Geothermal Conditions and Mesozoic-Cainozoic Evolution of the Carpatho-Pannonian Region
This paper presents new two-dimensional (2D) numerical geothermal models of the lithosphere and the results of their geodynamic analysis together with the crustal structure models along three deep seismic sounding profiles crossing the Western and Eastern Carpathians from the Pannonian basin to the...
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Subbotin Institute of Geophysics of the NAS of Ukraine
2016
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journalsuranua-geofizicheskiy-article-1078232020-10-07T11:19:44Z Geothermal Conditions and Mesozoic-Cainozoic Evolution of the Carpatho-Pannonian Region Kutas, R. I. Carpathians Earth crust astenosphere heat flow geothermal model This paper presents new two-dimensional (2D) numerical geothermal models of the lithosphere and the results of their geodynamic analysis together with the crustal structure models along three deep seismic sounding profiles crossing the Western and Eastern Carpathians from the Pannonian basin to the Paleozoic West European and the Precambrian East European Platforms. The construction and interpretation of the geothermal 2D models are based on the numerical solution of both the steady state and transient heat conduction equations. The obtained geophysical and geothermal models demonstrate the significant variations in the lithosphere thickness, crustal layering, temperatures and seismic velocities distribution. Taking into consideration the crustal structure and heat flow distribution, all cross-sections can be divided into three sectors with different age of the crust: Neoalpine, Mesozoic—Late Paleozoic, early Paleozoic—Late Proterozoic. The boundaries between sectors mismatch a tectonic zonation of the upper crust. The heat flow density reaches 80—130 mW/m2 in the Pannonian basin and Transcarpathian trough (areas of Neoalpine tectonic activity). It decreases to 60—70 mW/m2 in the Inner Carpathians, inner part of the Outer Carpathians and on the West European platform (areas of Mesozoic—Late Paleozoic activity), and to 35—60 mW/m2 in the most of the Outer Carpathians, in Carpathian foredeep, Trans European suture zone, as well as the East European margin (areas of early Paleozoic—Late Proterozoic activity). The decrease in heat flow is accompanied with an increase in the lithosphere and crust thickness. The geothermal lithosphere thickness varies from 65—80 km beneath the Pannonian basin to 120—150 km beneath the Inner Carpathians and the Paleozoic platform, and to 180—200 km beneath the East European platform, and the depth of Moho discontinuity changes from 22—30 km to 30—40 km and 40—50 km accordingly. The high heat flow in the Pannonian basin is of a mantle origin. It is caused by the Miocene extension and lithosphere thinning, formation of fault and rift systems, the asthenospheric upwelling due to the subduction of the oceanic lithosphere in the time interval from late Cretaceous to Paleogene. The current structure of the Carpathian-Pannonian region was formed as a result of Neogene continental collision between the European plate and the Alcapa and Tisza microplates. Being developed in a compressional stress regime, the collision process was accompanied by lateral relative movements of the microplates along the shear zones, the upper Alcapa crust obducting over the Pennine tectonic unit or the platform margins, and underthrusting of the Pannonian lower crust and the uppermost mantle beneath the lithosphere of the European plate. Subbotin Institute of Geophysics of the NAS of Ukraine 2016-08-01 Article Article application/pdf https://journals.uran.ua/geofizicheskiy/article/view/107823 10.24028/gzh.0203-3100.v38i5.2016.107823 Geofizicheskiy Zhurnal; Vol. 38 No. 5 (2016); 75-107 Геофизический журнал; Том 38 № 5 (2016); 75-107 Геофізичний журнал; Том 38 № 5 (2016); 75-107 2524-1052 0203-3100 rus https://journals.uran.ua/geofizicheskiy/article/view/107823/102773 Copyright (c) 2020 Geofizicheskiy Zhurnal https://creativecommons.org/licenses/by/4.0 |
| institution |
Geofizicheskiy Zhurnal |
| baseUrl_str |
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| datestamp_date |
2020-10-07T11:19:44Z |
| collection |
OJS |
| language |
rus |
| topic |
Carpathians Earth crust astenosphere heat flow geothermal model |
| spellingShingle |
Carpathians Earth crust astenosphere heat flow geothermal model Kutas, R. I. Geothermal Conditions and Mesozoic-Cainozoic Evolution of the Carpatho-Pannonian Region |
| topic_facet |
Carpathians Earth crust astenosphere heat flow geothermal model |
| format |
Article |
| author |
Kutas, R. I. |
| author_facet |
Kutas, R. I. |
| author_sort |
Kutas, R. I. |
| title |
Geothermal Conditions and Mesozoic-Cainozoic Evolution of the Carpatho-Pannonian Region |
| title_short |
Geothermal Conditions and Mesozoic-Cainozoic Evolution of the Carpatho-Pannonian Region |
| title_full |
Geothermal Conditions and Mesozoic-Cainozoic Evolution of the Carpatho-Pannonian Region |
| title_fullStr |
Geothermal Conditions and Mesozoic-Cainozoic Evolution of the Carpatho-Pannonian Region |
| title_full_unstemmed |
Geothermal Conditions and Mesozoic-Cainozoic Evolution of the Carpatho-Pannonian Region |
| title_sort |
geothermal conditions and mesozoic-cainozoic evolution of the carpatho-pannonian region |
| description |
This paper presents new two-dimensional (2D) numerical geothermal models of the lithosphere and the results of their geodynamic analysis together with the crustal structure models along three deep seismic sounding profiles crossing the Western and Eastern Carpathians from the Pannonian basin to the Paleozoic West European and the Precambrian East European Platforms. The construction and interpretation of the geothermal 2D models are based on the numerical solution of both the steady state and transient heat conduction equations. The obtained geophysical and geothermal models demonstrate the significant variations in the lithosphere thickness, crustal layering, temperatures and seismic velocities distribution. Taking into consideration the crustal structure and heat flow distribution, all cross-sections can be divided into three sectors with different age of the crust: Neoalpine, Mesozoic—Late Paleozoic, early Paleozoic—Late Proterozoic. The boundaries between sectors mismatch a tectonic zonation of the upper crust. The heat flow density reaches 80—130 mW/m2 in the Pannonian basin and Transcarpathian trough (areas of Neoalpine tectonic activity). It decreases to 60—70 mW/m2 in the Inner Carpathians, inner part of the Outer Carpathians and on the West European platform (areas of Mesozoic—Late Paleozoic activity), and to 35—60 mW/m2 in the most of the Outer Carpathians, in Carpathian foredeep, Trans European suture zone, as well as the East European margin (areas of early Paleozoic—Late Proterozoic activity). The decrease in heat flow is accompanied with an increase in the lithosphere and crust thickness. The geothermal lithosphere thickness varies from 65—80 km beneath the Pannonian basin to 120—150 km beneath the Inner Carpathians and the Paleozoic platform, and to 180—200 km beneath the East European platform, and the depth of Moho discontinuity changes from 22—30 km to 30—40 km and 40—50 km accordingly. The high heat flow in the Pannonian basin is of a mantle origin. It is caused by the Miocene extension and lithosphere thinning, formation of fault and rift systems, the asthenospheric upwelling due to the subduction of the oceanic lithosphere in the time interval from late Cretaceous to Paleogene. The current structure of the Carpathian-Pannonian region was formed as a result of Neogene continental collision between the European plate and the Alcapa and Tisza microplates. Being developed in a compressional stress regime, the collision process was accompanied by lateral relative movements of the microplates along the shear zones, the upper Alcapa crust obducting over the Pennine tectonic unit or the platform margins, and underthrusting of the Pannonian lower crust and the uppermost mantle beneath the lithosphere of the European plate. |
| publisher |
Subbotin Institute of Geophysics of the NAS of Ukraine |
| publishDate |
2016 |
| url |
https://journals.uran.ua/geofizicheskiy/article/view/107823 |
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AT kutasri geothermalconditionsandmesozoiccainozoicevolutionofthecarpathopannonianregion |
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2025-07-17T11:05:00Z |
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