| 田宇,沈正新,祁程.小兴安岭成矿带铁矿床航磁特征及找矿前景分析[J].矿产勘查,2017,8(3):440-446 |
| 小兴安岭成矿带铁矿床航磁特征及找矿前景分析 |
| Aeromagnetic anomaly characteristics of iron ore deposit and analysis of prospecting prospect in Xiaoxinganling mountain metallogenic belt |
| 投稿时间：2016-07-16 |
| DOI： |
| 中文关键词: 铁矿床 航磁特征 夕卡岩型 沉积变质型 小兴安岭成矿带 |
| 英文关键词: iron ore deposit, aeromagnetic anomaly characteristics, skarn type, sedimentary metamorphical type, Xiaoxinganling mountain metallogenic belt |
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| 摘要点击次数: 2301 |
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| 中文摘要: |
| 小兴安岭成矿带是黑龙江省重要的铁及多金属成矿带,铁成矿类型主要为夕卡岩型及沉积变质型,二者在航磁特征上具有一定差异:夕卡岩型铁矿主要表现为成群出现的等轴状及椭圆状航磁异常,异常走向与接触带方向大体一致；沉积变质型铁矿主要表现为宽条状及窄条状的线性异常带,异常走向与地层展布方向大体一致。通过综合分析,预测铁找矿远景区8片,优选具有找矿意义的航磁异常43个。经工程揭露取得了丰硕的地质成果,反映出远景区具有寻找铁及其他金属矿产的巨大潜力。 |
| 英文摘要: |
| The Xiaoxinganling mountain metallogenic belt is an important iron and poly-metallic metallogenic belt in Heilongjiang Province where the prospecting potential is tremendous. The iron mineralization types in this area mainly include skarn and sedimentary metamorphical type. There are some differences in aeromagnetic anomaly characteristics between them. Aeromagnetical anoamlies of the skarn type iron ore deposit are mainly equiaxed or elliptical aeromagnetic anomalies in groups and the strike of anomalies are the same direction of the contact zone. Aeromagnetical anoamlies of sedimentary metamorphic iron ore deposit mainly show wide strip and narrow strips of linear anomaly zone, and the strike of anomalies is the same direction of stratigraphic distribution. Based on comprehensive analysis, 8 iron prospecting areas are outlined, and 43 aeromagnetic anomalies were selected for the test verification with prospecting significance. Great exploration achievement has been obtained through engineering test work, and the result shows that there is great potential for finding iron and other metal mineral resources. |
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