Sedimentary basins, tectonic zones in the geological development of the Eastern Balkan Range

Pages: 
pp. 63-67
Geological Institute, Bulgarian academy of Scienses, 1113 Sofia, 24 G. Bonchev Str.
Geological Institute, Bulgarian academy of Scienses, 1113 Sofia, 24 G. Bonchev Str.
Abstract: 

In the article is presented geological evolution during Alpine tectonic cycle in the area of the Eastern Balkan Range. The establishment of a tectonic zone is the main tectonic event to take place in an orogenic region, such as the Balkan Range. Tectonic zoning is based on structures, which have specifically developed in the space (in a specific type of rocks) in an exact interval of the geological time. The main define for the zone is the spatial range of the folds formed as a result of the activity of a specific phase.Throughtout its development, the tectonic zone has passed through few phases, namely: establishment of a sedimentary basin, folding of its deposits as a result of the activity of one or more structural phases. The formation of nearly all tectonic zones in the Eastern Balkan Range ends with a horizontal displasement of the rocks, which is more or less regarding the amplitude.
   The main result of the work is the establishment of the tectonic evolution of the Kotel tectonic zone, Kachulka tectonic zone, Sredna Gora tectonic zone and Luda Kamciya tectonic zone in the limits of the Eastern Balkan tectogen.
   A new sedimentary zone was formed in the Eastern Balkan Range during the Oligocene. The last one is not tectonic yet due to the lack of the deformation within its constructive deposits.

М. Паскалев, П. И. Петров. Седиментационные бассейны тектонические зоны в геологическом развитии гор Восточного Балкана (Болгария). В работе обсуждается геологическая эволюция Восточной части Балкана (Старопланинских гор) во время альпийского тектонического цикла. Становление тектонических зон является основным тектоническим событием в данной орогенной области (в данном случае Балканской). Зоны оформляются в определенном типе пород, в которых в точно определенном интервале геологического времени образуются структуры с характерной пространственной приуроченносью. Определяющим для данной зоны является пространственный охват складок, связанных с проявлениями данной фазы. Развитие тектонической зоны проходит через несколько этапов: становление седиментационного бассейна; складчатость пород в ходе проявлений одной или нескольких структурых фаз; горизонтальное перемещение пород на большее или меньшее расстояние (такое перемещение характерно для почти всех тектонических зон в Восточном Балкане). Основным результатом работы является описание последовательностей, выявленных в развиитии тектонических зон, принадлежащих к Восточнобалканскому тектогену, а именно: Котелской, Качулской, Среднегорской и Лудокамчийской зон. Установлено, что во время олигоцена на территории Восточного Балкана создается новая седиментационная зона. Пока еще она не стала тектонической зоной, так как ее отложения не испытали деформаций.

Keywords: 

tectonic zone, sediment basin, Alpine tectonic cycle, fold, nappe

VOLUME 36 (3-4)/December 2007

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria, G. Bonchev Str., Block 24
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria, G. Bonchev Str., Block 24
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria, G. Bonchev Str., Block 24
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria, G. Bonchev Str., Block 24
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria, G. Bonchev Str., Block 24
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria, G. Bonchev Str., Block 24
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria, G. Bonchev Str., Block 24
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria, G. Bonchev Str., Block 24

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev str., bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Bulgaria, 1113 Sofia, Acad. G. Bonchev Str., Bl. 24

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Acad. G. Bonchev St., Bl. 24
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Acad. G. Bonchev St., Bl. 24

Geological Institute of the Bulgarian Academy of Sciences, 1113 Sofia, Acad. G. Bonchev St., 24

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia
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Instituto Andaluz de Ciencias de la Tierra, CSIC, Granada, Spain
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University of Granada, Granada, Spain
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia
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University of Granada, Granada, Spain
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia

Geological Institute, Bulgarian Academy of Sciences, 24 Acad G. Bonchev Str., 1113 Sofia

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia

Geological Institute, Bulgarian academy of Scienses, 1113 Sofia, 24 G. Bonchev Str.
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Geological Institute, Bulgarian academy of Scienses, 1113 Sofia, 24 G. Bonchev Str.

Sofia University “St. Kliment Ohridsky”, 1000 Sofia, 15 Tsar Osvoboditel Blvd.
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Geological Institute Bulgarian Academy of Sciences, 1113 Sofia, 24 G. Bonchev Str.
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Geological Institute Bulgarian Academy of Sciences, 1113 Sofia, 24 G. Bonchev Str.
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Ministry of Environment and Water, 1000 Sofia, 22 Maria Louisa Blvd.

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria
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Geological Institute, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 24, 1113 Sofia, Bulgaria

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

Bulgarian Academy of Sciences, Geological Institute, Acad. G. Bonchev St. Bl. 24, 1113 Sofia, Bulgaria
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Middle East Technical University, Department of Geological Engineering, 06531 Ankara, Turkey
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General Directorate of Mineral Research and Exploration, Department of Geological Research, 06520 Ankara, Turkey
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General Directorate of Mineral Research and Exploration, Department of Geological Research, 06520 Ankara, Turkey

Geophysical Institute, Bulgarian Academy of Sciences, 1113 Sofia
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Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia

Geological Institute, Bulgarian Academy of Sciences
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Geological Institute, Bulgarian Academy of Sciences
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Geological Institute, Bulgarian Academy of Sciences