| 金属因素在敦化团北地区激电异常评价中的应用 |
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| 引用本文： | 单承恒,刘国兴,韩江涛,金忠宝,单春玲.金属因素在敦化团北地区激电异常评价中的应用[J].世界地质,2010,29(2):323-326. |
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| 作者姓名： | 单承恒 刘国兴 韩江涛 金忠宝 单春玲 |
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| 作者单位： | 1. 吉林有色金属地质勘查局607 队，吉林132000; 2. 吉林大学地球探测科学与技术学院，长春130026 |
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| 基金项目： | 吉林有色地质勘查局607队敦化团北找矿项目 |
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| 摘 要： | 为准确评价敦化团北地区激电异常,研究其产生机制,采用提取激电二次信息的视金属因素(Js)方法,突出与电子导体相关的低阻极化体异常,压制与电子导体不相关的激电异常。结果表明:测区西北角视金属因素异常与强激电异常相吻合,与电子导体(金属矿化或矿化)相关,而大范围低缓激电异常区没有视金属因素异常显示,说明与电子导体不相关。在敦化团北地区利用视金属因素压制干扰因素所引起的异常,突出与电子导电体相关的低阻极化体异常效果明显,结合地质揭露工程得出低缓激电异常是由受轻微矿染的花岗斑岩所引起的结论。
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| 关 键 词： | 激电法 金属因素 异常评价 二次信息应用 团北地区 敦化 |
Application of metallic factor to IP anomaly appraisal in Tuanbei area of Dunhua |
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| SHAN Cheng-heng,LIU Guo-xing,HAN Jiang-tao,JIN Zhong-bao,SHAN Chun-ling.Application of metallic factor to IP anomaly appraisal in Tuanbei area of Dunhua[J].World Geology,2010,29(2):323-326. |
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| Authors: | SHAN Cheng-heng LIU Guo-xing HAN Jiang-tao JIN Zhong-bao SHAN Chun-ling |
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| Institution: | 1. Team 607 of Jilin Geological Exploration Bureau for Nonferrous Metals，Jilin 132000，Jilin，China; 2. College of Geoexploration Science and Technology，Jilin University，Changchun 130026，China |
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| Abstract: | In order to indentify the IP anomaly in Tuanbei area of Dunhua and to study its formation mechanism,the authors use the method of apparent metallic factor （Js） by extracting IP secondary information to prominent the low resistivity polarization anomaly related to electronic conductor,and to suppress the IP anomaly non-related to electronic conductor. The results show that the Js anomaly fits well the strong IP anomaly in northwestern test area,which is related to electronic conductor （metallic mineralization or mineralization）. But there is no Js anomaly in the extensive low and gentle IP anomaly area,which indicates that it is not relevant to electronic conductor. The effect of using Js to suppress the anomaly caused by interference factors and giving prominence to low resisitivity polarization anomaly related to electronic conductor is pretty obvious. The conclution is that the low and gentle IP anomaly is caused by slight disseminative granite porphyry combined with geological exposed exploration. |
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| Keywords: | IP method metallic factor anomaly appraisal application of secondary information Tuanbei area Dunhua |
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