Results of the gravity field interpretation in the Turčianska Kotlina Basin
The paper deals with the quantitative interpretation of the gravity field in the Turčianska Kotlina Basin. The interpretation was done by means of the application of the 2D density modelling method using the GM-SYS software. Geophysical constraints of the density models are represented by the existi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Earth Science Institute, Slovak Academy of Sciences, Slovakia
2010-12-01
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| Series: | Contributions to Geophysics and Geodesy |
| Subjects: | |
| Online Access: | https://journal.geo.sav.sk/cgg/article/view/31 |
| _version_ | 1818229836482609152 |
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| author | Michal GRINČ Miroslav BIELIK Andrej MOJZEŠ Jozef HÓK |
| author_facet | Michal GRINČ Miroslav BIELIK Andrej MOJZEŠ Jozef HÓK |
| author_sort | Michal GRINČ |
| collection | DOAJ |
| description | The paper deals with the quantitative interpretation of the gravity field in
the Turčianska Kotlina Basin. The interpretation was done by means of the application
of the 2D density modelling method using the GM-SYS software. Geophysical constraints
of the density models are represented by the existing geophysical measurements and interpretations.
The Turčianska Kotlina Basin in the picture of the regional gravity field is
characterized by the local gravity low with amplitude of about 12 mGal. The source of
this gravity low is low density Tertiary sediments, which fill the basin. From the Tertiary
sediments the Neogene sediments play dominant role in observed gravity, because their
gravity effects are considerably larger in comparison with the gravity effects of the Paleogene
sediments. The contacts between the Malá Fatra and Vel’k´a Fatra Mts., and the
Turčianska Kotlina Basin are characterized by the significant gravity gradients. They reflect
tectonic contact between the basin and crystalline core mountains. In the Turčianska
gravity low we can see along the Profile TK-AL three local gravity lows. The highest local
gravity low is explained by the largest thickness of the Tertiary sediments. Another two
local gravity lows are also characterised by thicker layers of the Tertiary sediments. Density
models assume that the eastern (western) part of the basin basement is built by the
Mesozoic (crystalline) rocks. In the central part of the Profile TK-BL the thick Paleogene
sedimentary filling (more than 1 km) compensates the deepest part of the Pretertiary
basement. Density model along the Profile TK-BL does not suggest a presence of the
Paleogene sediments in the basin filling. It is also indicated that the Mesozoic rocks underlie
the Tertiary sediments. The Pretertiary basement was interpreted in the depths
from 0 km up to the 2 km. |
| first_indexed | 2024-12-12T10:24:56Z |
| format | Article |
| id | doaj.art-1e38523291c7467093c08e1489bb33a2 |
| institution | Directory Open Access Journal |
| issn | 1338-0540 |
| language | English |
| last_indexed | 2024-12-12T10:24:56Z |
| publishDate | 2010-12-01 |
| publisher | Earth Science Institute, Slovak Academy of Sciences, Slovakia |
| record_format | Article |
| series | Contributions to Geophysics and Geodesy |
| spelling | doaj.art-1e38523291c7467093c08e1489bb33a22022-12-22T00:27:28ZengEarth Science Institute, Slovak Academy of Sciences, SlovakiaContributions to Geophysics and Geodesy1338-05402010-12-0140210312010.2478/v10126-010-0004-631Results of the gravity field interpretation in the Turčianska Kotlina BasinMichal GRINČ0Miroslav BIELIK1Andrej MOJZEŠ2Jozef HÓK3Department of Applied and Environmental Geophysics, Faculty of Natural Sciences, Comenius UniversityDepartment of Applied and Environmental Geophysics, Faculty of Natural Sciences, Comenius UniversityDepartment of Applied and Environmental Geophysics, Faculty of Natural Sciences, Comenius UniversityDepartment of Geology and Paleontology, Faculty of Natural Sciences, Comenius UniversityThe paper deals with the quantitative interpretation of the gravity field in the Turčianska Kotlina Basin. The interpretation was done by means of the application of the 2D density modelling method using the GM-SYS software. Geophysical constraints of the density models are represented by the existing geophysical measurements and interpretations. The Turčianska Kotlina Basin in the picture of the regional gravity field is characterized by the local gravity low with amplitude of about 12 mGal. The source of this gravity low is low density Tertiary sediments, which fill the basin. From the Tertiary sediments the Neogene sediments play dominant role in observed gravity, because their gravity effects are considerably larger in comparison with the gravity effects of the Paleogene sediments. The contacts between the Malá Fatra and Vel’k´a Fatra Mts., and the Turčianska Kotlina Basin are characterized by the significant gravity gradients. They reflect tectonic contact between the basin and crystalline core mountains. In the Turčianska gravity low we can see along the Profile TK-AL three local gravity lows. The highest local gravity low is explained by the largest thickness of the Tertiary sediments. Another two local gravity lows are also characterised by thicker layers of the Tertiary sediments. Density models assume that the eastern (western) part of the basin basement is built by the Mesozoic (crystalline) rocks. In the central part of the Profile TK-BL the thick Paleogene sedimentary filling (more than 1 km) compensates the deepest part of the Pretertiary basement. Density model along the Profile TK-BL does not suggest a presence of the Paleogene sediments in the basin filling. It is also indicated that the Mesozoic rocks underlie the Tertiary sediments. The Pretertiary basement was interpreted in the depths from 0 km up to the 2 km.https://journal.geo.sav.sk/cgg/article/view/31gravity, geophysics, geology, density modelling, interpretation, turčianska kotlina basin |
| spellingShingle | Michal GRINČ Miroslav BIELIK Andrej MOJZEŠ Jozef HÓK Results of the gravity field interpretation in the Turčianska Kotlina Basin Contributions to Geophysics and Geodesy gravity, geophysics, geology, density modelling, interpretation, turčianska kotlina basin |
| title | Results of the gravity field interpretation in the Turčianska Kotlina Basin |
| title_full | Results of the gravity field interpretation in the Turčianska Kotlina Basin |
| title_fullStr | Results of the gravity field interpretation in the Turčianska Kotlina Basin |
| title_full_unstemmed | Results of the gravity field interpretation in the Turčianska Kotlina Basin |
| title_short | Results of the gravity field interpretation in the Turčianska Kotlina Basin |
| title_sort | results of the gravity field interpretation in the turcianska kotlina basin |
| topic | gravity, geophysics, geology, density modelling, interpretation, turčianska kotlina basin |
| url | https://journal.geo.sav.sk/cgg/article/view/31 |
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