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Metal Mine ›› 2009, Vol. 39 ›› Issue (04): 81-83+94.

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Application of High Precision Magnetic Survey in the Exploration of a Lead-zinc Deposit

Zhang Weiqing1,2,Zhang Zuolun1,2, Zhang Luxin1,2, Wang Yongbin1,2, Zeng Qingdong1,Ye Jie1, Yu Changming1, Liu Hongtao1, Chen Weijun1,2   

  1. 1.Key Laboratory of Mineral Resources, Chinese Academy of Sciences ,2.Graduate School of Chinese Academy of Sciences
  • Online:2009-04-15 Published:2011-11-22

Abstract: The simple magnetic survey indicated that the ore-bodies outcropped in the target area had obvious magnetic anomaly.In order to effectively instruct the prospecting work in the target area, we used handheld HC-95a ground helium optically-pumped magnetometer in combination with high precision GPS survey in the ground high precision magnetic survey for buried ore-bodies.The survey involving 19 survey lines with a total length of 23 200 m and 1 179 measuring points was carried out, and three 800~1 800 m long belts of high magnetic anomalies were defined.One anomaly was found at the contact belt between the intrusive rock and stratum, where two mineralization outcrops on the ground surface were determined to have mineralization anomalies.Anomalies 2 and 3 were of large size and had no mineralization outcrop, and a further work should be made to find the cause for the magnetic anomaly.

Key words: Skarn type, Lead-Zinc deposit, Helium optically-pumped magnetometer, Prospecting