Generation of REE-rich syenite-(carbonatite) complex through lithosphere-asthenosphere interaction: An in-situ Sr-Nd-O isotopic study of the Mesozoic Weishan pluton, Northern China
文献类型:期刊论文
作者 | Zeng, Xi1; Li, Xiaochun1,2; Fan, Hongrui1,2; Lan, Tingguang3; Lan, Jun4; Su, Jianhui5; Zhang, Peng4; Yang, Kuifeng1,2; Zhao, Xinfu5 |
刊名 | JOURNAL OF ASIAN EARTH SCIENCES |
出版日期 | 2022-06-01 |
卷号 | 230页码:14 |
ISSN号 | 1367-9120 |
关键词 | Sr -Nd -O isotopes Asthenosphere-lithosphere interaction Syenite-carbonatite REE Weishan |
DOI | 10.1016/j.jseaes.2022.105191 |
英文摘要 | Carbonatite-alkaline complexes are commonly derived from the mantle. However, whether the source is litho-spheric or asthenospheric mantle remains debated. In order to better understand this issue, this paper conducts a Sr-Nd-O isotopic study on the Early Cretaceous, Weishan REE-rich syenite-(carbonatite) complex, Northern China. Two types of apatite are identified from the Weishan complex, namely magmatic and xenocrystic apatite. In-situ Sr-Nd isotopic analyses on magmatic apatite yielded (Sr-87/Sr-86)(i) from 0.70690 to 0.70719, and epsilon(Nd)(t) from -7.6 to -8.8. The pristine calcite from carbonatite has similar (Sr-87/Sr-86)(i) (0.70727-0.70739) with magmatic apatite. In-situ oxygen isotopic analyses on zircon yielded delta O-18(VSMOW)(parts per thousand & nbsp;) from 5.9 to 6.7 parts per thousand & nbsp;. Previous studies reveal that coeval, mantle lithosphere-derived rocks in the region have more enriched Sr (Sr-87/(86)Sri greater than 0.709) and Nd [epsilon(Nd)(t) - 12] isotopes than the Weishan complex; whereas the asthenosphere-derived rocks in the region are characterized by depleted Sr-Nd isotopes (Sr-87/Sr-86(i) < 0.706; epsilon(Nd)(t) greater than 0) and low delta(18)O(VSMOW & nbsp;)values (mostly < 5.4 parts per thousand. It is well known that Northern China experienced destruction in the Early Mesozoic, which was accompanied with asthenosphere upwelling along trans-lithosphere faults. Considering that the Weishan complex locates adjacent to the trans-lithosphere Tanlu fault, generation of the complex may be related to asthenosphere-lithosphere interaction. Notably, the Weishan complex differs from coeval REE-barren carbonatites in that its source involved asthenosphere-derived components; hence, involvement of asthenosphere-derived components may be important for the formation of such a REE-rich complex. In general, this study highlights the importance of lithosphere-asthenosphere interaction in supplying necessary heat and materials for the generation of the Weishan complex. |
WOS关键词 | CARBONATITE COMPLEX ; SHANDONG PROVINCE ; CONTINENTAL-CRUST ; SILICATE ROCKS ; MANTLE SOURCES ; PACIFIC PLATE ; EVOLUTION ; BENEATH ; PB ; CRATON |
资助项目 | National Natural Science Foundation of China[42072092] ; National Natural Science Foundation of China[41930430] |
WOS研究方向 | Geology |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000789629500001 |
资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; 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/132A11/105160] |
专题 | 地质与地球物理研究所_中国科学院矿产资源研究重点实验室 |
通讯作者 | Li, Xiaochun |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Mineral Resources, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geochem, State Key Lab Ore Deposit Geochem, Guiyang 550081, Peoples R China 4.Explorat Inst Geol & Mineral Resources V, Tai An 271000, Shandong, Peoples R China 5.China Univ Geosci, Sch Earth Resources, Wuhan 430074, Peoples R China |
推荐引用方式 GB/T 7714 |
Zeng, Xi,Li, Xiaochun,Fan, Hongrui,et al. Generation of REE-rich syenite-(carbonatite) complex through lithosphere-asthenosphere interaction: An in-situ Sr-Nd-O isotopic study of the Mesozoic Weishan pluton, Northern China [J]. JOURNAL OF ASIAN EARTH SCIENCES,2022,230:14. |
APA |
Zeng, Xi.,Li, Xiaochun.,Fan, Hongrui.,Lan, Tingguang.,Lan, Jun.,...&Zhao, Xinfu.(2022). Generation of REE-rich syenite-(carbonatite) complex through lithosphere-asthenosphere interaction: An in-situ Sr-Nd-O isotopic study of the Mesozoic Weishan pluton, Northern China .JOURNAL OF ASIAN EARTH SCIENCES,230,14. |
MLA |
Zeng, Xi,et al." Generation of REE-rich syenite-(carbonatite) complex through lithosphere-asthenosphere interaction: An in-situ Sr-Nd-O isotopic study of the Mesozoic Weishan pluton, Northern China ".JOURNAL OF ASIAN EARTH SCIENCES 230(2022):14. |
入库方式: OAI收割
来源:地质与地球物理研究所
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