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新疆哈密白石泉铜镍矿区基性—超基性岩的形成时代及其地质意义
  Revised:March 31, 2005  点此下载全文
Cite This Paper:.2005.Age of the Baishiqun Mafic-Ultramafic Complex, Hami, Xinjiang and Its Geological Significance[J].Acta Geologica Sinica,79(4):498-502
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吴华  李华芹  莫新华  陈富文  路远发  梅玉萍  邓岗
中国地质大学,中国地质调查局宜昌地质矿产研究所,新疆维吾尔自治区地质矿产勘查开发局第六地质大队,中国地质调查局宜昌地质矿产研究所,中国地质调查局宜昌地质矿产研究所,中国地质调查局宜昌地质矿产研究所,新疆维吾尔自治区地质矿产勘查开发局第六地质大队 北京,100083,新疆维吾尔自治区地质矿产勘查开发局第六地质大队,哈密,839000,443003,哈密,839000,443003,443003,443003,哈密,839000
基金项目:国家重点基础研究发展规则项目(编号2001CB409810)资助成果。
中文摘要:白石泉铜镍矿床位于中天山地块北缘,沙泉子深大断裂南侧。矿体产于同源同期侵入的中基性—超基性岩体内,其含矿岩石为单辉橄榄岩和斜长橄辉岩。铜镍矿化无论从时间上和空间上都与岩体的侵位密切相关,矿床成因类型为岩浆熔离型铜镍硫化物矿床。锆石SHRIMP微区原位U-Pb年代学研究表明,石英闪长岩的年龄为285±10Ma、辉长闪长岩年龄为284±9Ma和辉长岩年龄为284±8Ma。三者在测定误差范围内十分一致,表明该含矿杂岩体的侵位及矿化作用均发生于晚石炭世末—早二叠世初,成岩成矿的动力学背景为造山期后伸展构造环境。
中文关键词:白石泉铜镍矿,SHRIMPU-Pb年代学,中天山,基性—超基性岩体
 
Age of the Baishiqun Mafic-Ultramafic Complex, Hami, Xinjiang and Its Geological Significance
WU Hua  LI Huaqin  MO Xinhua  CHEN Fuwen  LU Yuanfa  MEI Yuping  DENG Gang
keywords:Baishiquan Cu-Ni deposit,SHRIMP U-Pb ages,Middle Tianshan Mt.,mafic-ultramafic complex,
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