Postcollisional lithospheric evolution of the Southeast Carpathians: Comparison of geodynamical models and observations

Oğuz H. Göğüş*, Russell N. Pysklywec, Claudio Faccenna

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: Dergiye katkıMakalebilirkişi

35 Atıf (Scopus)

Özet

Seismic evidence and thermal and topographic transients have led to the interpretation of lithospheric removal beneath the Southeast Carpathians region. A series of numerical geodynamic experiments in the context of the tectonic evolution of the region are conducted to test the surface-crustal response to lithosphere delamination and slab break-off. The results show that a delamination-type removal (“plate-like” migrating instability) causes a characteristic pattern of surface uplift/subsidence and crustal extension/shortening to occur due to the lithospheric deformation and dynamic/thermal forcing of the sublithospheric mantle. These features migrate with the progressive removal of the underlying lithosphere. Model results for delamination are comparable with observables related to the geodynamic evolution of the Southeast Carpathians since 10 Ma: the mantle structure inferred by seismic tomography, migrating patterns of uplift (>1.5 km) and subsidence (>2 km) in the region, crustal thinning in the Carpathian hinterland and thickening at the Focsani depression, and regional extension in the Carpathian corner (e.g., opening of Brasov basin) correlating with volcanism (e.g., Harghita and Persani volcanics) in the last 3 Myr.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)1205-1224
Sayfa sayısı20
DergiTectonics
Hacim35
Basın numarası5
DOI'lar
Yayın durumuYayınlandı - 1 May 2016

Bibliyografik not

Publisher Copyright:
© 2016, American Geophysical Union. All Rights Reserved.

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