| 河北省沙河市白涧铁矿床稀土元素地球化学特征 |
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| 引用本文： | 郝俊杰,莘建宏,赵新卫,冯东东. 河北省沙河市白涧铁矿床稀土元素地球化学特征[J]. 现代地质, 2011, 25(3): 545-552 |
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| 作者姓名： | 郝俊杰 莘建宏 赵新卫 冯东东 |
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| 作者单位： | 河北省地质矿产勘查开发局第十一地质大队,河北邢台,054000 |
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| 基金项目： | 河北省国土资源厅科学研究项目"邯邢式铁矿成矿规律与深部找矿方法研究" |
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| 摘 要： | 通过对河北省沙河市白涧铁矿床稀土元素的研究,判定矽卡岩、矿石与地层(灰岩)具有类似的稀土元素特征,矿石与岩浆岩(闪长岩)也有着密切的关系。矽卡岩、矿石的稀土元素分布模式表现出了承袭围岩的分布模式,造成这一现象的原因可能是由于含矿岩浆形成后经过了较长距离的运移,需要经过断裂等通道到达现在的沉淀位置,并与围岩发生接触交代作用,而在交代过程中,热液萃取了大量地层的成矿物质所造成。矽卡岩、矿石均呈现较强的Eu负异常和较弱的Ce异常,表明它们是由一种低温、Eu强烈富集的岩浆流体在还原环境下形成的。
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| 关 键 词： | 稀土元素地球化学 邯邢式铁矿 沙河白涧铁矿 河北省 |
REE Geochemistry of Baijian Iron Deposit in Shahe City,Hebei Province |
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| HAO Jun-jie,XIN Jian-hong,ZHAO Xin-wei,FENG Dong-dong. REE Geochemistry of Baijian Iron Deposit in Shahe City,Hebei Province[J]. Geoscience of Geosciences, 2011, 25(3): 545-552 |
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| Authors: | HAO Jun-jie XIN Jian-hong ZHAO Xin-wei FENG Dong-dong |
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| Affiliation: | HAO Jun-jie,XIN Jian-hong,ZHAO Xin-wei,FENG Dong-dong(No.11 Geological Party,Hebei Exploration Bureau of Geology and Mineral Resources,Xingtai,Hebei 054000,China) |
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| Abstract: | Based on the study of REE geochemistry of Baijian iron deposit in Shahe,Hebei Province,REE in skarns,ores and strata limestone have the similar characteristics,and ores are closely related to magmatic rocks(diorites).REE pattern of ores show the same distribution pattern of limestones of wallrocks.A probable reason of the phenomenon is infered that ore-forming fluids or magma experienced long distance transportation after forming,went through structures such as faults to the deposition place,and then acted ... |
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| Keywords: | REE geochemistry Han-Xing type iron deposit Baijian iron deposit in Shahe Hebei Province |
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