Transformation of lithospheric mantle through peridotite-melt reaction: A case of Sino-Korean craton
文献类型：期刊论文
| 作者 | Zhang, HF |
| 刊名 | EARTH AND PLANETARY SCIENCE LETTERS
 |
| 出版日期 | 2005-09-15 |
| 卷号 | 237期号:3-4页码:768-780 |
| 关键词 | Olivine Xenocryst Peridotite-melt Reaction Lithospheric Mantle Sino-korean Craton |
| ISSN号 | 0012-821X |
| DOI | 10.1016/j.epsl.2005.06.041 |
| 英文摘要 | Early Cretaceous Fangcheng basalts, erupted in Luxi region of Shandong Province, China, contain olivine xenocrysts with clear compositional zonations, which provide evidence for important mantle-melt reactions. These zoned olivines are fine-grained (200 similar to 900 mu m) and the core of the relatively larger grains have compositions (such as Mg#= 88 similar to 92) similar to those of olivines from the mantle peridotitic xenoliths entrained in Cenozoic basalts from the Sino-Korean craton and their rims (Mg#= 76 similar to 83) are compositionally close to those of the olivine phenocrysts from the host basalts. These compositional features as well as textural characteristics such as rounded and embayed crystal shape, well-developed cracks and grain sizes demonstrate that these olivines are mantle xenocrysts disaggregated from the lithospheric peridotites. The zoned texture was formed through rapid reaction between olivine and host melt. This may suggest that mantle-melt reaction was once very significant in the Mesozoic lithospheric mantle beneath the southeastern portion of the Sino-Korean craton, which we consider to be responsible for the replacement of lithospheric mantle from the Paleozoic refractory (high-Mg) peridotitic mantle to the late Mesozoic fertile (low-Mg) and enriched mantle with the loss of more than 120 km Archaean lithospheric keel in the region. (c) 2005 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000232155200031 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65316]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang, HF |
| 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, HF. Transformation of lithospheric mantle through peridotite-melt reaction: A case of Sino-Korean craton[J]. EARTH AND PLANETARY SCIENCE LETTERS,2005,237(3-4):768-780. |
| APA | Zhang, HF.(2005).Transformation of lithospheric mantle through peridotite-melt reaction: A case of Sino-Korean craton.EARTH AND PLANETARY SCIENCE LETTERS,237(3-4),768-780. |
| MLA | Zhang, HF."Transformation of lithospheric mantle through peridotite-melt reaction: A case of Sino-Korean craton".EARTH AND PLANETARY SCIENCE LETTERS 237.3-4(2005):768-780. |
入库方式： OAI收割
来源：地质与地球物理研究所
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