中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 地质与地球物理研究所
  3. 中国科学院地质与地球物理研究所
  4. 中国科学院新生代地质与环境重点实验室
Nature and evolution of the lithospheric mantle revealed by water contents and He-Ar isotopes of peridotite xenoliths from Changbaishan and Longgang basalts in Northeast China

文献类型：期刊论文

作者Xu, Qinghu1,2; Liu, Jiaqi1,2; He, Huaiyu2,3,4; Zhang, Yunhui5
刊名SCIENCE BULLETIN
出版日期2019-09-30
卷号64期号:18页码:1325-1335
ISSN号2095-9273
关键词Subcontinental lithospheric mantle Peridotite xenoliths Mineral chemistry He-Ar isotopes Water contents Northeast China
DOI10.1016/j.scib.2019.07.006
英文摘要The nature and evolution of the lithospheric mantle underlying Northeast (NE) China were investigated by assessing the mineral chemistry, water contents, and noble gas (He-Ar) isotopes of peridotite xenoliths captured by Cenozoic basalts from the Changbaishan and Longgang regions. The xenoliths, which have 863-1141 degrees C equilibration temperatures, primarily comprise spinel lherzolites and rare spinel harzburgites. The Mg-# (Fo) values of olivine in the peridotite xenoliths vary from 86.9 to 91.3. The clinopyroxenes have high Ti/Eu and low (La/Yb) N, and their chondrite-normalized rare earth elements (REEs) exhibit light REE-depletion to-enrichment patterns, indicating that the mantle underneath the investigated region was predominantly subjected to partial melting (1%-10%) and was metasomatized by silicate melts. The measured He-3/He-4 ratios of the Changbaishan xenoliths have a narrow range from 5.8 Ra to 8.4 Ra with an average of 7.4 Ra. The He-3/He-4 isotopic ratios of the Longgang xenoliths varied from 4.7 Ra to 8.1 Ra with an average of 5.9 Ra; slightly lower than the Changbaishan xenoliths. The whole-rock H2O contents of the studied peridotite ranged from 9 to 132 ppm. The high H2O contents in excess of 50 ppm (up to 132 ppm) might represent newly accreted and cooled asthenospheric materials, while those with H2O contents lower than 50 ppm (as little as 9 ppm) may represent thinned, relic, ancient lithospheric mantle. These geochemical evidences, in combination with published data, indicated that the lithospheric mantle beneath the Changbaishan and Longgang in NE China is dominated by the younger and more fertile lithospheric mantle with a minor ancient and refractory keel. In addition, the lithospheric mantle of this area was metasomatized by melts related to the recent subduction event (e.g., Pacific oceanic plate). Therefore, the westward-dipping Pacific oceanic plate subduction had an important contribution to the transformation of the lithospheric mantle beneath NE China. (C) 2019 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
WOS关键词SINO-KOREAN CRATON ; TRACE-ELEMENTS ; NOBLE-GASES ; NE CHINA ; SPINEL-PERIDOTITES ; CENOZOIC BASALTS ; CATHAYSIA BLOCK ; ORTHO-PYROXENE ; POPPING ROCK ; BENEATH
资助项目Key Research Project of Frontier Sciences of Chinese Academy of Sciences[QYZDY-SSW-DQC030] ; National Natural Science Foundation of China[41476034]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者ELSEVIER
WOS记录号WOS:000487226500009
资助机构Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; Key Research Project of Frontier Sciences of Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/93698]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Liu, Jiaqi
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Coll Earth Sci, Beijing 100029, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
5.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Sichuan, Peoples R China
推荐引用方式
GB/T 7714		 Xu, Qinghu,Liu, Jiaqi,He, Huaiyu,et al. Nature and evolution of the lithospheric mantle revealed by water contents and He-Ar isotopes of peridotite xenoliths from Changbaishan and Longgang basalts in Northeast China[J]. SCIENCE BULLETIN,2019,64(18):1325-1335.
APA Xu, Qinghu,Liu, Jiaqi,He, Huaiyu,&Zhang, Yunhui.(2019).Nature and evolution of the lithospheric mantle revealed by water contents and He-Ar isotopes of peridotite xenoliths from Changbaishan and Longgang basalts in Northeast China.SCIENCE BULLETIN,64(18),1325-1335.
MLA Xu, Qinghu,et al."Nature and evolution of the lithospheric mantle revealed by water contents and He-Ar isotopes of peridotite xenoliths from Changbaishan and Longgang basalts in Northeast China".SCIENCE BULLETIN 64.18(2019):1325-1335.

入库方式： OAI收割

来源：地质与地球物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。