综合物探在新兴都斛铜矿床勘查中的应用

doi:10.11720/wtyht.2024.1101

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Abstract

Since individual geophysical exploration methods suffer the multiplicity of solutions, comprehensive geophysical prospecting has been extensively applied in deep ore prospecting presently. This study conducted the geological exploration of the Duhu porphyry copper deposit in Xinxing County using multiple geophysical methods such as high-precision magnetic survey and controlled source audio-frequency magnetotellurics (CSAMT). It was inferred that the CSAMT-derived medium-low resistivity anomalies and the low-gentle anomalies derived from the high-precision magnetic survey serve as significant prospecting indicators. Satisfactory results were achieved in follow-up verification of the anomalies. Specifically, copper, molybdenum, silver, and gold mineralized bodies with a cumulative thickness of 178.2 m were identified in a 1 000 m deep borehole, with the highest copper grade of 1.45%. The application of comprehensive geophysical prospecting holds great significance in guiding the exploration of porphyry copper deposits in western Guangdong.

Key words： Duhu copper deposit high-precision magnetic survey controlled source audio magnetotellurics porphyry copper deposit

Received: 14 March 2023 Published: 16 April 2024

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	Jun-Fei HE

Cite this article:

Jun-Fei HE. Application of comprehensive geophysical prospecting in exploration of the Duhu copper deposit in Xinxing County[J]. Geophysical and Geochemical Exploration, 2024, 48(2): 375-381.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2024.1101 OR https://www.wutanyuhuatan.com/EN/Y2024/V48/I2/375

The map of geology and geophysical stations arrangement in the area
1—Quaternary diluvium and slope deposit;2—late Cretaceous granite porphyry;3—late Jurassic granophyric biotite granite;4—potassium feldspar sericite zone (potassic zone);5—sericite chlorite zone(mudstone zone);6—chlorite epidote zone(propylitic zone);7—geological prediction faults and numbers;8—boundary lines of altered lithofacies;9—CSAMT and high-precision magnetic method coincidence points;10—high-precision magnetic method points

Statistics of physical parameters of rocks

The plane anomaly map of high-precision magnetic method
1—late Cretaceous granite porphyry;2—late Jurassic granophyric biotite granite;3—potassium feldspar sericite zone (potassic zone);4—sericite chlorite zone(mudstone zone);5—chlorite epidote zone(propylitic zone);6—boundary lines of late Cretaceous granite porphyry;7—boundary lines of altered lithofacies;8—geological prediction faults and numbers

The profile map of comprehensive geophysical anomalies with line 3
1—geophysical prediction faults and numbers;2—geophysical verification hole and azimuth angle;3—old drill holes and numbers;4—boundary lines of relatively low resistance anomaly;5—prediction of granite porphyry intrusion boundary;6—industrial copper ore body (w(Cu)≥0.4%);7—low grade copper body (0.2%≤w(Cu)< 0.4%)

The profile map of comprehensive geophysical anomalies with line 4
1—geophysical prediction faults and numbers;2—boundary lines of relatively low resistance anomaly;3—prediction of granite porphyry intrusion boundary

[1]	陆桂福, 米宏泽, 刘瑞德, 等. 综合物探在斑岩型银钼多金属矿勘查中的应用[J]. 物探与化探, 2014, 38(4):835-839.
[1]	Lu G F, Mi H Z, Liu R D, et al. The application of integrated geophysical exploration technology to the prospecting for porphyry silver-molybdenum polymetallic deposits[J]. Geophysical and Geochemical Exploration, 2014, 38(4):835-839.
[2]	侯朝勇, 蔡厚安, 裴森龙. 综合物化探方法在新疆哈密月牙湾铜镍矿勘查中的应用[J]. 矿产与地质, 2021, 35(6):1116-1123.
[2]	Hou Z Y, Cai H A, Pei S L. Application of comprehensive geophysical and geochemical methods in the exploration of Yueyawan copper nickel deposit in Hami,Xinjiang[J]. Mineral Resources and Geology, 2021, 35(6):1116-1123.
[3]	王金鑫, 张嵩松, 赵文广, 等. 综合地球物理勘探方法在安徽范水洼地区金矿找矿中的应用[J]. 中国地质调查, 2021, 8(5):35-44.
[3]	Wang J X, Zhang S S, Zhao W G, et al. Application of comprehensive geophysical methods in gold deposits prospecting in Fanshuiwa area of Anhui Province[J]. Geological Survey of China, 2021, 8(5):35-44.
[4]	古志宏, 廖小华, 肖光铭. 广东省铜矿类型划分及成矿特征[J]. 华南地质与矿产, 2011, 27(2):141-146.
[4]	Gu Z H, Liao X H, Xiao G M. Classification and metallogenic characteristics of copper deposits in Guangdong Province[J]. Geology and Mineral Resources of South China, 2011, 27(2):141-146.
[5]	广东省地质矿产局. 广东省区域地质志[M]. 北京: 地质出版社,1988.
[5]	Guangdong Bureau of Geology and Mineral Resources. Regional geology of Guangdong Province[M]. Beijing: Geology Press,1989.
[6]	杜海燕, 郑卓. 广东地质新论[M]. 北京: 地质出版社, 2012:170-184.
[6]	Du H Y, Zheng Z. A new theory of Guangdong geology[M]. Beijing: Geological Publishing House, 2012:170-184.
[7]	姚金炎. 关于斑岩铜矿的找矿[J]. 矿产与地质, 1999, 13(2):65-69.
[7]	Yao J Y. Study on prospecting porphyry copper deposits[J]. Mineral Resources and Geology, 1999, 13(2):65-69.
[8]	杨大欢, 武国忠. 广东省矿床成矿系列与成矿谱系[J]. 地质与资源, 2018, 27(2):173-185.
[8]	Yang D H, Wu G Z. Metallogenic series and lineage of deposits in Guangdong Province[J]. Geology and Resources, 2018, 27(2):173-185.
[9]	宋学旺, 王汝兴. 广东新兴县天堂多金属矿地质特征及钼矿床找矿方向[J]. 矿产与地质, 2012, 26(5):395-401.
[9]	Song X W, Wang R X. Geological characteristics of Tiantang polymetallic deposit in Xinxing County,Guangdong Province and prospecting direction of molybdenum deposit[J]. Mineral Resources and Geology, 2012, 26(5):395-401.
[10]	龙辉. 广东省新兴县都斛铜多金属矿区地质特征及找矿前景探讨[J]. 西部探矿工程, 2017, 29(2):161-163.
[10]	Long H. Geological characteristics and prospecting prospect of Duhu copper polymetallic mining area in Xinxing County,Guangdong Province[J]. West-China Exploration Engineering, 2017, 29(2):161-163.
[11]	广东省有色金属地质局九三三队. 广东省新兴县都斛铜多金属矿普查报告[R]. 2019.
[11]	The Geological Team No. 933,Non ferrous Metals Geological Bureau of Guangdong Prouince.Survey report of Douhu copper polymetallic deposit in Xinxing County,Guangdong Province[R]. 2019.
[12]	卢赛虎, 龙辉, 邱文锋, 等. 广东省新兴县都斛铜矿床地质特征与找矿潜力[J]. 矿产与地质, 2021, 35(1):23-28,49.
[12]	Lu S H, Long H, Qiu W F, et al. Geological characteristics and prospecting potential of Douhu copper deposit in Xinxing County of Guangdong[J]. Mineral Resources and Geology, 2021, 35(1):23-28,49.
[13]	广东省有色地质勘查院. 广东省新兴县都斛铜多金属矿区物探工作报告[R]. 2019.
[13]	Guangdong Nonferrous Metals Geological Exploration Institution. Geophysical report of Douhu copper polymetallic deposit in Xinxing County,Guangdong Province[R]. 2019.
[14]	曹令敏. 地球物理方法在金属矿深部找矿中的应用及展望[J]. 地球物理学进展, 2011, 26(2):701-708.
[14]	Cao L M. The application and expectation of the geophysical methods to deep metal mine exploration[J]. Progress in Geophysics, 2011, 26(2):701-708.
[15]	熊光楚. 金属矿区磁法勘探的进展与展望[J]. 地球物理学报, 1994, 37(S1):435-443.
[15]	Xiong G C. Progress and prospect of magnetic exploration in metal mining areas[J]. Chinese Journal of Geophysics, 1994, 37(S1):435-443.
[16]	何继善. 可控源音频大地电磁法[M]. 长沙: 中南工业大学出版社,1990.
[16]	He J S. Controlled source audio magnetotelluric method[M]. Chansha: Central South University of Technology Press,1990.
[17]	张建奎. 可控源音频大地电磁测深找铅锌矿的应用[J]. 物探与化探, 2010, 34(2):167-169.
[17]	Zhang J K. The application of csamt to the prospecting for lead and zinc deposits[J]. Geophysical and Geochemical Exploration, 2010, 34(2):167-169.
[18]	何俊飞. 可控源音频大地电磁法在凡口铅锌矿中的应用[J]. 工程地球物理学报, 2013, 10(6):763-770.
[18]	He J F. Application of controlled source audio-frequency magnetotelluric method in Fankou lead-zinc deposit[J]. Chinese Journal of Engineering Geophysics, 2013, 10(6):763-770.
[19]	黄理善, 侯一俊, 杨红, 等. 斑岩型铜矿床带条件约束的CSAMT数据精细处理和反演解释[J]. 物探与化探, 2015, 39(4):817-822.
[19]	Huang L S, Hou Y J, Yang H, et al. CSAMT data interpretation by fine processing and constraint inversion in the porphyry copper deposit[J]. Geophysical and Geochemical Exploration, 2015, 39(4):817-822.