| 小秦岭金矿田典型矿床成矿物理化学条件探讨 |
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| 引用本文： | 黄超勇,郑红星,周胜兴,瓮纪昌,罗铭玖.小秦岭金矿田典型矿床成矿物理化学条件探讨[J].矿产与地质,2010,24(5):454-459. |
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| 作者姓名： | 黄超勇 郑红星 周胜兴 瓮纪昌 罗铭玖 |
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| 作者单位： | [1]河南省地质矿产勘查开发局第二地质勘查院,河南许昌461000 [2]河南省地质调查院,郑州450007 [3]河南省地质矿产勘查开发局,郑州450053 |
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| 摘 要： | 通过对小秦岭金矿田四个典型矿床成矿温压条件和成矿溶液的成分、酸碱度、硫逸度等物理化学条件的分析研究,得出如下结论：①主要成矿温度296℃-155℃,属中、低温矿床;②成矿压力108-163MPa,为成矿压力范围;③硫逸度随矿化阶段不同而变化;成矿pH值6左右。确定矿床形成的各项物化条件下,扩大了地质找矿方面信息量。
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| 关 键 词： | 金矿田 地质背景 成矿物理化学条件 小秦岭 河南 |
Discussion on physicochemical conditions of mineralization of typical deposits in Xiaoqinling gold field |
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| HUANG Chao-yong,ZHENG Hong-xing,ZHOU Sheng-xi,WENG Ji-chang,LUO Ming-jiu.Discussion on physicochemical conditions of mineralization of typical deposits in Xiaoqinling gold field[J].Mineral Resources and Geology,2010,24(5):454-459. |
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| Authors: | HUANG Chao-yong ZHENG Hong-xing ZHOU Sheng-xi WENG Ji-chang LUO Ming-jiu |
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| Institution: | 1.The Second Geological Exploration Institute,Henan Provincial Bureau of Geo-exploration and Mineral Development,Xuchang 461000,China;2.Henan Institute of Geological Survey,Zhengzhou 450007,China;3.Henan Provincial Bureau of Geo-exploration and Mineral Development,Zhengzhou 450012,China) |
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| Abstract: | Based on a study of ore-forming temperature,pressure and composition,pH,sulfur fugacity of ore-forming solution of four typical deposits in Xiaoqinling gold field,the following conclusions can be drawn： 1） The main ore-forming temperature is 296~155℃,which are medium-low temperature deposits;2） The ore-forming pressure range is 108~163MPa;3） Sulfur fugacity varies with the mineralization stage.The pH value of ore forming is 6.The geological prospecting information are expanded under determining the physico-chemical conditions of the deposit formation. |
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| Keywords: | gold field forming conditions Xiaoqinling Henan-Shaanxi |
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