Variations in crustal magma volume flux along the Hawaii-Emperor seamount chain and their implications for plume-lithosphere interactions | |
Bai, Yongliang2; Zhu, Haoran2; Li, Sanzhong1,3,6; Dong, Dongdong5; Wu, Shiguo4 | |
刊名 | TECTONOPHYSICS |
2023-02-05 | |
卷号 | 848 |
关键词 | Hawaii -Emperor seamount chain Crustal magma volume flux Mantle plume -lithosphere interaction Plate motion rate Fracture zones |
ISSN号 | 1879-3266 |
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 |
内容类型 | 期刊论文 |
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.Ocean Univ China, Coll Marine Geosci, Qingdao 266100, Peoples R China; 2.China Univ Petr, Coll Oceanog & Space Informat, Qingdao 266580, Peoples R China; 3.Ocean Univ China, Key Lab Submarine Geosci & Prospecting Tech, Minist Educ, Qingdao 266100, Peoples R China; 4.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China 5.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China; 6.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266237, 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). |
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