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    STUDIA GEOLOGIA - Issue no. 1 / 2016  
         
  Article:   LATE OLIGOCENE CALCAREOUS NANNOFOSSILS FROM ALBANIANTHESSALIAN INTRAMONTANE BASIN (BOZDOVEC SECTION, ALBANIA) - A QUANTITATIVE APPROACH.

Authors:  .
 
       
         
  Abstract:  Quantitative and semi-quantitative analyses of calcareous nannofossils were performed on samples collected from Bozdovec Section (Albanian-Thessalian intramontane basin, Albania). The calcareous nannofossil assemblages are dominated by: small reticulofenestrids, Cycligargolithus floridanus, Coccolithus pelagicus, Sphenolithus spp., Reticulofenestra scrippsae, Helicosphaera spp., Clausicoccus spp., Reticulofenestra bisecta, Cycligargolithus abisectus. Biostratigraphically, the studied outcrop is assigned to the Late Oligocene NP25 - Sphenolithus ciperoensis Zone. In the Mediterranean area, this interval can be correlated with the MNP25a - Sphenolithus ciperoensis Zone, while according to the zonation for low to middle latitudes the investigated material would belong to the CNO5 - Sphenolithus ciperoensis TZ. High amounts of small reticulofenestrids and sphenoliths point to warm well stratified paleoenvironment.

Keywords: Late Oligocene, Mediterranean area, Albanian-Thessalian intramontane basin, biostratigraphy, calcareous nannofossils, statistics.
Received: September 2015; accepted December 2015
Available online 4 January 2016
DOI: http://dx.doi.org/10.5038/1937-8602.60.1.1286
 
         
     
         
         
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