Quaternary sodic and potassic intraplate volcanism in northeast China controlled by the underlying heterogeneous lithospheric structures

Fan, Xingli1,2; Chen, Qi-Fu1,3; Ai, Yinshuang1,3; Chen, Ling3,4; Jiang, Mingming1,3; Wu, Qingju5; Guo, Zhen2

2021-10-01

10.1130/G48932.1

GEOLOGY   影响因子和分区

0091-7613

1943-2682

The origin and mantle dynamics of the Quaternary intraplate sodic and potassic volcanism in northeast China have long been intensely debated. We present a high-resolution, threedimensional (3-D) crust and upper-mantle S-wave velocity (Vs) model of northeast China by combining ambient noise and earthquake two-plane wave tomography based on unprecedented regional dense seismic arrays. Our seismic images highlight a strong correlation between the basalt geochemistry and upper-mantle seismic velocity structure: Sodic volcanoes are all characterized by prominent low seismic velocities in the uppermost mantle, while potassic volcanoes still possess a normal but thin upper-mantle "lid" depicted by high seismic velocities. Combined with previous petrological and geochemical research findings, we propose that the rarely erupted Quaternary potassic volcanism in northeast China results from the interaction between asthenospheric low-degree melts and the overlying subcontinental lithospheric mantle. In contrast, the more widespread Quaternary sodic volcanism in this region is predominantly sourced from the upwelling asthenosphere without significant overprinting from the subcontinental lithospheric mantle.

SCI ; EI

英语

其他

National Natural Science Foundation of China[91958209,42004033,41474040,41688103,41774058] ; Guangdong Basic and Applied Basic Research Foundation[2019A1515110307]

Geology

Geology

WOS:000705084600021

GEOLOGICAL SOC AMER, INC

20214111012798

Earthquakes ; Geochemistry ; Seismic waves ; Shear waves ; Structural geology ; Velocity ; Volcanoes

Geology:481.1 ; Geochemistry:481.2 ; Seismology:484 ; Mechanics:931.1

GEOSCIENCES

Web of Science

1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
2.Southern Univ Sci & Technol, Dept Ocean Sci & Engn, Shenzhen 518055, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
5.China Earthquake Adm, Inst Geophys, Beijing 100081, Peoples R China

Fan, Xingli,Chen, Qi-Fu,Ai, Yinshuang,et al. Quaternary sodic and potassic intraplate volcanism in northeast China controlled by the underlying heterogeneous lithospheric structures[J]. GEOLOGY,2021,49(10):1260-1264.

Fan, Xingli.,Chen, Qi-Fu.,Ai, Yinshuang.,Chen, Ling.,Jiang, Mingming.,...&Guo, Zhen.(2021).Quaternary sodic and potassic intraplate volcanism in northeast China controlled by the underlying heterogeneous lithospheric structures.GEOLOGY,49(10),1260-1264.

Fan, Xingli,et al."Quaternary sodic and potassic intraplate volcanism in northeast China controlled by the underlying heterogeneous lithospheric structures".GEOLOGY 49.10(2021):1260-1264.