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DOI	10.1016/j.epsl.2020.116686
	Shear-wave velocity structure beneath the Dinarides from the inversion of Rayleigh-wave dispersion
	Belinić T.; Kolínský P.; Stipčević J.; the AlpArray Working Group
发表日期	2021
ISSN	0012821X
卷号	555
英文摘要	The interaction between the Adriatic microplate (Adria) and Eurasia is the main driving factor in the central Mediterranean tectonics. Their interplay has shaped the geodynamics of the whole region and formed several mountain belts including Alps, Dinarides and Apennines. Among these, Dinarides are the least investigated and little is known about the underlying geodynamic processes. There are numerous open questions about the current state of interaction between Adria and Eurasia under the Dinaric domain. One of the most interesting is the nature of lithospheric underthrusting of Adriatic plate, e.g. length of the slab or varying slab disposition along the orogen. Previous investigations have found a low-velocity zone in the uppermost mantle under the northern-central Dinarides which was interpreted as a slab gap. Conversely, several newer studies have indicated the presence of the continuous slab under the Dinarides with no trace of the low velocity zone. Thus, to investigate the Dinaric mantle structure further, we use regional-to-teleseismic surface-wave records from 98 seismic stations in the wider Dinarides region to create a 3D shear-wave velocity model. More precisely, a two-station method is used to extract Rayleigh-wave phase velocity while tomography and 1D inversion of the phase velocity are employed to map the depth dependent shear-wave velocity. Resulting velocity model reveals a robust high-velocity anomaly present under the whole Dinarides, reaching the depths of 160 km in the north to more than 200 km under southern Dinarides. These results do not agree with most of the previous investigations and show continuous underthrusting of the Adriatic lithosphere under Europe along the whole Dinaric region. The geometry of the down-going slab varies from the deeper slab in the north and south to the shallower underthrusting in the center. On-top of both north and south slabs there is a low-velocity wedge indicating lithospheric delamination which could explain the 200 km deep high-velocity body existing under the southern Dinarides. © 2020 Elsevier B.V.
关键词	collision Dinarides lithosphere surface waves
英文关键词	Acoustic wave velocity; Geodynamics; Phase velocity; Rayleigh waves; Shear waves; Structural geology; Central Mediterranean; Lithospheric delaminations; Low velocity zones; Rayleigh-wave dispersion; Rayleigh-wave phase velocity; Shear wave velocity; Shear wave velocity models; Shear wave velocity structure; Shear flow; collision; data inversion; geodynamics; Rayleigh wave; S-wave; seismic velocity; three-dimensional modeling; velocity structure; wave dispersion
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203030
作者单位	KrakenSystems Ltd, Zagreb, Croatia; Department of Meteorology and Geophysics, University of Vienna, Vienna, Austria; Department of Geophysics, University of Zagreb, Zagreb, Croatia
推荐引用方式 GB/T 7714	Belinić T.,Kolínský P.,Stipčević J.,et al. Shear-wave velocity structure beneath the Dinarides from the inversion of Rayleigh-wave dispersion[J],2021,555.
APA	Belinić T.,Kolínský P.,Stipčević J.,&the AlpArray Working Group.(2021).Shear-wave velocity structure beneath the Dinarides from the inversion of Rayleigh-wave dispersion.Earth and Planetary Science Letters,555.
MLA	Belinić T.,et al."Shear-wave velocity structure beneath the Dinarides from the inversion of Rayleigh-wave dispersion".Earth and Planetary Science Letters 555(2021).