Peridotite-melt interaction: a key point for the destruction of cratonic lithospheric mantle
文献类型:期刊论文
作者 | Zhang HongFu |
刊名 | CHINESE SCIENCE BULLETIN
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出版日期 | 2009-10-01 |
卷号 | 54期号:19页码:3417-3437 |
关键词 | North China Craton lithospheric mantle peridotite-melt interaction melt origin destruction of the craton |
ISSN号 | 1001-6538 |
DOI | 10.1007/s11434-009-0307-z |
英文摘要 | This paper presents an overview of recent studies dealing with different ages of mantle peridotitic xenoliths and xenocrysts from the North China Craton, with aim to provide new ideas for further study on the destruction of the North China Craton. Re-Os isotopic studies suggest that the lithospheric mantle of the North China Craton is of Archean age prior to its thinning. The key reason why such a low density and highly refractory Archean lithospheric mantle would be thinned is changes in composition, thermal regime, and physical properties of the lithospheric mantle due to interaction of peridotites with melts of different origins. Inward subduction of circum craton plates and collision with the North China Craton provided not only the driving force for the destruction of the craton, but also continuous melts derived from partial melting of subducted continental or oceanic crustal materials that resulted in the compositional change of the lithospheric mantle. Regional thermal anomaly at ca. 120 Ma led to the melting of highly modified lithospheric mantle. At the same time or subsequently lithospheric extension and asthenospheric upwelling further reinforced the melting and thinning of the lithospheric mantle. Therefore, the destruction and thinning of the North China Craton is a combined result of peridotite-melt interaction (addition of volatile), enhanced regional thermal anomaly (temperature increase) and lithospheric extension (decompression). Such a complex geological process finally produced a "mixed" lithospheric mantle of highly chemical heterogeneity during the Mesozoic and Cenozoic. It also resulted in significant difference in the composition of mantle peridotitic xenoliths between different regions and times. |
语种 | 英语 |
WOS记录号 | WOS:000271025500006 |
出版者 | SCIENCE CHINA PRESS |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/71052] ![]() |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Zhang HongFu |
作者单位 | Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang HongFu. Peridotite-melt interaction: a key point for the destruction of cratonic lithospheric mantle[J]. CHINESE SCIENCE BULLETIN,2009,54(19):3417-3437. |
APA | Zhang HongFu.(2009).Peridotite-melt interaction: a key point for the destruction of cratonic lithospheric mantle.CHINESE SCIENCE BULLETIN,54(19),3417-3437. |
MLA | Zhang HongFu."Peridotite-melt interaction: a key point for the destruction of cratonic lithospheric mantle".CHINESE SCIENCE BULLETIN 54.19(2009):3417-3437. |
入库方式: OAI收割
来源:地质与地球物理研究所
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