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| The application of ground magnetic measurement and borehole magnetic measurement to the exploration of the Lucaotan magnetite deposit |
| LI Rong-Liang1, REN Jie1, TIAN Jian-Rong2, LIU Yang1 |
1.No. 3 Institute of Geology and Mineral Exploration,Gansu Bureau of Geology and Mineral Exploration and Development,Lanzhou 730050,China;
2.Gansu Vocational & Technical College of Nonferrous Metallurgy,Jinchang 737100,China; |
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Abstract Through geological survey, the authors infer that there are more blind orebodies at the depth of the Lucaotan mining area, and hence it is necessary to carry out further exploration. Using the 1:1 million ground high-precision magnetic measurement, the authors delineated the magnetic anomalies, inferred and divided the geological structures. Through interpretation and study of the magnetic anomalies, the authors found the hidden magnetite orebody. By using the 2.5D human-computer interactive inversion technique the authors inferred that there exist hidden magnetic orebodies at the depth. Borehole magnetic measurement plays an important role in guiding drilling work. Practice has proved that the organic combination of ground magnetic measurement and borehole magnetic measurement in the exploration of the Lucaotan magnetite deposit has made significant prospecting effect.
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Received: 20 March 2016
Published: 20 June 2017
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