| 西藏罗布莎铁族元素金属互化物矿物及其成因探讨 |
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| 引用本文： | 施倪承,李国武,熊明,马喆生.西藏罗布莎铁族元素金属互化物矿物及其成因探讨[J].岩石矿物学杂志,2005,24(5):443-446. |
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| 作者姓名： | 施倪承 李国武 熊明 马喆生 |
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| 作者单位： | 中国地质大学,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目(40472025) |
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| 摘 要： | 对西藏罗布莎铬铁矿中的铁族元素金属及金属互化物矿物进行了X射线衍射测定,结果显示其归属于镍纹石、自然铁、钴铁矿及铁镍矿4种矿物。它们与超高压矿物方铁矿、铂族元素矿物等连生,形成于深部的高还原环境,矿物的化学成分与地核十分相近,故认为它们可能来自于地幔及地核。
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| 关 键 词： | 铁族元素金属及金属互化物矿物 X射线衍射 铬铁矿 西藏 |
| 文章编号： | 1000-6524（2005）05-0443-04 |
| 收稿时间： | 2005-07-22 |
| 修稿时间： | 2005-07-222005-08-03 |
Metallic and intermetallic compounds of Fe-group elements from Luobusa, Tebit, and their origin |
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| SHI Ni-cheng,LI Guo-wu,XIONG Ming and MA Zhe-sheng.Metallic and intermetallic compounds of Fe-group elements from Luobusa, Tebit, and their origin[J].Acta Petrologica Et Mineralogica,2005,24(5):443-446. |
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| Authors: | SHI Ni-cheng LI Guo-wu XIONG Ming and MA Zhe-sheng |
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| Abstract: | Metallic and intermetallic compounds of Fe-group elements from Luobusa ophiolite chromitites were studied by X-ray diffraction (XRD) analysis. The results indicate that they belong to four mineral species. These minerals are intergrown with such minerals as UHP mineral wustite and platinum-group minerals. Formed under the strong reduction condition of great depth, these minerals are similar to the earth's core in chemical composition. It is thus held that the iron-group minerals might have been derived from the mantle or the core of the earth. |
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| Keywords: | metallic and intermetallic compounds of Fe-group elements X-ray diffraction chromite Tibet |
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