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| THE MAGNETIC SUSCEPTIBILITY PARAMETERS CHARACTERISTICS OF DRILLING CORE ROCK (ORE) AND THEIR APPLICATION TO STRATIGRAPHIC LITHOLOGIC DIVISION |
| LI Shui-ping, WANG Jian-guang, CHENG Hua, BAI De-sheng, ZHANG Yong, XIE Yan-jun |
| No. 2 Institute of Geology and Mineral Survey, Henan Bureau of Geology and Mineral Exploration, Zhengzhou 450001, China |
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Abstract In a gold mine of Tanzania, Sm-30 magnetic susceptibility device was used to directly measure the magnetic susceptibility values of drilling core rocks (ores) in the absence of logging equipment; the depths of the drill hole and the magnetic susceptibility values corresponding to these depths were plotted similar to well logs. According to the curve characteristics of the magnetic susceptibility parameters, the division of lithologic horizons was conducted, and the strike of the gold ore bed was determined. A comparison with the drill hole geological columnar section shows that this method is quite effective.
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Received: 03 July 2012
Published: 10 October 2013
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