Palynostratigraphy of the Ireček Formation (Upper Visean – Lower Namurian) from Dobrudža Coal Basin, North-East Bulgaria

Pages: 
pp. 55-63
Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
Abstract: 

New palynostratigraphic data on the Ireček Formation in Dobroudža Coal Basin, NE Bulgaria, are presented in this paper. 34 samples collected from 4 well sections have been studied. They yielded relatively rich and varied miospore assemblages. Four successive miospore zones have been defined, designated as (a), (b), (c) and (d) in ascending order. These zones correspond to the earlier established VF, NC and TK zones of the Carboniferous in Great Britain and Western Europe. That correlation suggests a late Visean to early Namurian age for the sediments of the Ireček Formation.

Т. Димитрова. Палиностратиграфия Иреческой свиты (верхний визе — нижний намор) Добруджанского угольного бассейна, Северо-Восточная Болгария. В статье отражены результаты палинологического изучения Иречекской свиты Добруджанского угольного бассейна. Исследования базируются на 34 образцах из четырех скважин. Благодаря выделенным палинологическим комплексам, богатым в видовом отношении, были диагностированы четыре из них (a, b, cи d). Они коррелируются с миоспоровыми зонами для Британских седиментов, респективно для Западной Европы, и характеризируют седименты, имеющие возраст поздний визе — ранний намюр.

VOLUME 23 (4)/August 1993

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia

Geological Institute, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
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Facilty of Mining and Geology, University of Belgrade, 11 000 Belgrade

University of Mining and Geology, 1156 Sofia
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University of Sofia "St. Kl. Ochridski", 1000 Sofia

Department of Geology, Shimane University, Nishikawatssu 1060, Matsue 690, Japan
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Department of Geology, Shimane University, Nishikawatssu 1060, Matsue 690, Japan
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Scientific Research Institute of Mineral Resources, Sitnyakovo Blvd 23, 1505 Sofia, Bulgaria

Geology and Geophysics Ltd., Sitnyakovo 24, 1505 Sofia
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Mining and Geology University, Sofia
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Mining and Geology University, Sofia

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