Arc signatures in abyssal peridotites and its implications

doi:10.1016/j.dsr.2023.104027

	Arc signatures in abyssal peridotites and its implications
	Wang, Jixin 1,2; Shang, Xiuqi 1,2,3; Ma, Qiang4 ; Chen, Chen1,2 ; Liu, Yang 4; Li, Congyin 1,2
	2023-07-01
发表期刊	DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
ISSN	0967-0637
卷号	197 页码:9
通讯作者	Li, Congyin(licongying@qdio.ac.cn)
摘要	Investigating mass exchanges between the subduction zones and mid-ocean ridges provides essential clues to understanding recycling process and mantle convection in the Earth's mantle. In this study, we found evidence of recycled subduction signals in the abyssal peridotites from mid-ocean ridges through their extremely low bulk (Dy/Yb)N and bulk Al2O3, which could not be explained by normal decompression melting at mid-ocean ridges, but required a hydrous melting history. We show here that abyssal peridotites from the fast-spreading Pacific Oceanic Ridges (East-Pacific Rise and Pacific-Antarctic Ridge), to the ultraslow-spreading Southwest Indian Ridge and to the slow-spreading Mid-Atlantic Ridge, require increasing amount of slab-derived fluid in their mantle sources. Therefore, the subduction influence on abyssal peridotites is independent of the spreading rates of the overlying ridges. Locations, such as the Fifteen-Twenty Fracture Zone, the Rainbow Massif from the MAR and the Hess Deep from EPR, have abyssal peridotites overlap well with forearc peridotites, suggesting that the prominent characteristics of arc mantle wedge could be preserved in abyssal peridotites when the traveling distance or time is short for the recycled arc mantle migrating in the mantle convection flow. The well-preserved subduction-related signature in ridge areas that are relatively proximal to modern subduction zones imply that mass exchanges between the subduction zones and mid-ocean ridges may be more efficient than previously thought.
关键词	Mid-ocean ridges Abyssal peridotites Subduction signature Ridge spreading rates
DOI	10.1016/j.dsr.2023.104027
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China (NSFC) ; Shandong Provincial Natural Science Foundation[XDA22050103] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[42006051] ; Chinese Academy of Sciences[41627803] ; [ZR2020QD075] ; [2020212] ; [XDB42020303]
WOS研究方向	Oceanography
WOS类目	Oceanography
WOS记录号	WOS:001055249400001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS关键词	MID-ATLANTIC RIDGE ; TRACE-ELEMENT FRACTIONATION ; BONE AMAGMATIC SEGMENT ; MELT EXTRACTION ; SERPENTINITES CONSTRAINTS ; MANTLE LITHOSPHERE ; RAINBOW MASSIF ; BENEATH ; CRUST ; GEOCHEMISTRY
引用统计
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/182847
专题	深海极端环境与生命过程研究中心
通讯作者	Li, Congyin
作者单位	1.Chinese Acad Sci, Inst Oceanol, Ctr Deep Sea Res, Qingdao 266071, Peoples R China 2.Laoshan Lab, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Tongji Univ, State Key Lab Marine Geol, Shanghai 200092, Peoples R China
第一作者单位	深海极端环境与生命过程研究中心
通讯作者单位	深海极端环境与生命过程研究中心
推荐引用方式 GB/T 7714	Wang, Jixin,Shang, Xiuqi,Ma, Qiang,et al. Arc signatures in abyssal peridotites and its implications[J]. DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,2023,197:9.
APA	Wang, Jixin,Shang, Xiuqi,Ma, Qiang,Chen, Chen,Liu, Yang,&Li, Congyin.(2023).Arc signatures in abyssal peridotites and its implications.DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS,197,9.
MLA	Wang, Jixin,et al."Arc signatures in abyssal peridotites and its implications".DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS 197(2023):9.