Distinct Lithospheric Structures of the Ordos Block and Its Margins From P and S Receiver Functions and Its Implications for the Cenozoic Lithospheric Reworking

Zhang，Chen1,2; Guo，Zhen1,2,3; Yu，Yong1,2; Yang，Ting1,2,3; Chen，Yongshun John1,2,3

2022-03-28

10.1029/2021GL097680

GEOPHYSICAL RESEARCH LETTERS   影响因子和分区

0094-8276

1944-8007

We obtained the crustal and lithospheric structures across the Ordos block in the western North China Craton, using P and S receiver functions (RFs) based on teleseismic data of a dense N-S seismic array. Migrated images for P and S RFs show distinct lithospheric features of the Ordos block and its margins: a thick, cratonic lithosphere is present beneath the Ordos block, whereas the lithosphere is significantly thin at its surrounding rift systems. More importantly the Ordos lithosphere is severely modified by the mantle upwelling at the northern margin but has little modification by the eastward lateral asthenospheric flow at the southern margin. Finally, the dramatically thin lithosphere observed across the southern margin of the Ordos block supports the existence of a significant pathway for eastward asthenospheric flow from the northeastern Tibetan Plateau beneath the Weihe rift and Qinling orogen.

asthenospheric flow Cenozoic lithospheric reworking lithospheric structure Ordos block P and S receiver functions

SCI ; EI

英语

通讯

National Natural Science Foundation of China[41890814];National Natural Science Foundation of China[41904053];National Natural Science Foundation of China[41974052];National Natural Science Foundation of China[U1901602];

Geology

Geosciences, Multidisciplinary

WOS:000777608200019

AMER GEOPHYSICAL UNION

20221411878786

Earth sciences

Geology and Geophysics:481 ; Geophysics:481.3

GEOSCIENCES

2-s2.0-85127367944

Scopus

1.Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou),Shenzhen,China
2.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,China
3.Shanghai Sheshan National Geophysical Observatory and Research Station,Shanghai,China

Zhang，Chen,Guo，Zhen,Yu，Yong,et al. Distinct Lithospheric Structures of the Ordos Block and Its Margins From P and S Receiver Functions and Its Implications for the Cenozoic Lithospheric Reworking[J]. GEOPHYSICAL RESEARCH LETTERS,2022,49(6).

Zhang，Chen,Guo，Zhen,Yu，Yong,Yang，Ting,&Chen，Yongshun John.(2022).Distinct Lithospheric Structures of the Ordos Block and Its Margins From P and S Receiver Functions and Its Implications for the Cenozoic Lithospheric Reworking.GEOPHYSICAL RESEARCH LETTERS,49(6).

Zhang，Chen,et al."Distinct Lithospheric Structures of the Ordos Block and Its Margins From P and S Receiver Functions and Its Implications for the Cenozoic Lithospheric Reworking".GEOPHYSICAL RESEARCH LETTERS 49.6(2022).