A thinned lithosphere beneath coastal area of southeastern China as evidenced by seismic receiver functions

doi:10.1007/s11430-014-4863-y

	A thinned lithosphere beneath coastal area of southeastern China as evidenced by seismic receiver functions
	Ye Zhuo 1; Li QiuSheng 1; Gao Rui 1; Zhang HongShuang 1; He RiZheng 1; Wang HaiYan 1; Li WenHui 1
刊名	SCIENCE CHINA-EARTH SCIENCES
	2014
卷号	57 期号:11 页码:2835-2844
关键词	SE China lithospheric thinning LAB Moho receiver functions Min River fault
ISSN号	1674-7313
DOI	10.1007/s11430-014-4863-y
英文摘要	During Mesozoic to Cenozoic time, the large-scale tectono-magmatism had strongly modified the lithosphere beneath the southeastern continent of China, leaving the present-day lithosphere as a new one evolving from the ancient lithosphere that was largely removed and replaced. But this model proposed from geochemical and petrological research is urgently in need of support from seismic observational evidence. In this paper, based on the dataset recorded by the dense stations of two NE oriented broadband seismic profiles deployed in the coastal area of southeastern China (SE China), both P-wave (P-RF) and S-wave (S-RF) receiver functions were isolated. We identified Pls phase converted from the Lithosphere-Asthenosphere Boundary (LAB) in P-RFs of individual stations. Migrated Pls phase indicated a depth of 60-70 km for LAB. Inversions/ comparisons of P-RF (Pls phase) and S-RF (Slp phase) waveforms together with Ps and Sp imaging for the crust and upper mantle structure further confirmed this result. P-RF and S-RF migrated images exhibit that a flat LAB is positioned at the depth of 60-70 km spreading along the profile, whereas a distinct structural change of lithospheric base appears at the Min River estuary. Both Ps and PpPs migrated images of P-RFs present an abrupt Moho drop across the Min River fault from south to north, which is consistent with previous result obtained from deep seismic sounding. By taking into consideration other geological and geophysical features such as locally high anomalies of crustal Poisson's ratios and heat flow at the Min River estuary, we infer that the Min River fault penetrates down to the Moho and may, furthermore, interfere in the deeper lithospheric structure.
学科主题	固体地球物理学
WOS关键词	UPPER-MANTLE STRUCTURE ; SAN-ANDREAS FAULT ; CRUSTAL STRUCTURE ; CONVERTED WAVES ; FUZHOU BASIN ; SOUTH CHINA ; EVOLUTION ; MARGIN ; CRATON ; SUBDUCTION
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000344784400025
内容类型	期刊论文
源URL	[http://119.78.100.197/handle/2HKVOGP0/40555]
专题	中国地质科学院地质研究所
作者单位	1.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China 2.Minist Land & Resources, Key Lab Earthprobe & Geodynam, Beijing 100037, Peoples R China
推荐引用方式 GB/T 7714	Ye Zhuo,Li QiuSheng,Gao Rui,et al. A thinned lithosphere beneath coastal area of southeastern China as evidenced by seismic receiver functions[J]. SCIENCE CHINA-EARTH SCIENCES,2014,57(11):2835-2844.
APA	Ye Zhuo.,Li QiuSheng.,Gao Rui.,Zhang HongShuang.,He RiZheng.,...&Li WenHui.(2014).A thinned lithosphere beneath coastal area of southeastern China as evidenced by seismic receiver functions.SCIENCE CHINA-EARTH SCIENCES,57(11),2835-2844.
MLA	Ye Zhuo,et al."A thinned lithosphere beneath coastal area of southeastern China as evidenced by seismic receiver functions".SCIENCE CHINA-EARTH SCIENCES 57.11(2014):2835-2844.