首页 | 本学科首页   官方微博 | 高级检索  
     检索      

东天山黄山西含铜镍矿镁铁-超镁铁岩体岩浆地幔源区特征研究
引用本文:邓宇峰,宋谢炎,陈列锰,程松林,张新利,李军.东天山黄山西含铜镍矿镁铁-超镁铁岩体岩浆地幔源区特征研究[J].岩石学报,2011,27(12):3640-3652.
作者姓名:邓宇峰  宋谢炎  陈列锰  程松林  张新利  李军
作者单位:1. 中国科学院地球化学研究所矿床地球化学国家重点实验室,贵阳550002;中国科学院研究生院,北京100049;合肥工业大学资源与环境工程学院,合肥230009
2. 中国科学院地球化学研究所矿床地球化学国家重点实验室,贵阳,550002
3. 新疆地质矿产勘查开发局第六地质大队,哈密,839000
4. 新疆地质矿产勘查开发局,乌鲁木齐,830000
基金项目:本文受国家自然科学重点基金项目(40730420、40973038)、中科院"百人计划"、中科院知识创新方向性项目(KZCX2-YW-Q04)和矿床地球化学国家重点实验室课题(KCZX20090105)联合资助.
摘    要:新疆黄山-镜儿泉铜镍成矿带位于中亚造山带东天山晚古生代造山带,铜镍总储量达百万吨,是我国仅次于金川硫化物矿床的铜镍矿基地.黄山西铜镍矿床是该成矿带内一个大型矿床,Cu平均品位是0.31%,总储量18.8×104t,Ni平均品位是0.49%,总储量32×104t.黄山西岩体岩石地球化学特征与塔里木大火成岩省镁铁-超镁铁侵入岩和玄武岩存在明显差异;较之塔里木大火成岩省镁铁-超镁铁岩体( 269~ 274Ma),黄山-镜儿泉铜镍成矿带镁铁-超镁铁岩体的形成更早(274~298Ma);此外,成矿带内并没有早二叠溢流玄武岩大量出露.黄山西岩体各岩相的MORB标准化微量元素蛛网图显示明显的Nb、Ta、Ti负异常,(87Sr/86Sr)269Ma值较低(0.7034~0.7037),而εNd(269Ma)较高(5.14~ 7.14),这些地球化学特征难以用地壳混染来解释,而显示其原始岩浆来自于交代地幔的部分熔融,表明原始岩浆可能形成于活动大陆边缘.然而,黄山西岩体的岩相学特征与阿拉斯加型岩体存在差别,因此,不能排除交代地幔的部分熔融发生于碰撞造山后的伸展阶段的可能,软流圈的上涌可能起到重要作用.

关 键 词:黄山-镜儿泉铜镍成矿带  黄山西镁铁-超镁铁岩体  岩浆铜镍矿床  交代地幔  软流圈
收稿时间:2/9/2010 12:00:00 AM
修稿时间:2010/4/20 0:00:00

Features of the mantle source of the Huangshanxi Ni-Cu sulfide-bearing mafic-ultramafic intrusion, eastern Tianshan
DENG YuFeng,SONG XieYan,CHEN LieMeng,CHENG SongLin,ZHANG XinLi and LI Jun.Features of the mantle source of the Huangshanxi Ni-Cu sulfide-bearing mafic-ultramafic intrusion, eastern Tianshan[J].Acta Petrologica Sinica,2011,27(12):3640-3652.
Authors:DENG YuFeng  SONG XieYan  CHEN LieMeng  CHENG SongLin  ZHANG XinLi and LI Jun
Institution:State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China;School of Resources and Environmental Engineering, Hefei University of Technology, Heifei 230009, China;State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China;Xinjiang Bureau of Geology and Exploration, Urumchi 830000, China;No. 6 Geological Team, Xinjiang Bureau of Geology and Exploration, Hami 839000, China;No. 6 Geological Team, Xinjiang Bureau of Geology and Exploration, Hami 839000, China
Abstract:Huangshan-Jingerquan copper-nickel mineralization belt is located in Late Paleozoic eastern Tianshan orogenic belt, which is part of the Central Asian orogenic belt. This mineralization belt is the second largest copper-nickel deposit base in China other than the Jinchuan deposit, with total reserves of copper, nickel up to one million tons. The Huangshanxi Cu-Ni ore deposit is one of the large deposits in the Huangshan-Jingerquan copper-nickel mineralization belt. The average grade of copper is 0.31%, with...
Keywords:Huangshan-Jingerquan Cu-Ni mineralization belt  Huangshanxi mafic-ultramafic intrusion  Magma Cu-Ni sulfide deposit  Metasomatized mantle  Asthenosphere
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《岩石学报》浏览原始摘要信息
点击此处可从《岩石学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号