Crustal structure of different tectonic units in southeastern part of Northeast China using receiver functions

doi:10.6038/cjg2019M0379

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院地球与行星物理重点实验室

	Crustal structure of different tectonic units in southeastern part of Northeast China using receiver functions
	Li TianJue 1,2,3; Chen QiFu 1,2,3
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2019-08-01
卷号	62 期号:8 页码:2899-2917
关键词	NE China Receiver function Moho discontinuity V-p/V-s ratio Tanlu Fault Zone Changbaishan Tianchi volcano
ISSN号	0001-5733
DOI	10.6038/cjg2019M0379
英文摘要	Based on our broadband seismological records named NECsaids (NorthEast China Seismic Array to Investigate Deep Subduction) that deployed in NE China from July 2010 to May 2017, as well as the permanent seismological records operated by China Earthquake Administration (CEA) from August 2007 to May 2017 and seismological records from the international collaborative project named NECESSArray (NorthEast China Extended Seismic Array) from September 2009 to August 2011, we acquired 33752 P-wave receiver functions (RFs) in total with high quality. And then using H-kappa stacking technique and common converted points (CCP) stacking technique, we obtained the highest-resolution crustal structure in southeastern part of NE China so far as we know, which consists of 231 measurements of crustal thickness and V-p/V-s ratio (including 89 measurements from former studies) and 3 CCP stacking profiles. The main results in this study are summarized as follow: The five micro-continental blocks in our study region show different crustal structure distinctly. The south-central part of the Zhangguangcai Ranges owns the similar crustal thickness and V-p/V-s ratio as the northeastern part of the North China Craton. The southeastern part of the Songliao Block has the thinnest crust and highest crustal V-p/V-s ratio. As for the western Khanka Block, it keeps a slightly thicker crustal thickness while with the lowest crustal V-p/V(s )ratio. The southwestern part of the Jiamusi Massif owns an ordinary crustal V-p/V-s ratio but its crust is the thickest. The important tectonic line like the Tanlu Fault Zone which in depth cut through the Moho discontinuity, its northern segment appears to have different crustal structure in its northern and southern parts. For its northern part (44. 4 degrees N-47 degrees N), the Moho discontinuity between the two main branches appears to drop down. While for the southern part (41. 5 degrees N-43. 3 degrees N) , the Moho discontinuity changes into being uplifted under the fault zone. Around the Changbaishan Tianchi volcano, the Moho discontinuity under the caldera subsides and the measurements at 3 stations (2 measurements cited from former study) with high V-p/V-s ratio located at the north and east of the caldera within 10 km may indicate the present crustal magma.
WOS关键词	SEISMIC EVIDENCE ; SOUTHERN CALIFORNIA ; SONGLIAO BASIN ; VOLCANIC AREA ; MOHO DEPTH ; NE CHINA ; BENEATH ; THICKNESS ; EASTERN ; RATIO
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000480300600010
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/93358]
专题	地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者	Li TianJue
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li TianJue,Chen QiFu. Crustal structure of different tectonic units in southeastern part of Northeast China using receiver functions[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2019,62(8):2899-2917.
APA	Li TianJue,&Chen QiFu.(2019).Crustal structure of different tectonic units in southeastern part of Northeast China using receiver functions.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,62(8),2899-2917.
MLA	Li TianJue,et al."Crustal structure of different tectonic units in southeastern part of Northeast China using receiver functions".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 62.8(2019):2899-2917.