Application of EH4 Magnetotelluric Method in Ore-controlling Structure and Metallogenic Prediction of the Wulong Gold Deposit in Liaodong Peninsula
Received date: 2021-02-23
Revised date: 2021-07-26
Online published: 2021-12-17
Wulong gold deposit is the largest quartz vein type gold deposit in the Liaodong gold district.The accumulated proven gold resources are more than 80 tons with an average grade of 5.35×10-6.The fault structure is well developed and magmatic activity is widespread in the Wulong gold deposit，thus it has good metallogenic potential.Wulong gold deposit has been mined for many years，the gold reserve is reducing steadily，so it is urgent to find deep concealed gold resources.The physical properties of different rocks have been tested and analyzed in Wulong mining area，which show that their resistivities are significantly different，and they have the geophysical prerequisites for prospecting and exploration.EH4 magnetotelluric method is one of the advanced techniques in geophysical exploration system，especially in ore-control structure and metallogenic prediction.In this study，the EH4 magnetotelluric method was used，and sounding data acquisition and two-dimensional inversion calculations were carried out on the east and west sides of Wulong gold deposit.Three EH4 measuring lines of No.100，No.1000，and No.1050 were laid out on the east and west sides of the Wulong gold deposit.The lengths of these EH4 measuring lines are 1 000 m，800 m，and 800 m，respectively.Specifically，the line of No.100 on the east side is mainly used to detect the NNE-trending 100# fault，while the lines of No.1000 and No.1050 on the west side are mainly used to detect the NNE-trending Jixingou fault.The scalar TM mode was adopted in the EH4 test work in Wulong gold deposit.On the basis of the above work，we first check the original measurement data，then perform computer processing，and finally draw the EH4 2D inversion profile.The EH4 two-dimensional inversion profile has effectively identified the 100# fault and Jixingou fault on the east and west sides of the Wulong gold deposit with vertical extensions exceeding 1 000 m.In addition，field geological observations and tunnel or drilling projects showed that there is obvious gold mineralization on the surface and shallow parts of these fault zones，which indicated that these fault structures （100# fault and Jixingou fault） play an important role in the Wulong gold mineralization.The results of this study show that the EH4 magnetotelluric method is effective in the study of ore-controlling structure and metallogenic prediction in the Wulong gold deposit.The eastern，western and deep areas of the Wulong gold deposit have quite good prospecting potential，which points out the direction for the further prospecting.
Bing YU , Haicheng QIU , Changming YU , Qingdong ZENG , Qin DU , Jie YE , Jian-ping LI , Haitao CHEN . Application of EH4 Magnetotelluric Method in Ore-controlling Structure and Metallogenic Prediction of the Wulong Gold Deposit in Liaodong Peninsula[J]. Gold Science and Technology, 2021 , 29(5) : 637 -646 . DOI: 10.11872/j.issn.1005-2518.2021.05.032
| null | Du Qin，Xing Baoshan，Ye Jie，al et，2018.Application of the continuous conductivity observation system to prediction of deep prospecting prediction in the Wulong gold deposit［J］.Geology and Exploration，54（2）：332-343. |
| null | Gu Y C，Chen R Y，Li D T，al et，2018.Jurassic ca.160 Ma crustal remelting and Paleoproterozoic intrusive rock residues in the Liaodong Peninsula，East China：Evidence from in situ zircon U-Pb dating and Lu-Hf isotopic analysis［J］.Geological Journal，53（Supp.2）：174-188. |
| null | Huang Zhenhao，Li Zhaoyi，Shi Yuchun，al et，2015.The instruction function and analysis of mineralization potential for deep prospecting in Luowei ore mine from results of geophysical prospecting［J］.Gold Science and Technology，23（1）：53-60. |
| null | Liu J M，Zhao G C，Xu G，al et，2020.Structural control and genesis of gold deposits in the Liaodong Peninsula，northeastern North China Craton［J］.Ore Geology Reviews，125：103672. |
| null | Liu J，Zhang L J，Wang S L，al et，2019.Formation of the Wulong gold deposit，Liaodong gold province，NE China：Constraints from zircon U-Pb age，sericite Ar-Ar age，and H-O-S-He isotopes［J］.Ore Geology Reviews，109：130-143. |
| null | Shen Ping，Shen Yuanchao，Liu Tiebing，al et，2007.Application of stratagem EH4 system to prediction of hidden ore bodies［J］.Mineral Deposits，26（1）：70-78. |
| null | Shen Yuanchao，Shen Ping，Liu Tiebing，al et，2008.Prediction of hidden gold orebodies in depleted mines by the stratagem EH4 system［J］.Progress in Geophysics，23（1）：559-567. |
| null | Wang Y B，Yu B，Zeng Q D，al et，2019.Petrogenesis and tectonic setting of the Wulong two-mica monzogranite on Liaodong Peninsula，NE China：Constraints from zircon U-Pb and Hf-O isotopic data［J］.Geochemical Journal，53（4）：261-279. |
| null | Wang Y Z，Wang F，Wu L，al et，2018.（U-Th）/He thermochronology of metallic ore deposits in the Liaodong Peninsula：Implications for ore field evolution in northeast China［J］.Ore Geology Reviews，92：348-365. |
| null | Wang Zhiqiang，Zhifan Huhua，Chen Bin，al et，2020.The petrogenesis of the Early Cretaceous Sanguliu pluton in the Liao-dong Peninsula，NE China：Constrained from the trace-element modelling and Sr-Nd isotopes［J］.Acta Petrologica Sinica，36（12）：3683-3704. |
| null | Wei J H，Liu C Q，Tang H F，2003.Rb-Sr and U-Pb isotopic systematics of pyrite and granite in Liaodong gold province，North China：Implication for the age and genesis of a gold deposit［J］.Geochemical Journal，37（5）：567-577. |
| null | Wu F Y，Lin J Q，Wilde S A，al et，2005a.Nature and significance of the Early Cretaceous giant igneous event in Eastern China［J］.Earth and Planetary Science Letters，233（1/2）：103-119. |
| null | Wu F Y，Yang J H，Wilde S A，al et，2005b.Geochronology，petrogenesis and tectonic implications of Jurassic granites in the Liaodong Peninsula，NE China［J］.Chemical Geology，221（1/2）：127-156. |
| null | Xiao Shiye，Zhu Guang，Zhang Shuai，al et，2018.Structural processes and dike emplacement mechanism in the Wulong gold field，eastern Liaoning［J］.Chinese Science Bulletin，63（Supp.2）：3022-3036. |
| null | Yang Fengchao，Song Yunhong，Yang Jialin，al et，2018.SHRIMP U-Pb age and geochemical characteristics of granites in Wulong-Sidaogou gold deposit，East Liaoning［J］.Geotectonica et Metallogenia，42（5）：940-954. |
| null | Yang Jinhui，Wu Fuyuan，Luo Qinghua，al et，2004.Deformation age of Jurassic granites in the Dandong area，eastern China：40Ar/39Ar geochronological constraints［J］.Acta Petrologica Sinica，20（5）：1205-1214. |
| null | Yao Xiaofeng，Yan Tingjie，Lin Chenggui，al et，2021.New sight for gold forming system in Wulong deposit：Indicated by the distal Pb-Zn mineralization in hydrothermal breccia［J］.Acta Petrologica Sinica，37（6）：1883-1900. |
| null | Yu B，Zeng Q D，Frimmel H E，al et，2018.Genesis of the Wu-long gold deposit，northeastern North China Craton：Constraints from fluid inclusions，H-O-S-Pb isotopes，and pyrite trace element concentrations［J］.Ore Geology Revie-ws，102：313-337. |
| null | Yu B，Zeng Q D，Frimmel H E，al et，2020.The 127 Ma gold mineralization in the Wulong deposit，Liaodong Peninsula，China：Constraints from molybdenite Re-Os，monazite U-Th-Pb，and zircon U-Pb geochronology［J］.Ore Geology Reviews，121：103542. |
| null | Yu Bing，Zeng Qingdong，Xia Fan，al et，2020.Structural superimposed halo of the Wulong gold deposit in Liaoning Province［J］.Geology and Exploration，56（5）：898-914. |
| null | Zeng Qingdong，Chen Renyi，Yang Jinhui，al et，2019.The metallogenic characteristics and exploring ore potential of the gold deposits in eastern Liaoning Province［J］.Acta Petrologica Sinica，35（7）：1939-1963. |
| null | Zeng Qingdong，Shen Yuanchao，Liu Tiebing，al et，2004.Metallogenic perspective of Duolanasayi gold deposit，Xinjiang［J］.Gold Science and Technology，12（5）：1-5. |
| null | Zhang P，Kou L L，Zhao Y，al et，2020a.Genesis of the Wulong gold deposit，Liaoning Province，NE China：Constrains from noble gases，radiogenic and stable isotope studies［J］.Geoscience Frontiers，11（2）：547-563. |
| null | Zhang S，Zhu G，Liu C，al et，2018.Strike-slip motion within the Yalu River fault zone，NE Asia：The development of a shear continental margin［J］.Tectonics，37（6）：1771-1796. |
| null | Zhang S，Zhu G，Xiao S Y，al et，2020b.Temporal variations in the dynamic evolution of an overriding plate：Evidence from the Wulong area in the eastern North China Craton，China［J］.Geological Society of America Bulletin，132（9/10）：2023-2042. |
| null | Zhang Shuji，Liu Xinhui，Yang Shuanhai，2014.Geological characteristics of No.106 vein orebody in Jinlongshan gold mine，South Qinling Mountains［J］.Gold Science and Te-chnology，22（3）：7-14. |
| null | 杜琴，刑宝山，叶杰，等，2018.连续电导率观测系统在五龙金矿深部找矿预测中的应用研究［J］.地质与勘探，54（2）：332-343. |
| null | 黄镇豪，李兆谊，石玉春，等，2015.物探成果对罗维矿区深部找矿的指示作用及成矿潜力分析［J］.黄金科学技术，23（1）：53-60. |
| null | 申萍，沈远超，刘铁兵，等，2007.EH4连续电导率成像仪在隐伏矿体定位预测中的应用研究［J］.矿床地质，26（1）：70-78. |
| null | 沈远超，申萍，刘铁兵，等，2008.EH4在危机矿山隐伏金矿体定位预测中的应用研究［J］.地球物理学进展，23（1）：559-567. |
| null | 王志强，胡滑志帆，陈斌，等，2020.辽东半岛早白垩世三股流岩体岩石成因：微量元素模拟和Sr-Nd同位素的制约［J］.岩石学报，36（12）：3683-3704. |
| null | 肖世椰，朱光，张帅，等，2018.辽东五龙金矿区成矿期构造过程与岩脉就位机制［J］.科学通报，63（增2）：3022-3036. |
| null | 杨凤超，宋运红，杨佳林，等，2018.辽东五龙—四道沟金矿集区花岗杂岩SHRIMP U-Pb年龄、地球化学特征及地质意义［J］.大地构造与成矿学，42（5）：940-954. |
| null | 杨进辉，吴福元，罗清华，等，2004.辽宁丹东地区侏罗纪花岗岩的变形时代：40Ar/39Ar年代学制约［J］.岩石学报，20（5）：1205-1214. |
| null | 姚晓峰，颜廷杰，林成贵，等，2021.辽东半岛五龙金矿成矿系统新认识：来自外围热液角砾岩型铅锌矿化的指示［J］.岩石学报，37（6）：1883-1900. |
| null | 俞炳，曾庆栋，夏凡，等，2020.辽宁五龙金矿构造叠加晕研究［J］.地质与勘探，56（5）：898-914. |
| null | 曾庆栋，陈仁义，杨进辉，等，2019.辽东地区金矿床类型、成矿特征及找矿潜力［J］.岩石学报，35（7）：1939-1963. |
| null | 曾庆栋，沈远超，刘铁兵，等，2004.新疆多拉纳萨依金矿床成矿远景［J］.黄金科学技术，12（5）：1-5. |
| null | 张蜀冀，刘新会，杨拴海，2014.南秦岭金龙山金矿106号脉体群地质特征［J］.黄金科学技术，22（3）：7-14. |
/
| 〈 |
|
〉 |