The middle/late Eocene transition in the Eastern Carpathians (Romania) based on foraminifera and calcareous nannofossil assemblages

Bindiu, R.; Filipescu, S.; Balc, R.; Cocis, L.; Gligor, D.

doi:10.7306/gq.1237

Artykuł - szczegóły

Tytuł artykułu

The middle/late Eocene transition in the Eastern Carpathians (Romania) based on foraminifera and calcareous nannofossil assemblages

Autorzy

Bindiu R. , Filipescu S. , Balc R. , Cocis L. , Gligor D.

Treść / Zawartość

Pełne teksty:

Bindiu_R_The Middle_Geol. Quart._Vol. 60_No 1_2016.pdf

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Identyfikatory

DOI

10.7306/gq.1237

Warianty tytułu

Języki publikacji

Abstrakty

Foraminiferal and calcareous nannofossil assemblages from the Eastern Carpathians (northern part of the Tarcău Nappe, Romania) were documented and correlated in order to reconstruct the palaeonvironmental settings and provide a biostratigraphic framework of the Plopu Formation. The benthic foraminiferal assemblages are dominated by flysch-type agglutinated taxa, suggesting a bathyal palaeodepth with frequent oscillations of the carbon compensation depth. The agglutinated foraminifera morphogroup analyses suggest different levels of organic matter influx and oxygenation. Both the foraminifera and calcareous nannofossil assemblages suggest a shift between the warm mid Eocene to the cooler late Eocene climate. Biostratigraphic data based on calcareous nannofossils (NP15–NP19/NNTe8–NNTe12 biozones) helped to establish the age of the formation. Four assemblages of benthic agglutinated foraminifera (Psammosiphonella cylindrica – Nothia excelsa; Paratrochamminoides spp. – Trochamminoides spp.; Karrerulina spp.– Reticulophragmium amplectens; Spiroplectammina spectabilis) correlated with calcareous nannofossil bioevents supported the placement of the mid to late Eocene transition within the Plopu Formation.

Słowa kluczowe

microfossils biostratigraphy paleoecology turbidites Tarcău Nappe

Wydawca

Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy

Czasopismo

Geological Quarterly

Rocznik

2016

Tom

Vol. 60, No. 1

Strony

38--55

Opis fizyczny

Bibliogr. 96 poz., mapy, rys., tab., wykr.

Twórcy

autor

Bindiu R.

raluca.bindiu@ubbcluj.ro

Babeş-Bolyai University, Faculty of Biology and Geology, Department of Geology, 1 Mihail Kogãlniceanu Street, 400084 Cluj-Napoca, Romania

autor

Filipescu S.

Babeş-Bolyai University, Faculty of Biology and Geology, Department of Geology, 1 Mihail Kogãlniceanu Street, 400084 Cluj-Napoca, Romania

autor

Balc R.

Babeş-Bolyai University, Faculty of Environmental Science and Engineering, 30 Fântânele Street, 400294 Cluj-Napoca, Romania

autor

Cocis L.

Babeş-Bolyai University, Faculty of Environmental Science and Engineering, 30 Fântânele Street, 400294 Cluj-Napoca, Romania

autor

Gligor D.

Babeş-Bolyai University, Faculty of Environmental Science and Engineering, 30 Fântânele Street, 400294 Cluj-Napoca, Romania

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.

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Bibliografia

Identyfikator YADDA

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