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Gold Science and Technology ›› 2021, Vol. 29 ›› Issue (4): 500-509.doi: 10.11872/j.issn.1005-2518.2021.04.203

• Mineral Exploration and Resource Evaluation • Previous Articles    

Research and Prospecting Prediction of Concealed Tin-Copper Polymetallic Deposit by Geo⁃electrochemical Extraction Method in Jidongwan Mining Area of Luocheng County，Guangxi

Yuhui WANG1(),Xianrong LUO1(),Wang HE1,Dong WANG2,Guodong TANG1,Zhencheng SHANG1   

  1. 1.Guangxi Key Laboratory of Hidden Metal Mineral Exploration，College of Earth Sciences，Guilin University of Technology，Guilin 541004，Guangxi，China
    2.Guangxi Zhuang Autonomous Region Seismological Bureau，Nanning 530015，Guangxi，China
  • Received:2020-11-26 Revised:2021-04-27 Online:2021-08-31 Published:2021-10-08
  • Contact: Xianrong LUO E-mail:2445885301@qq.com;lxr811@glut.edu.cn

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Abstract:

In order to solve the deep prospecting problem of Jidongwan mining area in Luocheng County，Guangxi，the geo-electrochemical extraction method was carried out to explore concealed tin-copper polymetallic deposits.It is found that the geo-electrochemical extraction anomaly，shown above the known orebody profile，exists a high correspondence with the orebody，which can better reflect the concealed tin-copper orebody.It means that the geo-electrochemical extraction method is feasible to find tin-copper polymetallic deposits in the Jidongwan mining area，and it has good effectiveness and adaptability. The factor analysis of the geo-electrochemical extraction element data in the study area was conducted.The results show that the elements can be classified into four elemental assemblages，namely，F1（Cu-Ni-Co-Pb-Zn），F2（Ag-Bi），F3（W-Sn） and F4（B）.According to the spatial distribution pattern of single elements and elemental assemblages anomalies extracted by the geo-electrochemical approach，it can be seen that each element has a high anomalous definition，intensity，and good continuity.Besides，the elemental assemblages are anomalously well-nested and clearly zoned.Based on the analysis of the spatial distribution characteristics of the geoelectric extraction elements and the combined element anomalies in the Jidongwan mining area，according to the size，intensity，morphological characteristics and the degree of agreement between the anomalies，combined with the geological location and geological characteristics and other factors， two A type target areas（A-1，A-2） and two B type target areas（B-1，B-2）are delineated in the study area.It is believed that the study area has favorable ore-forming geological conditions，which is a favorable location for searching for concealed tin-copper polymetallic orebodies，and has great prospecting potential.

Key words: tin-copper polymetallic ore, geoelectrochemical extraction method, abnormal characteristics, prospecting prediction, Jidongwan mining area, Guangxi

CLC Number: 

  • P618.2

Fig.1

Sampling layout of Jidongwan mining area，Luocheng County，Guangxi"

Fig.2

Comprehensive profile of geological and geoelectric anomalies in line 0 of Jidongwan mining area，Luocheng County，Guangxi"

Fig.3

Plane view of geoelectric anomaly in Jidongwan mining area，Luocheng County，Guangxi"

Fig.4

R-type clustering map of geoelectric extraction elements in Jidongwan mining area，Luocheng County，Guangxi"

Table 1

Orthogonal factor loading matrix of R-type factor analysis"

元素成分矩阵a旋转后的成分矩阵b
成分1成分2成分3成分4成分1成分2成分3成分4
Sn-0.473-0.0140.533-0.100-0.287-0.1880.625-0.094
Cu0.721-0.2370.077-0.3490.8030.161-0.028-0.181
Pb0.7090.094-0.0760.1920.4860.429-0.2400.276
Zn0.659-0.5060.175-0.1600.857-0.0860.0630.041
Ag0.5190.561-0.0480.0630.1300.736-0.1660.065
Bi0.3730.7100.263-0.1580.0280.8240.189-0.147
B0.145-0.1450.1900.8950.019-0.0160.0560.936
W0.004-0.0030.850-0.0020.1220.0990.8260.121
Co0.7770.1350.0010.1210.5480.506-0.1720.224
Ni0.857-0.2440.035-0.0280.8410.223-0.1320.146

Fig.5

A composition diagram in rotated space"

Fig.6

Plane view of geoelectric combination anomaly in Jidongwan mining area，Luocheng County，Guangxi"

Fig.7

Target prediction map of Jidongwan mining area，Luocheng County，Guangxi"

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