| 秘鲁航磁特征及铁矿类型 |
| |
| 引用本文： | 李建华,何继善.秘鲁航磁特征及铁矿类型[J].物探与化探,2011,35(5):604-609. |
| |
| 作者姓名： | 李建华 何继善 |
| |
| 作者单位： | 中南大学信息物理工程学院,湖南长沙,410083 |
| |
| 摘 要： | 为了解秘鲁国铁矿分布规律,对秘鲁22.5万km2的航磁资料进行了化极、延拓、求导等各种处理工作,通过分析已知铁矿的航磁异常,结合秘鲁区域地质构造以及秘鲁各地质年代地层及岩性特征,归纳得出与不同铁矿类型有关的磁异常类型。它们主要有:陆相火山喷溢型的铁矿异常;受断裂构造控制的与第三纪早、中期的火山喷发物质有关的磁异常区;第三纪早、中期的火山喷发物质掩盖区的磁异常;分布于海岸带内的正磁异常带;位于闪长岩体的岩浆期后热液脉状铁矿异常;矽卡岩型铁矿异常。这对认识安第斯山大地构造以及圈定有利的铁矿成矿靶区有一定的意义。
|
| 关 键 词： | 秘鲁 安第斯山 区域地质 航磁异常 铁矿类型 |
AEROMAGNETIC CHSARACTERISTICS AND TYPES OF IRON ORE DEPOSIT IN PERU |
| |
| LI Jian-hua,HE Ji-shan.AEROMAGNETIC CHSARACTERISTICS AND TYPES OF IRON ORE DEPOSIT IN PERU[J].Geophysical and Geochemical Exploration,2011,35(5):604-609. |
| |
| Authors: | LI Jian-hua HE Ji-shan |
| |
| Institution: | LI Jian-hua,HE Ji-shan (School of Info-physics and Geomatics Engineering,Central South University,Changsha 410083,China) |
| |
| Abstract: | Peru is rich in iron ore resources.Aeromagnetic is an important approach for iron deposit prospecting directly or indirectly.In order to understand distribution of iron bodies by using aeromagnetic information,various data process approaches such as reduction to the pole,continuation and derivative have been carried out for the 2 250 000 km2 aeromagnetic raw data.Combined with regional geological structure and geological strata and lithology of Peru,various magnetic anomalies concerned with iron ore types a... |
| |
| Keywords: | Peru Andes regional geology aeromagnetic anomalies iron ore deposit |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
