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  2. 地质与地球物理研究所
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  4. 岩石圈演化国家重点实验室
Magma system and equilibrium depth of the Cenozoic basalts in the central North China craton

文献类型：期刊论文

作者Su, Xiangdong3; Ping, Jianhua3; Leng, Wei3; Zhao, Jichang1; Tang, Yanjie2; Liu, Jiaqi2,3
刊名LITHOS
出版日期2023-06-01
卷号446页码:12
ISSN号0024-4937
关键词Continental lithosphere Lithospheric thickness Destruction and regrowth Alkaline basalt Magma equilibrium depth
DOI10.1016/j.lithos.2023.107142
英文摘要Variations of continental lithosphere thickness through time is crucial for understanding destruction and regrowth processes in the cratonic region. The North China craton (NCC) is well-known for its various degrees of destruction since similar to 200 Ma: the eastern portion was significantly thinned to 60-80 km, while the western part remained thick (>160 km). Nevertheless, the variation of lithospheric thickness in the central NCC remains elusive. Here we use thermobarometers of both liquids and minerals (olivine and clinopyroxene) to estimate the equilibrium depths of Hebi alkaline basalts (6.4 Ma) and evaluate the thickness of lithosphere beneath the volcanic fields (with eruption ages of 30-0.1 Ma) of the central NCC. Results show that the lithospheric thickness is similar to 90-100 km, thinner than the current estimated by seismic observations (90-130 km). This variation indicates that the central NCC's lithosphere underwent Mesozoic thinning and Cenozoic accretion. Olivine-dominated cumulates in melt pooling close beneath the lithosphere-asthenosphere boundary and the buoyant mantle residues might be key components that have contributed to the re-healing of the thinned lithosphere.
WOS关键词SINO-KOREAN CRATON ; EASTERN CHINA ; MANTLE XENOLITHS ; LITHOSPHERIC THICKNESS ; HANNUOBA BASALTS ; VOLCANIC-ROCKS ; CONSTRAINTS ; GEOCHEMISTRY ; BENEATH ; EVOLUTION
资助项目High-level Talents Funds[32340122] ; High-level Talents Funds[32212437] ; [32340364]
WOS研究方向Geochemistry & Geophysics ; Mineralogy
语种英语
出版者ELSEVIER
WOS记录号WOS:001056038900001
资助机构High-level Talents Funds ; High-level Talents Funds ; High-level Talents Funds ; High-level Talents Funds ; High-level Talents Funds ; High-level Talents Funds ; High-level Talents Funds ; High-level Talents Funds
源URL[http://ir.iggcas.ac.cn/handle/132A11/111436]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
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Su, Xiangdong
作者单位1.China Inst Geoenvironm Monitoring, Beijing 100035, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
3.Zhengzhou Univ, Sch Ecol & Environm, Geothermal & Ecol Geol Res Ctr, Zhengzhou 450001, Peoples R China
推荐引用方式
GB/T 7714		 Su, Xiangdong,Ping, Jianhua,Leng, Wei,et al. Magma system and equilibrium depth of the Cenozoic basalts in the central North China craton[J]. LITHOS,2023,446:12.
APA Su, Xiangdong,Ping, Jianhua,Leng, Wei,Zhao, Jichang,Tang, Yanjie,&Liu, Jiaqi.(2023).Magma system and equilibrium depth of the Cenozoic basalts in the central North China craton.LITHOS,446,12.
MLA Su, Xiangdong,et al."Magma system and equilibrium depth of the Cenozoic basalts in the central North China craton".LITHOS 446(2023):12.

入库方式： OAI收割

来源：地质与地球物理研究所

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