Metasomatism of mesozoic and cenozoic lithospheric mantle beneath the north china craton: Evidence from phlogopite-bearing mantle xenoliths
文献类型：期刊论文
| 作者 | Zhao, X. M.; Zhang, H. F.; Zhu, X. K.; Zhang, W. H.; Yang, Y. H.; Tang, Y. J. |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2007-06-01 |
| 卷号 | 23期号:6页码:1281-1293 |
| 关键词 | cenozoic basalt phlogopite-bearing mantle xenolith mantle metasomatism lithospheric mantle north china craton |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | This paper reports the mineral compositions, clinopyroxene trace element concentrations and Sr-Nd isotopes for the newly-discovered phlogopite-bearing spinel lherzolite and olivine clinopyroxenite xenoliths from three different localities ( Hannuoba, Hebei Province; Jining Sanyitang, Inner Mongolia; Hebi, Henan Province) of the North China Craton. Systematic comparison with those phlogopite-free spinel lherzolite xenoliths from the same localities reveals that the pblogopite-bearing peridotitic xenoliths have relatively higher Al2O3, CaO, Na2O, K2O, TiO2 contents and lower MgO contents than those phlogopite-free counterparts. The former also has higher LREE concentrations, but relatively less radiogenic Sr-Nd isotopic ratios. This demonstrates that mantle metasomatism can not only enrich the basaltic components and trace element concentrations, but also make a decrease in Mg-# of the peridotites and olivines and a relative depletion in Sr-Nd isotopes. Rb-87/Sr-86-Sr-87/(86) Sr isochrons of the phlogopite-bearing xenoliths indicate that mantle metasomatism happened in the Mesozoic and/or Cenozoic time. The metasomatic agent was derived from the asthenosphere. The result also manifests that the widespread similarity of the geochemical features such as major and trace elements and isotopic compositions in the Cenozoic lithospheric mantle beneath the North China Craton to those "oceanic" lithospheric mantle could be as a result of the ubiquitous presence of the interaction between the old refractory peridotites and the infiltrated asthenospheric melt, rather than the actually newly-accreted lithospheric mantle. |
| WOS关键词 | SINO-KOREAN CRATON ; PYROXENITE XENOLITHS ; PERIDOTITE XENOLITHS ; INNER-MONGOLIA ; EASTERN CHINA ; TRACE-ELEMENT ; GEOCHEMISTRY ; HANNUOBA ; ND ; BASALTS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000248791900005 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68420]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhao, X. M. |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Chinese Acad Geol Sci, Inst Geol, Key Lab Isotop Geol Minist Land & Resources, Beijing 100037, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, X. M.,Zhang, H. F.,Zhu, X. K.,et al. Metasomatism of mesozoic and cenozoic lithospheric mantle beneath the north china craton: Evidence from phlogopite-bearing mantle xenoliths[J]. ACTA PETROLOGICA SINICA,2007,23(6):1281-1293. |
| APA | Zhao, X. M.,Zhang, H. F.,Zhu, X. K.,Zhang, W. H.,Yang, Y. H.,&Tang, Y. J..(2007).Metasomatism of mesozoic and cenozoic lithospheric mantle beneath the north china craton: Evidence from phlogopite-bearing mantle xenoliths.ACTA PETROLOGICA SINICA,23(6),1281-1293. |
| MLA | Zhao, X. M.,et al."Metasomatism of mesozoic and cenozoic lithospheric mantle beneath the north china craton: Evidence from phlogopite-bearing mantle xenoliths".ACTA PETROLOGICA SINICA 23.6(2007):1281-1293. |
入库方式： OAI收割
来源：地质与地球物理研究所
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