气候变化领域集成服务门户(CCPortal): The melt content of the low velocity layer in the eastern South China: Implications for the subduction process of the Western Pacific plate

CCPortal

DOI	10.1016/j.pepi.2019.106321
	The melt content of the low velocity layer in the eastern South China: Implications for the subduction process of the Western Pacific plate
	Ma, Maining; Zhou, Xiaoya; Xu, Zhishuang; Li, Guohui; Li, Yongbing; Zhou, Yuanze
通讯作者	Ma, MN (通讯作者)
发表日期	2020
ISSN	0031-9201
EISSN	1872-7395
卷号	298
英文摘要	The low-velocity layer (LVL) atop the mantle transition zone involves diapiric segregating, melt upwelling, mantle mixing, magmatic eruption and the remnants. The lateral variations of the LVL could record the process of the subducting plates. The LVL beneath the eastern South China intensively affected by the subduction of Western Pacific plate since Mesozoic is imaged with observed P-wave triplication recorded by the dense Chinese Digital Seismic Network. The thicknesses of the LVL are 57 km for sub-region A, 40 km for sub-region B, and 20 km for sub-region C. The melt fractions related to the different velocity structures of the LVL beneath three north-to-south adjacent sub-regions A, B and C of the eastern South China are estimated with the bulk solid compositions, reference potential temperatures, compositions and dihedral angles. The spatial characteristics of the melt fractions and the LVL thicknesses are in accord with the recession directions of the subduction fronts of the Western Pacific plate. This consistency provides a powerful information for understanding the plate subduction process.
关键词	MANTLE TRANSITION ZONE PARTIALLY MOLTEN ROCKS HYDROUS SILICATE MELT 410 KM DISCONTINUITY SEISMIC EVIDENCE STAGNANT SLAB SOUTHEASTERN CHINA BULK COMPOSITION BENEATH ATOP
英文关键词	The low-velocity layer; The mantle transition zone; The melt fractions; Western Pacific plate subduction
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000510971400002
来源期刊	PHYSICS OF THE EARTH AND PLANETARY INTERIORS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259770
推荐引用方式 GB/T 7714	Ma, Maining,Zhou, Xiaoya,Xu, Zhishuang,et al. The melt content of the low velocity layer in the eastern South China: Implications for the subduction process of the Western Pacific plate[J]. 中国科学院青藏高原研究所,2020,298.
APA	Ma, Maining,Zhou, Xiaoya,Xu, Zhishuang,Li, Guohui,Li, Yongbing,&Zhou, Yuanze.(2020).The melt content of the low velocity layer in the eastern South China: Implications for the subduction process of the Western Pacific plate.PHYSICS OF THE EARTH AND PLANETARY INTERIORS,298.
MLA	Ma, Maining,et al."The melt content of the low velocity layer in the eastern South China: Implications for the subduction process of the Western Pacific plate".PHYSICS OF THE EARTH AND PLANETARY INTERIORS 298(2020).