Mantle heterogeneity beneath Changbaishan volcanic province: evidence from geochemical study on trace elements and isotopes
文献类型：期刊论文
| 作者 | Sui, J. L.; Fan, Q. C.; Liu, J. Q.; Guo, Z. F. |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2007-06-01 |
| 卷号 | 23期号:6页码:1512-1520 |
| 关键词 | changbaishan volcanic province mantle heterogeneity fractionation of Nb/Ta |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | The complexity of continental volcanism is a global phenomenon, which has confused the geologists for a long time. The Changbaishan Volcanic Province ( CVP), located at the active margin of the eastern Asia Plate with large scale volcanic and tectonic activity, provides a natural laboratory for exploring continental volcanisms and their mantle sources. Tianchi Volcanic field (TV) and Longgang Volcanic field ( LV) are two important parts of the CVP. Comparison on petrology and geochemistry indicates that volcanic rocks from the TV and the LV came from different mantle sources, the LV came from primary mantle source, while the TV came from hybrid mantle sources of primary mantle and enriched mantle. Distance between LV and TVP is only about 40km, so the mantle source of CVP has small scale heterogeneity. Volcanic rocks of TV have strong negative Ta abnormity and significant fractionation of Nb/Ta ( Nb/Ta = 10 similar to 50, some basalts even over 100). This fact, combined with the Sr, Nd and Pb isotopic data, indicates that the TV mantle source experienced reactions between melts from partial melting of the subducted slab and minor minerals, such as rutile, while LV has no geochemical signals of such contamination. |
| WOS关键词 | CHEMICAL GEODYNAMICS ; TIANCHI VOLCANO ; TRANSITION ZONE ; CRUSTAL GROWTH ; CONSTRAINTS ; ERUPTION ; CHINA ; SLAB ; TRANSPORTATION ; CONTINENTS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000248791900025 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68566]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Sui, J. L. |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.China Earthquake Adm, Inst Geol, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sui, J. L.,Fan, Q. C.,Liu, J. Q.,et al. Mantle heterogeneity beneath Changbaishan volcanic province: evidence from geochemical study on trace elements and isotopes[J]. ACTA PETROLOGICA SINICA,2007,23(6):1512-1520. |
| APA | Sui, J. L.,Fan, Q. C.,Liu, J. Q.,&Guo, Z. F..(2007).Mantle heterogeneity beneath Changbaishan volcanic province: evidence from geochemical study on trace elements and isotopes.ACTA PETROLOGICA SINICA,23(6),1512-1520. |
| MLA | Sui, J. L.,et al."Mantle heterogeneity beneath Changbaishan volcanic province: evidence from geochemical study on trace elements and isotopes".ACTA PETROLOGICA SINICA 23.6(2007):1512-1520. |
入库方式： OAI收割
来源：地质与地球物理研究所
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