Mineralogical and Geochemical Constraints on the Mantle Source Characteristics of Basaltic Lavas from the Central Mariana Trough

doi:10.1007/s11802-023-5449-0

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋地质与环境重点实验室

	Mineralogical and Geochemical Constraints on the Mantle Source Characteristics of Basaltic Lavas from the Central Mariana Trough
	Lai, Zhiqing 3,4,5; Gao, Wei 2; Han, Zongzhu 4,5; Guo, Kun 1; Zhong, Shihua 4,5; Zhao, Guangtao 4,5
刊名	JOURNAL OF OCEAN UNIVERSITY OF CHINA
	2022-08-22
页码	13
关键词	backarc basin basalt subduction component mantle lithology magma generation
ISSN号	1672-5182
DOI	10.1007/s11802-023-5449-0
通讯作者	Gao, Wei(gaowei@ndsc.org.cn) ; Zhao, Guangtao(gtzhao@ouc.edu.cn)
英文摘要	The composition of mantle-derived basalts reflects the nature of their mantle source regions, which constrain magma generation and composition. Here we present a new whole rock major and trace elements and phenocryst composition of the basaltic lava in the central Mariana Trough. These data provide insights into the mantle source characteristics affected by subduction components. The rocks range from basalts to basaltic andesites, which have high subduction-mobile element contents (e.g., K, U, Th, LREE) related to N-MORB. The calculated temperature and depth of magma generation are about 1300 degrees C and 30 km, respectively. Although the results above suggest that the addition of hydrous fluid and/or a melt derived from a slab decreases the temperature of mantle partial melting and mildly modifies the composition of a mantle source, the mantle source lithology from which primary magma is generated remains to be peridotite.
资助项目	Shandong Provincial Natural Science Foundation, China[ZR2 017PD002] ; Shandong Provincial Natural Science Foundation, China[ZR2019BD010] ; Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2019KG05] ; Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MG E2021KG01] ; Fundamental Research Funds for the Central Universities[202051009]
WOS研究方向	Oceanography
语种	英语
出版者	OCEAN UNIV CHINA
WOS记录号	WOS:000842861400004
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/179943]
专题	海洋研究所_海洋地质与环境重点实验室
通讯作者	Gao, Wei; Zhao, Guangtao
作者单位	1.Pilot Natl Lab Marine Sci & Technol Qingdao, Ctr Isotope Geochem & Geochronol, Qingdao 266237, Peoples R China 2.Natl Deep Sea Ctr, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 4.Ocean Univ China, Coll Marine Geosci, Qingdao 266100, Peoples R China 5.Ocean Univ China, MOE, Key Lab Submarine Geosci & Prospecting Tech, Qingdao 266100, Peoples R China
推荐引用方式 GB/T 7714	Lai, Zhiqing,Gao, Wei,Han, Zongzhu,et al. Mineralogical and Geochemical Constraints on the Mantle Source Characteristics of Basaltic Lavas from the Central Mariana Trough[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2022:13.
APA	Lai, Zhiqing,Gao, Wei,Han, Zongzhu,Guo, Kun,Zhong, Shihua,&Zhao, Guangtao.(2022).Mineralogical and Geochemical Constraints on the Mantle Source Characteristics of Basaltic Lavas from the Central Mariana Trough.JOURNAL OF OCEAN UNIVERSITY OF CHINA,13.
MLA	Lai, Zhiqing,et al."Mineralogical and Geochemical Constraints on the Mantle Source Characteristics of Basaltic Lavas from the Central Mariana Trough".JOURNAL OF OCEAN UNIVERSITY OF CHINA (2022):13.