PALYNOLOGICAL MODEL OF THE LATE NEOGENE SEDIMENTS OF EASTERN SLAVONIA (CROATIA)

Authors

  • Gabrijela Pecimotika INA - Industrija nafte, d.d., Lovinciceva 4, 10002 Zagreb, Hrvatska
  • Dražen Brajković Preradovićeva 29, 10000 Zagreb, Hrvatska
  • Krešimir Krizmanić INA - Industrija nafte, d.d., Lovinciceva 4, 10002 Zagreb, Hrvatska
  • Damir Rakarić INA - Industrija nafte, d.d., Šubićeva 29, 10000 Zagreb, Hrvatska

DOI:

https://doi.org/10.17794/rgn.2015.2.3

Abstract

By applying a palynological analysis of the Late Neogene sediments from one exploration well in the area of Eastern Slavonia, three vegetation zones (Z1, Z2, Z3) as conditioned by climate sensitivity were set. On the basis of mutual percentage relations of the occurrence of individual form-species and grouping them according to the results of cluster analysis, these zones reflect the changes of warm-cold and variable humidity periods. The age of zones has been determined: zone Z1 is Pontian, zone Z2 is Pliocene and zone Z3 is Pleistocene-Holocene. In the Pontian, 13 form-species of spores were determined that do not cross the Miocene/Pliocene boundary. In the Pliocene, 4 index form-species of spores were determined that were not found in the Quaternary in the study area. In the youngest sediments of the study area, i.e. Pleistocene and Holocene, 7 index form-species of spores were determined. Together with well logging (gamma ray and specific resistivity logs) of the formation, a model was constructed for the local routine provision of age in the study area. The results are generally consistent with other results obtained from Early Neogene sediments in adjacent areas in the central part of Paratethys, and may serve as a model for the correlation of contemporaneous sediments in other areas of Croatia, e.g. Sava and Drava Depressions , which in effect may contribute to the more efficient investigation of potential hydrocarbon reservoirs.

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Published

2015-09-30

How to Cite

Pecimotika, G., Brajković, D., Krizmanić, K., & Rakarić, D. (2015). PALYNOLOGICAL MODEL OF THE LATE NEOGENE SEDIMENTS OF EASTERN SLAVONIA (CROATIA). Rudarsko-geološko-Naftni Zbornik, 30(2), 25–49. https://doi.org/10.17794/rgn.2015.2.3

Issue

Section

Geology