| 北祁连西段鹰咀山蚀变碎裂岩型金矿床控矿因素和成因 |
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| 引用本文： | 叶得金, 张作衡, 赵彦庆. 北祁连西段鹰咀山蚀变碎裂岩型金矿床控矿因素和成因[J]. 地球学报, 2003, (4): 311-318. doi: 10.3321/j.issn:1006-3021.2003.04.004 |
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| 作者姓名： | 叶得金 张作衡 赵彦庆 |
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| 作者单位： | 中国地质大学地球科学与资源学院,北京100083; 中国地质科学院矿产资源研究所,北京100037;甘肃省地质调查院,甘肃兰州730000;中国地质大学地球科学与资源学院,北京100083; 中国地质科学院矿产资源研究所,北京100037 |
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| 基金项目： | 由地质调查项目(19991020168003);国家重点基础研究发展规划项目(G1999043211);国家计委科技找矿项目(JG9471902) |
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| 摘 要： | 本文论述了北祁连西段鹰咀山金矿床区域地质背景、矿床成矿地质条件、矿体特征、围岩蚀变、矿化和矿床地球化学特点,认为金矿床主要受多级断裂系统和火山碎屑岩控制,金矿化与蚀变碎裂岩带关系密切,是一种蚀变碎裂岩型金矿床.流体包裹体测温结果为中高温,成分以低盐度以及富CO2和H2O为特征;稳定同位素组成表明,成矿流体早期以岩浆水为主,晚期混有大量大气降水.
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| 关 键 词： | 蚀变碎裂岩型金矿床 控矿因素 成因 鹰咀山 |
Ore-control Factors and Genesis of the Yingzuishan Altered Cataclastic Rock Type Gold Deposit, the West Sector of the Northern Qilian Mountains |
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| Ore-control Factors and Genesis of the Yingzuishan Altered Cataclastic Rock Type Gold Deposit, the West Sector of the Northern Qilian Mountains[J]. Acta Geoscientica Sinica, 2003, (4): 311-318. doi: 10.3321/j.issn:1006-3021.2003.04.004 |
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| Authors: | YE De-jin ZHANG Zuo-heng ZHAO Yan-qing |
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| Affiliation: | School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083; Institute of Mineral Resources, CAGS, Beijing 100037;Gansu Institute of Geological Survey, Lanzhou, Gansu, 730000;School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083; Institute of Mineral Resources, CAGS, Beijing 100037 |
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| Abstract: | This paper gives a detailed description of the regional geological setting, metallogenic conditions, characteristics of ore bodies, alteration of wall rock, gold mineralization, and geochemistry of the Yingzuishan gold deposit. The deposit is mainly controlled by multi-grade fault system and pyroclastic rock. The gold mineralization is closely related to the cataclastic rock belt and the gold deposit is an alteration cataclastic rock type of gold deposit. The results of study on the homogenization temperature of fluid inclusions reveal that the ore-forming fluids characterized by middle-high temperature, low salinity and rich in CO2 and H2O. The data of stable isotope suggest that the ore-forming fluids is mainly from magmatic water in the early stage of mineralization and much meteoric water were mixed into the ore-forming system during the late stage. |
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| Keywords: | altered cataclastic rock type gold deposit ore-control factors genesis Yingzuishan |
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