Spinel-garnet phase transition zone of Cenozoic lithospheric mantle beneath the eastern China and western Qinling and its T-P condition
文献类型：期刊论文
| 作者 | Su, B. X.; Zhang, H. F.; Wang, Q. Y.; Sun, H.; Xiao, Y.; Ying, J. F. |
| 刊名 | ACTA PETROLOGICA SINICA
 |
| 出版日期 | 2007-06-01 |
| 卷号 | 23期号:6页码:1313-1320 |
| 关键词 | eastern China western qinling spinel/gamet phase transition zone lithospheric mantle |
| ISSN号 | 1000-0569 |
| 文献子类 | Article |
| 英文摘要 | Coexistent five-phase ( 0l + 0px + Cpx + Gt + Sp) mantle peridotitic xenoliths are direct samples from the spinel/garnet phase transition zone of the lithospheric mantle. Late Tertiary and Quaternary alkaline volcanic rocks, eastern China and western Qinling, contain few coexistent five-phase mantle peridotitic xenoliths, which provide an opportunity to directly study the phase transition zone of the lithospheric mantle beneath the regions. According to the spinel-garnet relationship, coexistent five-phase peridotitic xenoliths can be divided into three types. Type I is characterized by the granular spinel relicts surrounded with the garnet reaction rim. This type peridotite represents the upper limit of the phase transition zone, and can be called spinel-zone peridotites. Type 2 peridotite, in which garnet and spinel coexist without obvious phase transition relationship, represents the middle of the phase transition zone and can be called spinel-garnet transitional zone peridotite. Type 3 is typified by the garnet mantled with the reaction rim of microcrystal pyroxene and spinel. This type peridotite represents the bottom of the phase transition zone and can be named garnet-zone peridotite. Therefore, the depth and thickness of the phase transition zone can be determined through mineral compositions of peridotitic xenoliths and estimated T and P conditions. This paper, based on T and P estimates of spinel-garnet lherzolites in Late Tertiary and Quaternary alkaline volcanic rocks from eastern China and western Qinling, further constrains the depth and thickness of the phase transition zone in the Cenozoic lithospheric mantle beneath the eastern China. |
| WOS关键词 | SINO-KOREAN CRATON ; NORTH CHINA ; MINERAL CHEMISTRY ; COMPLEX SYSTEMS ; EVOLUTION ; XENOLITHS ; PETROGENESIS ; DESTRUCTION ; CONSTRAINTS ; TEMPERATURE |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000248791900008 |
| 出版者 | SCIENCE CHINA PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68414]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Su, B. X. |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, State key Lab lithospher Evolut, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550002, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, B. X.,Zhang, H. F.,Wang, Q. Y.,et al. Spinel-garnet phase transition zone of Cenozoic lithospheric mantle beneath the eastern China and western Qinling and its T-P condition[J]. ACTA PETROLOGICA SINICA,2007,23(6):1313-1320. |
| APA | Su, B. X.,Zhang, H. F.,Wang, Q. Y.,Sun, H.,Xiao, Y.,&Ying, J. F..(2007).Spinel-garnet phase transition zone of Cenozoic lithospheric mantle beneath the eastern China and western Qinling and its T-P condition.ACTA PETROLOGICA SINICA,23(6),1313-1320. |
| MLA | Su, B. X.,et al."Spinel-garnet phase transition zone of Cenozoic lithospheric mantle beneath the eastern China and western Qinling and its T-P condition".ACTA PETROLOGICA SINICA 23.6(2007):1313-1320. |
入库方式： OAI收割
来源：地质与地球物理研究所
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