Variations in crustal magma volume flux along the Hawaii-Emperor seamount chain and their implications for plume-lithosphere interactions

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 深海科学研究部 > 深海地球物理与资源研究室

	Variations in crustal magma volume flux along the Hawaii-Emperor seamount chain and their implications for plume-lithosphere interactions
	Bai, Yongliang 2; Zhu, Haoran 2; Li, Sanzhong 1,3,6; Dong, Dongdong 5; Wu, Shiguo 4
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).