| 巴里坤下涝坝一带超基性岩特征及地质意义 |
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| 引用本文： | 魏新昌,王德贵,陈琪乐.巴里坤下涝坝一带超基性岩特征及地质意义[J].新疆地质,2012,30(Z1):20-24. |
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| 作者姓名： | 魏新昌 王德贵 陈琪乐 |
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| 作者单位： | 新疆维吾尔自治区地质矿产勘查开发局第一区域地质调查大队,新疆乌鲁木齐,830013 |
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| 基金项目： | 新疆巴里坤县下涝坝一带1:5万区域地质矿产调查(XJQDZ2009-06)项目资助 |
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| 摘 要： | 新疆巴里坤县下涝坝一带新发现的辉橄岩为铁质超基性岩,里特曼指数小于1,属极强太平洋型钙碱性岩系,非蛇绿岩组分.锆石SHRIMP U-Pb年龄测定表明,其形成年龄为(359±4.7) Ma.结合区域地质成果分析,超基性岩体形成时代为晚泥盆世.据近年邻区发现的超基性岩研究成果,认为该超基性岩对寻找与之有关的硫化物铜镍矿具重要意义.
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| 关 键 词： | 巴里坤 超基性岩 岩石化学特征 晚泥盆世 |
Characteristics of the Ultrabasic Rocks and Geological Implications in Xialaoba,Balikun,Xinjiang |
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| WEI Xin-chang
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WANG De-gui
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CHEN Qi-le.Characteristics of the Ultrabasic Rocks and Geological Implications in Xialaoba,Balikun,Xinjiang[J].Xinjiang Geology,2012,30(Z1):20-24. |
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| Authors: | WEI Xin-chang WANG De-gui CHEN Qi-le |
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| Institution: | (The First Geological Survey Party,Xinjiang Bureau of Geology and Mineral Exploration and Development,Urumqi,Xinjiang,830013,China) |
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| Abstract: | Study found that pyroxene peridotite is iron ultrabasic rocks in Xialaoba,Balikun,Rittmann index of less than 1;it is a strong Pacific-type calc-alkaline series,non-ophiolite.SHRIMP U-Pb Dating Of Zircons formation age of(359±4.7) Ma.According as regional geologic situation and geophysical prospecting results,ultrabasic rocks its formation age of late Devonian.So this ultrabasic rock is significant to look for sulfide copper-nickel mine. |
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| Keywords: | Balikun Ultrabasic rock Chemical characteristics Late Devonian |
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