新疆若羌县沙河湾钛磁铁矿地质特征及找矿意义
Geological Characteristics and Prospecting Significance of Shahewan Titanium Magnetite Deposit in Ruoqiang County, Xinjiang
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摘要: 沙河湾钛磁铁矿产于笔架山基性-超基性岩带的东部，赋存于层状辉长岩中，目前发现矿体数十条，长数百米至一千米不等，探获资源量达中型规模，为典型的岩浆分异熔离型钛磁铁矿床。在地球物理特征上表现为磁异常与地表基性岩体相吻合，高磁异常中心呈层状展布，与地表钛磁铁矿体分布一致，说明该区仍具找矿潜力。笔者试着从成矿地质特征方面对沙河湾钛磁铁矿进行矿床成因分析，为在该带上寻找同类型矿床提供一定的借鉴。Abstract: The Shahewan titanum magnetite deposit is produced in the eastern part of Bijiashan basic-ultrabasicrock belt, which is occurred in layered gabbro. Recently, dozens of ore bodies have been found in this deposit, with length of several tens of meters to one kilometer, with total explored resources reach to medium scale, and this deposit belongs to a typical magmatic differentiation and separation type. In this deposit, the geophysical and magnetic anomalies are consistent with the basic roch-mass, the core of high magnetic anomaly shows layered distribution, which is consistent with the distribution of titanium magnetite ore bodies in the surface, suggesting that this area still has a great prospecting potential. In this paper, the genisis of the Shahewan titanium magnetite deposit has been analyzed from the aspect of metallogenic geological characteristics, which provide a reference for prospecting the same type of ore deposits in this rock belt.
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Key words:
- ore deposit geology /
- titanium magnetite /
- genesis of ore deposit /
- layered gabbro /
- Shahewan
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