中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Variations in crustal magma volume flux along the Hawaii-Emperor seamount chain and their implications for plume-lithosphere interactions

文献类型:期刊论文

作者Bai, Yongliang4; Zhu, Haoran4; Li, Sanzhong1,5,6; Dong, Dongdong2; Wu, Shiguo3
刊名TECTONOPHYSICS
出版日期2023-02-05
卷号848
ISSN号1879-3266
关键词Hawaii -Emperor seamount chain Crustal magma volume flux Mantle plume -lithosphere interaction Plate motion rate Fracture zones
文献子类期刊论文
英文摘要The magma volume flux is reduced by a fracture zone (FZ) crossing the Laccadives-Maldives-Chagos BankMascarene Plateau chain in the Indian Ocean and is negatively correlated with the plate motion rate along the Ninetyeast Ridge (NER). Whether the FZs in the Pacific decrease the crustal magma volume flux and whether the flux along the Hawaii-Emperor seamount chain (HESC) is also negatively correlated with the plate motion rate are both unclear. Focusing on these two issues, we estimate the variations in crustal magma volume flux along the HESC and discussed plume-lithosphere interactions. The present-day crustal thickness is mapped via gravity inversion based on Earth interior density modeling. The accretionary thickness is isolated by filtering the presentday crustal thickness. Then, according to the seamount age variation trend inferred from ages by rock dating, the crustal magma volume flux along the whole HESC is derived. All the FZs correspond well to flux peaks because these weak lithospheric zones provided potential conduits for magma upwelling and promoted magma accretion. However, for the Indian Ocean case, the Reunion plume was captured by the mid-ocean ridge before and after reaching the low-flux transform fault, so the transform fault represented a relatively stronger lithosphere than the nearby mid-ocean ridge. The crustal magma volume flux along the HESC does not correlate with the motion rate of the Pacific Plate because the lithosphere was old during seamount loading, which contrasts with the inverse correlation between these two parameters along the NER, which had a young lithosphere during seamount loading.
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000926822800001
版本出版稿
源URL[http://ir.idsse.ac.cn/handle/183446/10180]  
专题深海科学研究部_深海地球物理与资源研究室
作者单位1.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266237, Peoples R China;
2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China;
3.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
4.China Univ Petr, Coll Oceanog & Space Informat, Qingdao 266580, Peoples R China;
5.Ocean Univ China, Key Lab Submarine Geosci & Prospecting Tech, Minist Educ, Qingdao 266100, Peoples R China;
6.Ocean Univ China, Coll Marine Geosci, Qingdao 266100, Peoples R China;
推荐引用方式
GB/T 7714
Bai, Yongliang,Zhu, Haoran,Li, Sanzhong,et al. Variations in crustal magma volume flux along the Hawaii-Emperor seamount chain and their implications for plume-lithosphere interactions[J]. TECTONOPHYSICS,2023,848.
APA Bai, Yongliang,Zhu, Haoran,Li, Sanzhong,Dong, Dongdong,&Wu, Shiguo.(2023).Variations in crustal magma volume flux along the Hawaii-Emperor seamount chain and their implications for plume-lithosphere interactions.TECTONOPHYSICS,848.
MLA Bai, Yongliang,et al."Variations in crustal magma volume flux along the Hawaii-Emperor seamount chain and their implications for plume-lithosphere interactions".TECTONOPHYSICS 848(2023).

入库方式: OAI收割

来源:深海科学与工程研究所

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