Multiplicity of the 660-km discontinuity beneath the Izu-Bonin area

doi:10.1016/j.pepi.2012.03.003

CORC > 北京大学 > 地球与空间科学学院

	Multiplicity of the 660-km discontinuity beneath the Izu-Bonin area
	Zhou, Yuan-Ze ; Yu, Xiang-Wei ; Yang, Hui ; Zang, Shao-Xian
刊名	physics of the earth and planetary interiors
	2012
关键词	660-km Discontinuity Multiplicity Izu-Bonin area N-th root slant stack TONGA SUBDUCTION ZONE SEISMIC DISCONTINUITIES 660-KILOMETER DISCONTINUITY MANTLE DISCONTINUITIES NORTHEAST CHINA STAGNANT SLABS WAVE-FORMS TOPOGRAPHY COMPUTATION SCATTERERS
DOI	10.1016/j.pepi.2012.03.003
英文摘要	The relatively simple subducting slab geometry in the Izu-Bonin region provides a valuable opportunity to study the multiplicity of the 660-km discontinuity and the related response of the subducting slab on the discontinuity. Vertical short-period recordings of deep events with simple direct P phases beneath the Izu-Bonin region were retrieved from two seismic networks in the western USA and were used to study the structure of the 660-km discontinuity. After careful selection and pre-processing, 23 events from the networks, forming 32 pairs of event-network records, were processed. Related vespagrams were produced using the N-th root slant stack method for detecting weak down-going SdP phases that were inverted to the related conversion points. From depth histograms and the spatial distribution of the conversion points, there were three clear interfaces at depths of 670, 710 and 730 km. These interfaces were depressed approximately 20-30 km in the northern region. In the southern region, only two layers were identified in the depth histograms, and no obvious layered structure could be observed from the distribution of the conversion points. (C) 2012 Elsevier B.V. All rights reserved.; Geochemistry & Geophysics; SCI(E); EI; 0; ARTICLE; 51-60; 198
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/233592]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Zhou, Yuan-Ze,Yu, Xiang-Wei,Yang, Hui,et al. Multiplicity of the 660-km discontinuity beneath the Izu-Bonin area[J]. physics of the earth and planetary interiors,2012.
APA	Zhou, Yuan-Ze,Yu, Xiang-Wei,Yang, Hui,&Zang, Shao-Xian.(2012).Multiplicity of the 660-km discontinuity beneath the Izu-Bonin area.physics of the earth and planetary interiors.
MLA	Zhou, Yuan-Ze,et al."Multiplicity of the 660-km discontinuity beneath the Izu-Bonin area".physics of the earth and planetary interiors (2012).