Progress of the researches on Kamchatka Arc magmatism

doi:10.18654/1000-0569/2020.02.14

CORC > 海洋研究所 > 中国科学院海洋研究所 > 深海极端环境与生命过程研究中心

	Progress of the researches on Kamchatka Arc magmatism
	Liu HaiYang 1,2,4; Xue YingYu 1,2,4; Sun WeiDong 1,2,3,4
刊名	ACTA PETROLOGICA SINICA
	2020
卷号	36 期号:2 页码:560-574
关键词	Subduction zone Mantle melting Melt/fluid metasomatism Geochemistry Kamchatka Arc West Pacific
ISSN号	1000-0569
DOI	10.18654/1000-0569/2020.02.14
通讯作者	Sun WeiDong(weidongsun@qdio.ac.cn)
英文摘要	The West Pacific contains most of the intraoceanic subduction zones, and is also the most abundant area of the trench- arc-basin system in the world. The Kamchatka Peninsula ( 51 degrees similar to 60 degrees N, 155 degrees similar to 164 degrees E) in Far East, Russia, located in the northwestern Pacific, and is the crucial portion of the Pacific Ring of fire. In order to elucidate the origin of the Kamchatka Arc magmatism, large amounts of researches have been carried out on the characteristics of mantle sources, melting process, magma fractionation and melt/fluid metasomatism of the mantle wedge. The latest researches demonstrated that : (1) variably depleted mantle sources exist below the Eastern Volcanic Front (EVF) and Central Kamchatka Depression (CKD) area of the Kamchatka Arc, while the mantle source below Sredinny Ridge (SR) region is significantly enriched compared to an Normal-Middle Ocean Ridge Basalt (N-MORB) source; (2) the degree of melting changes from 20% for EVF to 9% similar to 12% for CKD and SR, which may result from the fluid properties in the different regions; (3) polygenetic volcanoes (e. g. , Klyuchevskoy) show significant variations in geochemical compositions, which may reflect the difference of melting conditions and the process of magma fractionation; ( 4 ) major and trace elements as well as isotopes (e. g. , delta B-11) of arc lavas show systematic variations from the volcanic arc front to back-arc, which may result from the difference in flux and properties of slab-derived fluids; (5) the Northern Central Kamchatka Depression (NCKD) arc magmatism displays signatures of slab-derived melts, which is caused by superimposing hot mantle wedge and special plate configuration. This paper reviews the progress about the research on Kamchatka Arc magmatism, hoping to promote the understanding of the genesis of island arc magma.
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000533618000014
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/167469]
专题	海洋研究所_深海极端环境与生命过程研究中心
通讯作者	Sun WeiDong
作者单位	1.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Mineral Resources, Qingdao 266237, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Deep Sea Res, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Liu HaiYang,Xue YingYu,Sun WeiDong. Progress of the researches on Kamchatka Arc magmatism[J]. ACTA PETROLOGICA SINICA,2020,36(2):560-574.
APA	Liu HaiYang,Xue YingYu,&Sun WeiDong.(2020).Progress of the researches on Kamchatka Arc magmatism.ACTA PETROLOGICA SINICA,36(2),560-574.
MLA	Liu HaiYang,et al."Progress of the researches on Kamchatka Arc magmatism".ACTA PETROLOGICA SINICA 36.2(2020):560-574.