出激电异常带7条。从可控源音频大地电磁法异常中可以明显看到区内的各种断裂构造,断裂构造产状及相互间的关系,能较好的显示了岩体和地层界限,因此可控源音频大地电磁法异常也可以作为区内一种找矿标志。
The Tudui-Shawang gold deposit is located in the northeastern margin of the Jiaolai Basin,along with the Pengjiakuang,Fayunkuang,Liaoshangand Xilaokou ore deposits in the Guocheng fault zone.In order to narrow the prospecting target areaand find a favorable metallogenic area,we carried out IP measurement between Bei Zhu and Long Kou village in Guo Cheng town.By means of in situ IP measurement and controlled source audio magnetotelluric measurement,we circled the IP anomaly with 7 and find the various faults structure,crack occurrence and mutual relation between.It scan also show the boundaries of rock mass and stratum.Accordingly,the controlled source audio frequency magnetotelluric method can also be used as a kind of prospecting mark.
The Tudui-Shawang gold deposit is located in the northeastern margin of the Jiaolai Basin,along with the Pengjiakuang,Fayunkuang,Liaoshangand Xilaokou ore deposits in the Guocheng fault zone.In order to narrow the prospecting target areaand find a favorable metallogenic area,we carried out IP measurement between Bei Zhu and Long Kou village in Guo Cheng town.By means of in situ IP measurement and controlled source audio magnetotelluric measurement,we circled the IP anomaly with 7 and find the various faults structure,crack occurrence and mutual relation between.It scan also show the boundaries of rock mass and stratum.Accordingly,the controlled source audio frequency magnetotelluric method can also be used as a kind of prospecting mark.
引文
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[11]韩兰臻,赵德强,王之跃,等.基于ANSYS的采动围岩视电阻率动态变化模拟[J].山东国土资源,2016,32(4):70-73
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[14]张英梅,孟祥伟,陈昆明.激电中梯和激电测深在车辋铜铅多金属矿中的应用[J].山东国土资源,2016,32(4):57-60.
(1)山东省第一地质矿产勘查院,山东省海阳市土堆、沙旺矿区深部及外围金矿补充详查报告,2013年。
[2]苏旭亮.山东平度旧店金矿田帚状构造成因及控矿特征分析[J].地质学刊,2014,38(2):227-231.
[3]王巧云,刘汉栋,陈建平,等.山东焦家金成矿带三维地质建模及成矿预测[J].地质学刊,2014,38(3):412-420.
[4]李洪奎,李军,禚传源,等.山东旧店金矿成因矿物学研究及其意义[J].山东国土资源,2016,32(3):1-9.
[5]沈远超,杨金中.胶东新型金矿——层间滑动角砾岩型金矿床[J].地质与勘探,2002,38(2):11-14.
[6]杨金中,赵玉灵,沈远超,等.可控源音频大地电磁法在矿体定位预测中的应用——以山东省乳山市蓬家夼金矿床为例[J].地质科技情报,2000,19(3):107-102.
[7]曾庆栋,沈远超,刘铁兵,等.胶东牟平发云夼金矿区地球物理综合找矿研究[J].湘潭矿业学院学报,2002,16(4):17-19.
[8]鲁世朋,王国征,钱春东.莱阳盆地北缘西涝口金矿区北接触带激电异常特征及成矿潜力评价[J].山东国土资源,2010,26(4):13-17.
[9]傅良魁.电法勘探教程[M].北京:中国地质出版社,1987:17-19.
[10]杨天春,吕绍林,姚成华,等.金属因素在激电异常评价中的应用[J].物探与化探,2003,27(4):305-306.
[11]韩兰臻,赵德强,王之跃,等.基于ANSYS的采动围岩视电阻率动态变化模拟[J].山东国土资源,2016,32(4):70-73
[12]李金铭.激发极化法方法技术指南[M].北京:地质出版社,2004.
[13]罗延钟.评价激电异常的新方法[J].国外地质勘探技术,1982,(1):18-25.
[14]张英梅,孟祥伟,陈昆明.激电中梯和激电测深在车辋铜铅多金属矿中的应用[J].山东国土资源,2016,32(4):57-60.
(1)山东省第一地质矿产勘查院,山东省海阳市土堆、沙旺矿区深部及外围金矿补充详查报告,2013年。