| 嵩山地区熊耳群火山岩岩石学、地球化学及成因探讨 |
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| 引用本文： | 谢良鲜,司荣军,王世炎,马瑞申.嵩山地区熊耳群火山岩岩石学、地球化学及成因探讨[J].地质找矿论丛,2014,29(3):408-416. |
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| 作者姓名： | 谢良鲜 司荣军 王世炎 马瑞申 |
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| 作者单位： | 1. 河南理工大学资源环境学院,河南焦作,454000
2. 河南省地质调查院,郑州,450000 |
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| 基金项目： | 国家自然科学基金项目，中国地质调查局项目 |
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| 摘 要： | 近年在河南省嵩山地区发现有熊耳群火山岩地层。通过岩石学、地球化学特征及成因研究,认为嵩山地区熊耳群火山岩主要为弱过铝质流纹岩,属于高钾钙碱性系列-钾玄岩系列,以高硅、高钾、过铝、贫钠、贫钙镁为特征;轻稀土富集,重稀土亏损,轻重稀土分馏较为明显,Eu强烈负异常,Ce微弱负异常;富Ba而贫Sr,Rb,U,富Zr而贫Nb,Th,Hf,Ta;岩石属A型岩浆作用产物,形成于板内拉张环境。
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| 关 键 词： | 嵩山地区 熊耳群火山岩 岩石学特征 地球化学特征 岩石成因 河南省 |
| 收稿时间： | 2013/6/27 0:00:00 |
Petrology, geochemistry and genesis for volcanics of Xiong'er Group in Songshan area |
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| XIE Liangxian,SI Rongjun,WANG Shiyan and MA Ruishen.Petrology, geochemistry and genesis for volcanics of Xiong'er Group in Songshan area[J].Contributions to Geology and Mineral Resources Research,2014,29(3):408-416. |
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| Authors: | XIE Liangxian SI Rongjun WANG Shiyan and MA Ruishen |
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| Institution: | XIE Liangxian,SI Rongjun,WANG Shiyan,MA Ruishen( 1.Institute of Resource and Environment, Henan Polytechnic University, Jiaozuo 454000, Henan, China; 2.Henan Institute of Geological Survey, Zhengzhou 450000, China;) |
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| Abstract: | In 2012 volcanics was found in Xiong＇er Group in Songshan area,Henan province.Study on petrology,geochemistry and genesis of the volcanics shows that the volcanics is weak peraluminous rhyolite belonging to High K calc alkaline rock series—K-Shoshonite series.It is the product of A-type magmatism formed in intra-plate environment and characterized by high siliceous,high potash,peraluminous materials and depletion of soda,calcareous and magnesian materials,LREE enrichment,HREE depletion,stronger faction of LREE and HREE,strong Eu negative anomly,very weak Ce negative anomly,Ba enrichment,depletion of Sr,Rb and U,Zr enrichment and depletion of Nb,Th,Hf and Ta. |
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| Keywords: | Xiong'er Group petrological characteristics geochemical characteristics petrogenesis Songshan area |
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