Global Rayleigh wave phase-velocity maps from finite-frequency   tomography

doi:10.1093/gji/ggv555

CORC > 北京大学 > 地球与空间科学学院

	Global Rayleigh wave phase-velocity maps from finite-frequency tomography
	Liu, Kui ; Zhou, Ying
刊名	GEOPHYSICAL JOURNAL INTERNATIONAL
	2016
关键词	Tomography Surface waves and free oscillations Wave scattering and diffraction UPPER-MANTLE STRUCTURE SHEAR-VELOCITY SURFACE-WAVES SENSITIVITY KERNELS CRUSTAL THICKNESS SOUTHERN CALIFORNIA RECEIVER FUNCTIONS SOURCE PARAMETERS TRANSITION ZONE MODEL
DOI	10.1093/gji/ggv555
英文摘要	We report global phase-velocity maps of fundamental-mode Rayleigh waves at periods between 25 and 100 s based on finite-frequency tomography. Rayleigh wave dispersion measurements are made using a multitaper technique for both minor-arc and major-arc wave trains. The global phase-velocity maps confirm many features associated with surface tectonics including the ocean-continent dichotomy and the signature of lithospheric cooling in oceanic plates. In addition, the high-resolution phase-velocity maps reveal a major change in the distribution of small-scale anomalies in the Pacific at different wave periods. We calculate the global average of Rayleigh wave phase velocity in major tectonic regions and show that large discrepancies exist between our model and global crustal and mantle models: (1) In oceanic regions, short-period (
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437944]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Liu, Kui,Zhou, Ying. Global Rayleigh wave phase-velocity maps from finite-frequency tomography[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2016.
APA	Liu, Kui,&Zhou, Ying.(2016).Global Rayleigh wave phase-velocity maps from finite-frequency tomography.GEOPHYSICAL JOURNAL INTERNATIONAL.
MLA	Liu, Kui,et al."Global Rayleigh wave phase-velocity maps from finite-frequency tomography".GEOPHYSICAL JOURNAL INTERNATIONAL (2016).