| 东秦岭松树沟蛇绿岩中超镁铁质岩及铬铁矿的成因探讨 |
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| 引用本文： | 董云鹏,周鼎武,张国伟.东秦岭松树沟蛇绿岩中超镁铁质岩及铬铁矿的成因探讨[J].地质找矿论丛,1996,11(1):33-43. |
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| 作者姓名： | 董云鹏 周鼎武 张国伟 |
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| 作者单位： | 西北大学地质系 |
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| 摘 要： | 地质、岩石地球化学及构造变形特征综合研究表明，松树沟超镁铁质岩是底辟侵位于上覆玄武岩中的地幔岩部分熔残余体，该残余体在底辟上过程中发生塑性变形，并再次部分熔融，其残余物为橄榄质糜棱岩，熔体部分形成中粗粒纯橄岩板状或脉状体及其伴生的铬铁矿。
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| 关 键 词： | 超镁铁质岩 铬铁矿 蛇绿岩 成因 |
| 收稿时间： | 1995/11/17 0:00:00 |
| 修稿时间： | 1996/1/29 0:00:00 |
DISCUSSION ON THE GENESIS OF ULTRA MAFIC ROCKS AND Cr ORE IN OPHIOLITE, SHONG SHU GOU, EAST QINLING AREA |
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| Dong Yunpeng,Zhou Dingwu and Zhang Guowei.DISCUSSION ON THE GENESIS OF ULTRA MAFIC ROCKS AND Cr ORE IN OPHIOLITE, SHONG SHU GOU, EAST QINLING AREA[J].Contributions to Geology and Mineral Resources Research,1996,11(1):33-43. |
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| Authors: | Dong Yunpeng Zhou Dingwu and Zhang Guowei |
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| Institution: | The Nothwest University, Xi''an 710069;The Nothwest University, Xi''an 710069;The Nothwest University, Xi''an 710069 |
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| Abstract: | Combination study of geology geochemistry, petrology and structural deformation on Song shu Gou ultral-mafic rocks shows that the ultra-mafic rocks were the partial melting mantle relics emplaced diapiricaly in the overlying basalt. And Partial melting took place again huring diapiration with medium-coarse dunite slabs and dykes and Cr ore in the melted parts. |
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