Author: M. Tumanian1
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  • 1 Institute of Geodynamics “Sabba S. Ştefănescu” of the Romanian Academy Str. Jean-Louis Calderon 19–21 R-020032 Bucharest-37 Romania
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This study proposes a re-evaluation of the thermal models for lithosphere in the main tectonic units of the extra-Carpathian area (Central Moesian Platform, Black Sea Block and East-European Platform) and a minimization of the uncertainties in the spatial distribution of the parameters required in thermal modelling, by assimilation of available information supplied by tomographic seismic data, using the seismic wave velocity — temperature conversion. The thermal structures of the three tectonic compartments are estimated through the extrapolation of the surface heat flow determinations and by thermal modelling simulating the main geodynamic processes affecting the lithospheric structures (sedimentation in the Focşani Depression, magma eruption in the Neogene volcanic belt and convergence process in the Eastern Carpathians). Forcing the 1D and/or 2D thermal models (heat flow derived geotherms) to fit the seismic constraints (seismic derived geotherms) the more plausible values for the thermal parameters are assessed. The rheological structures in the investigated zones are then obtained by valuating the developed thermal models and are interpreted in correlation with the characteristics of the seismic wave propagation process — quality factor of the medium Q , provided by recent seismic studies.

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Acta Geodaetica et Geophysica
Language English
Size B5
Year of
Foundation
2013
Volumes
per Year
1
Issues
per Year
4
Founder Magyar Tudományos Akadémia
Founder's
Address
H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó Springer
Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 2213-5812 (Print)
ISSN 2213-5820 (Online)

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