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Correlated crustal and mantle melting documents proto-Tibetan Plateau growth

Urheber*innen
/persons/resource/weili

Li,  Wei
2.4 Seismology, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

He,  Rizheng
External Organizations;

/persons/resource/yuan

Yuan,  X.
2.4 Seismology, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/felix

Schneider,  F. M.
2.4 Seismology, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/tilmann

Tilmann,  Frederik
2.4 Seismology, 2.0 Geophysics, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Guo,  Zhen
External Organizations;

Chen,  Yongshun John
External Organizations;

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Volltexte (frei zugänglich)

5028115.pdf
(Verlagsversion), 4MB

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Zitation

Li, W., He, R., Yuan, X., Schneider, F. M., Tilmann, F., Guo, Z., Chen, Y. J. (2024): Correlated crustal and mantle melting documents proto-Tibetan Plateau growth. - National Science Review, 11, 9, nwae257.
https://doi.org/10.1093/nsr/nwae257


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5028115
Zusammenfassung
The mechanism that causes the rapid uplift and active magmatism of the Hoh-Xil Basin in the northern Tibetan Plateau and hence the outward growth of the proto-plateau is highly debated, more specifically, over the relationship between deep dynamics and surface uplift. Until recently the Hoh-Xil Basin remained uncovered by seismic networks due to inaccessibility. Here, based on linear seismic arrays across the Hoh-Xil Basin, we present a three-dimensional S-wave velocity (VS) model of the crust and uppermost mantle structure beneath the Tibetan Plateau from ambient noise tomography. This model exhibits a widespread partially molten crust in the northern Tibetan Plateau but only isolated pockets in the south manifested as low-VS anomalies in the middle crust. The spatial correlation of the widespread low-VS anomalies with strong uppermost mantle low-VS anomalies and young exposed magmatic rocks in the Hoh-Xil Basin suggests that the plateau grew through lithospheric mantle removal and its driven magmatism.