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Earth Science Institute of the Slovak Academy of Sciences

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Paleoecological development of the Neogene Sofia Basin (southwestern Bulgaria) based on sedimentological and paleontological evidence

• Geologica Carpathica
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• Volume 59 No.1 / February 2008

Published: Feb 2008

Pages: 59 - 70

Authors: NADJA OGNJANOVA-RUMENOVA, MARLENA YANEVA, IVAN BOTEV

Abstract: Comprehensive lithostratigraphic and biostratigraphic investigation of diatoms, chrysophycean stomatocysts, and mollusc fauna was performed on a borehole C-14, near the village of Katina, from the peripheral zone of the Sofia Neogene Basin. The diatom flora consisted of 302 species, varieties and forms. Principal Component Analysis (PCA) was used to classify the diatom thanatocoenoses. The results of these different analyses presented here indicated three successive stages in the paleoenvironmental development of the Sofia Basin, at the end of the Miocene and the beginning of the Pliocene.

Keywords: Late Miocene-Early Pliocene, Sofia Basin, paleoecology, sedimentology, siliceous microfossils, PCA

Volume 59 no. 1 / February 2008

• MARIAN PUTIS, SERGEY SERGEEV, MARTIN ONDREJKA, ALEXANDER LARIONOV, PAVOL SIMAN, JAN SPISIAK, PAVEL UHER, ILJA PADERIN

  Cambrian-Ordovician metaigneous rocks associated with Cadomian fragments in the West-Carpathian basement dated by SHRIMP on zircons: a record from the Gondwana active margin setting

• MARTIN DANISIK, MILAN KOHUT, ISTVAN DUNKL, WOLFGANG FRISCH

  Thermal evolution of the Ziar Mountains basement (Inner Western Carpathians, Slovakia) constrained by fission track data

• MARIA ALEKSANDRA BITNER, ALFRED DULAI

  Eocene micromorphic brachiopods from north-western Hungary

• MATHIAS HARZHAUSER, MARTIN GROSS, HERBERT BINDER

  Biostratigraphy of Middle Miocene (Sarmatian) wetland systems in an Eastern Alpine intramontane basin (Gratkorn Basin, Austria): the terrestrial gastropod approach

• NADJA OGNJANOVA-RUMENOVA, MARLENA YANEVA, IVAN BOTEV

  Paleoecological development of the Neogene Sofia Basin (southwestern Bulgaria) based on sedimentological and paleontological evidence

• KATARINA HOLCOVA

  Foraminiferal species diversity in the Central Paratethys — a reflection of global or local events?