| 冀东孤山子航磁异常特征及其找矿前景 |
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| 引用本文： | 范正国.冀东孤山子航磁异常特征及其找矿前景[J].地质与勘探,2012,48(4):750-759. |
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| 作者姓名： | 范正国 |
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| 作者单位： | 1. 中国国土资源航空物探遥感中心,北京,100083
2. 中国国土资源航空物探遥感中心,北京100083 中国地质大学（北京）,北京100083 |
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| 基金项目： | 地质大调查项目“重要铁矿成矿区带航磁靶区优选冶(项目编号为1212010913037) |
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| 摘 要： | 摘 要]冀东孤山子航磁异常为冀东三大航磁异常之一,且位于冀东石人沟-板城铁矿集中区。通过对本区地质构造特征、岩矿石物性及重磁异常特征等进行综合研究,认为孤山子航磁异常并非完全由孤山子基性-超基性岩杂岩体和已控制的浅地表超贫磁铁矿体所引起,进而采用2. 5D 拟合技术进行了定量拟合计算和资源量估算,认为孤山子航磁异常具有较好的找铁矿前景。同时,通过对孤山子航磁异常的推断解释,总结了减少航磁异常解释多解性的思路与做法。
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| 关 键 词： | 航磁异常 铁矿 超贫磁铁矿 找矿前景 |
| 收稿时间： | 2011/12/7 0:00:00 |
| 修稿时间： | 2012/4/27 0:00:00 |
Aeromagnetic Anomaly Characteristics and Prospecting Potential of
the Gushanzi Area in Eastern Heibei Province |
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| FAN Zheng-guo.Aeromagnetic Anomaly Characteristics and Prospecting Potential of
the Gushanzi Area in Eastern Heibei Province[J].Geology and Prospecting,2012,48(4):750-759. |
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| Authors: | FAN Zheng-guo |
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| Affiliation: | China Aero Geophysical Survey and Remote Sensing Center for Land and Resoures,Beijing |
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| Abstract: | Abstract:The aeromagnetic anomaly in the Gushanzi area is one of the three major aeromagnetic anomalies in eastern Hebei Province,which is located in the Shirengou-Bancheng iron ore concentration area. Studies of its geological structure,physical properties of rocks and ores,as well as its gravitational and aeromagnetic anomalies suggest that the Gushanzi mafic-ultrabasic intrusive complex and shallow ultra-low-grade magnetite ore are not completely responsible for this aeromagnetic anomaly. The results of 2. 5D quantitative calculation and resource estimation indicate that the Gushanzi aeromagnetic anomaly may imply a promising potential for iron ore. And through interpretation of the Gushanzi aeromagnetic anomaly,this paper summarizes the ideas and methods of reducing ambiguity in interpretation of aeromagnetic anomalies. |
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| Keywords: | aeromagnetic anomaly iron ore ultra-low-grade magnetite prospecting potential |
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