| 黑河市五道沟地区早二叠世A型花岗岩成因 |
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| 引用本文： | 郭奎城,张文龙,杨晓平,王磊,史冬岩,于海涛,苏航.黑河市五道沟地区早二叠世A型花岗岩成因[J].吉林大学学报(地球科学版),2011,41(4):1077-1083. |
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| 作者姓名： | 郭奎城 张文龙 杨晓平 王磊 史冬岩 于海涛 苏航 |
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| 作者单位： | 黑龙江省地质调查研究总院齐齐哈尔分院,黑龙江齐齐哈尔,161005;黑龙江省地质调查研究总院齐齐哈尔分院,黑龙江齐齐哈尔,161005;黑龙江省地质调查研究总院齐齐哈尔分院,黑龙江齐齐哈尔,161005;黑龙江省地质调查研究总院齐齐哈尔分院,黑龙江齐齐哈尔,161005;黑龙江省地质调查研究总院齐齐哈尔分院,黑龙江齐齐哈尔,161005;黑龙江省地质调查研究总院齐齐哈尔分院,黑龙江齐齐哈尔,161005;黑龙江省地质调查研究总院齐齐哈尔分院,黑龙江齐齐哈尔,161005 |
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| 基金项目： | 中国地质调查局国土资源大调查项目(1212010510608) |
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| 摘 要： | 根据岩石学、岩石化学、地球化学及同位素等特征,对黑河市五道沟地区早二叠世碱长花岗岩进行了构造成因研究。该套岩石具高硅、富碱、低钙镁、偏铝质-过铝质特点,且富Rb、Th、K等大离子亲石元素,相对亏损Ba、Sr、P、Ti、Nb等元素,稀土元素具有典型的海鸥式分配样式,总体具有典型A型花岗岩特征;其形成于额尔古纳—兴安地块与松嫩—张广才岭地块挤压拼贴后的伸展环境。黑河市五道沟地区A型花岗岩的最新厘定对该地区晚古生代构造演化的研究及区域成矿规律的探讨具有重要意义。
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| 关 键 词： | 早二叠世 A型花岗岩 构造成因 黑河市五道沟 |
Origin of Early Permian A-Type Granite in the Wudaogou Area,Heihe City |
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| GUO Kui-cheng,ZHANG Wen-long,YANG Xiao-ping,WANG Lei,SHI Dong-yan,YU Hai-tao,SU Hang.Origin of Early Permian A-Type Granite in the Wudaogou Area,Heihe City[J].Journal of Jilin Unviersity:Earth Science Edition,2011,41(4):1077-1083. |
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| Authors: | GUO Kui-cheng ZHANG Wen-long YANG Xiao-ping WANG Lei SHI Dong-yan YU Hai-tao SU Hang |
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| Institution: | GUO Kui-cheng,ZHANG Wen-long,YANG Xiao-ping,WANG Lei,SHI Dong-yan,YU Hai-tao,SU HangQiqihar Branch,Heilongjiang Institute of Geological Survey,Qiqihar 161005,Heilongjiang,China |
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| Abstract: | This study focuses on the tectonic origin of the Early Permian alkali granites in the area of Wudaogou,Heihe based on its petrological,geochemical and isotopic characteristics.These granites are aluminous to peraluminous in composition and high in Si and alkali,but low in Ca and Mg.They are enriched in Rb,Th and K,but depleted in Ba,Sr,P,Ti and Nb.Their REE distributions are of typical gull-type pattern.Overall,they have features of typical A-type granite and were considered to be formed in an extensional e... |
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| Keywords: | Early Permian A-type granite tectonic origin Wudaogou of Heihe |
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