A seismic reference model for the crust and uppermost mantle beneath   China from surface wave dispersion

doi:10.1093/gji/ggw175

CORC > 北京大学 > 地球与空间科学学院

	A seismic reference model for the crust and uppermost mantle beneath China from surface wave dispersion
	Shen, Weisen ; Ritzwoller, Michael H. ; Kang, Dou ; Kim, YoungHee ; Lin, Fan-Chi ; Ning, Jieyuan ; Wang, Weitao ; Zheng, Yong ; Zhou, Longquan
刊名	GEOPHYSICAL JOURNAL INTERNATIONAL
	2016
关键词	Surface waves and free oscillations Seismic tomography Crustal structure Asia AMBIENT-NOISE TOMOGRAPHY PHASE-VELOCITY MAPS WESTERN UNITED-STATES RECEIVER FUNCTIONS JOINT INVERSION SOUTHERN TIBET SE TIBET 2-STATION ANALYSIS RADIAL ANISOTROPY ARRAY TOMOGRAPHY
DOI	10.1093/gji/ggw175
英文摘要	Using data from more than 2000 seismic stations from multiple networks arrayed throughout China (CEArray, China Array, NECESS, PASSCAL, GSN) and surrounding regions (Korean Seismic Network, F-Net, KNET), we perform ambient noise Rayleigh wave tomography across the entire region and earthquake tomography across parts of South China and Northeast China. We produce isotropic Rayleigh wave group and phase speed maps with uncertainty estimates from 8 to 50 s period across the entire region of study, and extend them to 70 s period where earthquake tomography is performed. Maps of azimuthal anisotropy are estimated simultaneously to minimize anisotropic bias in the isotropic maps, but are not discussed here. The 3D model is produced using a Bayesian Monte Carlo formalism covering all of China, extending eastwards through the Korean Peninsula, into the marginal seas, to Japan. We define the final model as the mean and standard deviation of the posterior distribution at each location on a 0.5A degrees x 0.5A degrees grid from the surface to 150 km depth. Surface wave dispersion data do not strongly constrain internal interfaces, but shear wave speeds between the discontinuities in the crystalline crust and uppermost mantle are well determined. We design the resulting model as a reference model, which is intended to be useful to other researchers as a starting model, to predict seismic wave fields and observables and to predict other types of data (e.g. topography, gravity). The model and the data on which it is based are available for download. In addition, the model displays a great variety and considerable richness of geological and tectonic features in the crust and in the uppermost mantle deserving of further focus and continued interpretation.; NSF [EAR-1246925]; National Science Foundation [EAR-1261681, CNS-0821794]; China National Special Fund for Earthquake Scientific Research in Public Interest [201008011]; NSFC [41374070, 41422401, 41174086]; Korean Government [NRF-2014S1A2A2027609]; University of Colorado at Boulder; University of Colorado Denver; National Center for Atmospheric Research; SCI(E); EI; ARTICLE; weisen.shen@levee.wustl.edu; 2; 954-979; 206
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/491805]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Shen, Weisen,Ritzwoller, Michael H.,Kang, Dou,et al. A seismic reference model for the crust and uppermost mantle beneath China from surface wave dispersion[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2016.
APA	Shen, Weisen.,Ritzwoller, Michael H..,Kang, Dou.,Kim, YoungHee.,Lin, Fan-Chi.,...&Zhou, Longquan.(2016).A seismic reference model for the crust and uppermost mantle beneath China from surface wave dispersion.GEOPHYSICAL JOURNAL INTERNATIONAL.
MLA	Shen, Weisen,et al."A seismic reference model for the crust and uppermost mantle beneath China from surface wave dispersion".GEOPHYSICAL JOURNAL INTERNATIONAL (2016).