Recent Tectonic Activity in the Imotsko Polje Area
<div>Displacements of the Adriatic microplate, particularly of its</div><div>southern part, are of crucial importance for the understanding of</div><div>recent tectonic movements. Deformations of the structural fabric and</div><div>the resulting tectonic act...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Croatian Geological Survey
2010-11-01
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| Series: | Geologia Croatica |
| Subjects: | |
| Online Access: | http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/271 |
| _version_ | 1828355333393743872 |
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| author | Ivan Dragičević Eduard Prelogović Vlado Kuk Renato Buljan |
| author_facet | Ivan Dragičević Eduard Prelogović Vlado Kuk Renato Buljan |
| author_sort | Ivan Dragičević |
| collection | DOAJ |
| description | <div>Displacements of the Adriatic microplate, particularly of its</div><div>southern part, are of crucial importance for the understanding of</div><div>recent tectonic movements. Deformations of the structural fabric and</div><div>the resulting tectonic activity also encompass the studied area. There</div><div>are four most active fault zones - Mosor-Biokovo, Zagvozd-Vrgorac-</div><div>Metkoviæ, Trilj-Tihaljina-Èapljina and Imotski-Meðugorje-Popovo</div><div>polje. In the explored area, these zones delimit the Imotsko polje.</div><div>The calculated regional stress is oriented in the range between</div><div>10-190¡ and 350-170¡. The relationship between the orientation of</div><div>structural units and stress enables reverse displacements, most frequently in the direction of the south and south-east. The change in</div><div>stress orientation in the Mt. Biokovo hinterland makes the aforementioned fault zones surrounding the Imotsko polje favourably oriented in respect to the stress, thus enabling dextral horizontal tectonic transport of the structures in different fault blocks.</div><div>In the two fault zones - Trilj-Tihaljina-Èapljina and Imotski-</div><div>Meðugorje-Popovo polje, there are 98 outcrops suitable for the structural</div><div>geology measurements. The obtained data on the local stress orientation and spatial displacement of structures are the most important.</div><div>The character of faults and the most active fault sections are marked,</div><div>as well as the local structures that are formed due to strong horizontal</div><div>component of structural displacement in the studied fault zones.</div><div>Recent tectonic activity is confirmed by the occurrence of earthquakes.</div><div>Spatial distribution of the earthquake epicentres depicts zones</div><div>of seismotectonic activity that are related to the aforementioned most</div><div>important fault zones. Two of the fault zones - Trilj-Tihaljina-Èapljina</div><div>and Imotski-Meðugorje-Popovo polje are especially well marked</div><div>by earthquakes occurring at depths of between 3 and 15 km.</div> |
| first_indexed | 2024-04-14T02:40:33Z |
| format | Article |
| id | doaj.art-e0b896fb0a7940c4a5142692cb625df7 |
| institution | Directory Open Access Journal |
| issn | 1330-030X 1333-4875 |
| language | English |
| last_indexed | 2024-04-14T02:40:33Z |
| publishDate | 2010-11-01 |
| publisher | Croatian Geological Survey |
| record_format | Article |
| series | Geologia Croatica |
| spelling | doaj.art-e0b896fb0a7940c4a5142692cb625df72022-12-22T02:17:11ZengCroatian Geological SurveyGeologia Croatica1330-030X1333-48752010-11-0152219119610.4154/GC.1999.14183Recent Tectonic Activity in the Imotsko Polje AreaIvan Dragičević0Eduard Prelogović1Vlado Kuk2Renato Buljan3Faculty of Mining, Geology and Petroleum EngineeringFaculty of Mining, Geology and Petroleum EngineeringDepartment of Geophysics, Faculty of ScienceCroatian Geological Survey<div>Displacements of the Adriatic microplate, particularly of its</div><div>southern part, are of crucial importance for the understanding of</div><div>recent tectonic movements. Deformations of the structural fabric and</div><div>the resulting tectonic activity also encompass the studied area. There</div><div>are four most active fault zones - Mosor-Biokovo, Zagvozd-Vrgorac-</div><div>Metkoviæ, Trilj-Tihaljina-Èapljina and Imotski-Meðugorje-Popovo</div><div>polje. In the explored area, these zones delimit the Imotsko polje.</div><div>The calculated regional stress is oriented in the range between</div><div>10-190¡ and 350-170¡. The relationship between the orientation of</div><div>structural units and stress enables reverse displacements, most frequently in the direction of the south and south-east. The change in</div><div>stress orientation in the Mt. Biokovo hinterland makes the aforementioned fault zones surrounding the Imotsko polje favourably oriented in respect to the stress, thus enabling dextral horizontal tectonic transport of the structures in different fault blocks.</div><div>In the two fault zones - Trilj-Tihaljina-Èapljina and Imotski-</div><div>Meðugorje-Popovo polje, there are 98 outcrops suitable for the structural</div><div>geology measurements. The obtained data on the local stress orientation and spatial displacement of structures are the most important.</div><div>The character of faults and the most active fault sections are marked,</div><div>as well as the local structures that are formed due to strong horizontal</div><div>component of structural displacement in the studied fault zones.</div><div>Recent tectonic activity is confirmed by the occurrence of earthquakes.</div><div>Spatial distribution of the earthquake epicentres depicts zones</div><div>of seismotectonic activity that are related to the aforementioned most</div><div>important fault zones. Two of the fault zones - Trilj-Tihaljina-Èapljina</div><div>and Imotski-Meðugorje-Popovo polje are especially well marked</div><div>by earthquakes occurring at depths of between 3 and 15 km.</div>http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/271Active fault zonesStressStructuresEarthquakesImotsko poljeCroatia |
| spellingShingle | Ivan Dragičević Eduard Prelogović Vlado Kuk Renato Buljan Recent Tectonic Activity in the Imotsko Polje Area Geologia Croatica Active fault zones Stress Structures Earthquakes Imotsko polje Croatia |
| title | Recent Tectonic Activity in the Imotsko Polje Area |
| title_full | Recent Tectonic Activity in the Imotsko Polje Area |
| title_fullStr | Recent Tectonic Activity in the Imotsko Polje Area |
| title_full_unstemmed | Recent Tectonic Activity in the Imotsko Polje Area |
| title_short | Recent Tectonic Activity in the Imotsko Polje Area |
| title_sort | recent tectonic activity in the imotsko polje area |
| topic | Active fault zones Stress Structures Earthquakes Imotsko polje Croatia |
| url | http://www.geologia-croatica.hr/ojs/index.php/GC/article/view/271 |
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