Volcanic lavas of the Yixian Formation in western Liaoning province, China: Products of lower crust delamination or magma mixing?
文献类型：期刊论文
| 作者 | Zhang HongFu1; Shao JiAn2 |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2008 |
| 卷号 | 24期号:1页码:37-48 |
| 关键词 | western Liaoning province Yixian Formation volcanic lava magma mixing lithosphere extension |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | The authors, based on the systematics of all the published major, trace elemental and isotopic data of volcanic lavas from the Yixian Formation, western Liaoning Province, found that the volcanic lavas of the Yixian Formation are composed dominantly of mafic-intermediate components with the increasing intermediate-acidic components in the upper sequence. Their high Mg-# values and adakitic geochemical characteristics are not the primary features of the initial magma, and thus cannot be regarded as the powerful evidence for the existence of lower crust delamination in the region. The mafic components of the Yixian Formation were originally derived from the lithospheric mantle, which were previously modified by the subducted oceanic crust. The mixing of mafic magma with ancient lower crust-derived magma to a certain degree produced the various volcanic lavas of the Yixian Formation. Therefore, volcanic lavas of the Yixian Formation are the products of magma mixing rather than lower crust delamination. Basaltic underplated lower crust was involved in the origin of these volcanic lavas, with little and limited contribution of the asthenosphere. |
| WOS关键词 | LITHOSPHERIC MANTLE BENEATH ; HIGH-MG ANDESITES ; EASTERN CHINA ; EXPERIMENTAL CONSTRAINTS ; TRACE-ELEMENT ; PB ISOTOPE ; CRATON ; BASALTS ; ADAKITES ; ROCKS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000254774000003 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/69876]  |
| 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 | 1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang HongFu,Shao JiAn. Volcanic lavas of the Yixian Formation in western Liaoning province, China: Products of lower crust delamination or magma mixing?[J]. ACTA PETROLOGICA SINICA,2008,24(1):37-48. |
| APA | Zhang HongFu,&Shao JiAn.(2008).Volcanic lavas of the Yixian Formation in western Liaoning province, China: Products of lower crust delamination or magma mixing?.ACTA PETROLOGICA SINICA,24(1),37-48. |
| MLA | Zhang HongFu,et al."Volcanic lavas of the Yixian Formation in western Liaoning province, China: Products of lower crust delamination or magma mixing?".ACTA PETROLOGICA SINICA 24.1(2008):37-48. |
入库方式： OAI收割
来源：地质与地球物理研究所
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