| 大陆岩石圈地幔的组成与交代作用 |
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| 引用本文： | 茹艳娇.大陆岩石圈地幔的组成与交代作用[J].地质与资源,2010,19(4):311-314,329. |
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| 作者姓名： | 茹艳娇 |
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| 作者单位： | 长安大学 地球科学与资源学院, 陕西 西安 710054;西安地质矿产研究所, 陕西 西安 710054 |
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| 摘 要： | 结合前人研究成果，总结了大陆岩石圈地幔的研究方法和研究对象，并对研究方法及研究对象作了评述.Griffin等将岩石圈地幔分为Archon、Proton、Tecton三类.Archon大陆岩石圈地幔相对原始地幔来说是强烈亏损的；大多数Tecton相对于原始地幔是适度亏损的；而Proton的组成在Archon和Tecton大陆岩石圈地幔2个端元之间.总体上看，古老岩石圈地幔亏损程度最大，而年轻岩石圈地幔相对古老岩石圈富集.富集过程主要与地幔交代作用有关.从交代作用的表现形式、交代剂的性质与来源方面，通过研究地幔捕虏体/捕掳晶，可以很好地认识岩石圈地幔的富集过程.
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| 关 键 词： | 大陆岩石圈地幔 富集过程 地幔交代 |
| 收稿时间： | 2010-06-08 |
COMPOSITION AND METASOMATISM OF SUB-CONTINENTAL LITHOSPHERIC MANTLE |
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| RU Yan-jiao.COMPOSITION AND METASOMATISM OF SUB-CONTINENTAL LITHOSPHERIC MANTLE[J].Geology and Resources,2010,19(4):311-314,329. |
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| Authors: | RU Yan-jiao |
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| Institution: | College of Earth Science and Land Resources, Chang'an University, Xi'an 710054, China;Xi'an Institute of Geology and Mineral Resources, Xi'an 710054, China |
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| Abstract: | Based on previous researches,the methods and objects for the sub-continental lithospheric mantle are reviewed and summarized.The lithospheric mantle is classified into three types by Griffin,i.e.Archon,Proton and Tecton.The composition of the Archon continental lithospheric mantle is a strong loss relatively to the primitive mantle;that of most of the Tecton is modest loss;while that of the Proton continental lithospheric mantle is between the former two.Generally speaking,ancient lithospheric mantle is the most depleted;while young lithospheric mantle is relatively richer than the ancient one.The enriching process is mainly concerned with mantle metasomatism.From the aspects of metasomatic patterns and the nature and source of media,with study on the xenoliths/xenocrysts of mantle,the enriching processes of lithospheric mantle can be well recognized. |
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| Keywords: | sub-continental lithospheric mantle enriching process mantle metasomatism |
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