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
Petrogenesis and mantle source characteristics of the late Cenozoic Baekdusan (Changbaishan) basalts, North China Craton

文献类型：期刊论文

作者Choi, Hyun-Ok2; Choi, Sung Hi2; Lee, Youn Soo3; Ryu, Jong-Sik4; Lee, Der-Chuen5; Lee, Seung-Gu7; Sohn, Young Kwan1; Liu, Jia-qi6
刊名GONDWANA RESEARCH
出版日期2020-02-01
卷号78页码:156-171
ISSN号1342-937X
关键词Baekdusan (Changbaishan) Sr-Nd-Pb-Hf-Mg isotopes Recycled ancient silicate sediment Carbonated eclogite Mantle transition zone
DOI10.1016/j.gr.2019.08.004
英文摘要Late Cenozoic intraplate basaltic rocks in northeastern China have been interpreted as being derived from a mantle source composed of DMM and EM1 components. To constrain the origin of the enriched mantle component, we have now determined the geochemical compositions of basaltic rocks from the active Baekdusan volcano on the border of China and North Korea. The samples show LREE-enriched patterns, with positive Eu and negative Ce anomalies. On a trace element distribution diagram, they show typical oceanic island basalt (OIB)-like LILE enrichments without significant Nb or Ta depletions. However, compared with OIB, they show enrichments in Ba, Rb, K, Pb, Sr, and P. The Nb/U ratios are generally within the range of OIB, but the Ce/Pb ratios are lower than those of OIB. Olivine phenocrysts are characterized by low Ca and high Ni contents. The radiogenic isotopic characteristics (Sr-87/Sr-86 =0.70449 to 0.70554; epsilon(Nd) = -2.0 to +1.8; epsilon(Hf) = -1.7 to +6.1; Pb-206/Pb-204 = 17.26 to 18.12) suggest derivation from an EM1-like source together with an Indian MORB-like depleted mantle. The Mg isotopic compositions (delta Mg-26 = -0.39 +/- 0.17 parts per thousand) are generally lower than the average upper mantle, indicating carbonates in the source. The Sr-87/Sr-86 ratios decrease with decreasing delta Mg-26 values whereas the Nd-143/Nd-144 and (Nb/La)(N) ratios increase. These observations suggest the mantle source of the Baekdusan basalts contained at least two components that resided in the mantle transition zone (MTZ): (1) recycled subducted ancient (similar to 2.2-1.6 Ga) terrigenous silicate sediments, possessing EM1-like Sr-Nd-Pb-Hf isotopic signatures and relatively high values of delta Mg-26; and (2) carbonated eclogites with relatively MORB-like radiogenic isotopic compositions and low values of delta Mg-26. These components might have acted as metasomatizing agents in refertilizing the asthenosphere, eventually influencing the composition of the MTZ-derived plume that produced the Baekdusan volcanism. (c) 2019 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
WOS关键词POTASSIC VOLCANIC-ROCKS ; LITHOSPHERE-ASTHENOSPHERE INTERACTION ; TRACE-ELEMENT FRACTIONATION ; ND ISOTOPIC COMPOSITION ; GREATER KHINGAN RANGE ; BENEATH NE CHINA ; TRANSITION ZONE ; INTRAPLATE VOLCANISM ; MILLENNIUM ERUPTION ; MELTING EXPERIMENTS
资助项目Korea Meteorological Administration Research and Development Program[KMI2018-01510]
WOS研究方向Geology
语种英语
出版者ELSEVIER
WOS记录号WOS:000522973500010
资助机构Korea Meteorological Administration Research and Development Program ; Korea Meteorological Administration Research and Development Program ; Korea Meteorological Administration Research and Development Program ; Korea Meteorological Administration Research and Development Program ; Korea Meteorological Administration Research and Development Program ; Korea Meteorological Administration Research and Development Program ; Korea Meteorological Administration Research and Development Program ; Korea Meteorological Administration Research and Development Program
源URL[http://ir.iggcas.ac.cn/handle/132A11/95505]  
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
通讯作者Choi, Sung Hi
作者单位1.Gyeongsang Natl Univ, Dept Geol, Jinju 52828, South Korea
2.Chungnam Natl Univ, Dept Geol Sci, Daejeon 34134, South Korea
3.POSTECH, Div Environm Sci & Engn, Pohang 37673, Gyeongbuk, South Korea
4.Pukyong Natl Univ, Dept Earth & Environm Sci, Busan 48513, South Korea
5.Acad Sinica, Inst Earth Sci, Taipei 11529, Taiwan
6.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
7.Korea Inst Geosci & Mineral Resources, Daejeon 34132, South Korea
推荐引用方式
GB/T 7714		 Choi, Hyun-Ok,Choi, Sung Hi,Lee, Youn Soo,et al. Petrogenesis and mantle source characteristics of the late Cenozoic Baekdusan (Changbaishan) basalts, North China Craton[J]. GONDWANA RESEARCH,2020,78:156-171.
APA Choi, Hyun-Ok.,Choi, Sung Hi.,Lee, Youn Soo.,Ryu, Jong-Sik.,Lee, Der-Chuen.,...&Liu, Jia-qi.(2020).Petrogenesis and mantle source characteristics of the late Cenozoic Baekdusan (Changbaishan) basalts, North China Craton.GONDWANA RESEARCH,78,156-171.
MLA Choi, Hyun-Ok,et al."Petrogenesis and mantle source characteristics of the late Cenozoic Baekdusan (Changbaishan) basalts, North China Craton".GONDWANA RESEARCH 78(2020):156-171.

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。