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Carpathian Journal of Earth and Environmental Sciences

An International Peer-Reviewed Open Access Journal

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ARTICLE IN » Volume 18, 2023 - Number 1

PALEODICTYON ASSEMBLAGE FROM FRASIN, SUCEAVA COUNTY (EASTERN CARPATHIANS, ROMANIA)



Anca SESERMAN1*, Silvia MARE2, & Sergiu LOGHIN1
1Department of Geology, “Al. I. Cuza” University, 20A Carol I Blv., 700505, Iași, Romanian, anca.seserman@uaic.ro, sergiu.loghin@uaic.ro
2CGG Services (UK) Ltd, silvia.mare@cgg.com, *corresponding author. anca.seserman@uaic.com


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Abstract

DOI: 10.26471/cjees/2023/018/244

Hypichnia with Strobilorharphe, Megagrapton, Spirodesmos, Helminthopsis, Treptichnus, and the elite Paleodictyon, representative for „deep-sea farmers” (graphoglyptides) of the Paleodictyon ichnosubfacies, belonging to Nereites ichnofacies is described in Lower-Middle Eocene flysch deposits of Tarcău Nappe (in the north of Eastern Carpathians). The Paleodictyon is preserved as three superimposed networks, covering a half square meter of lower bounding surface of a Tc bed, indicating a quasi-nonerosive character of the turbidity current which exhumed the pre-depositional delicate farming traces. This paleoenvironment is supported by the agglutinated foraminifera, dominated by tubular forms (Bathysiphon sp., Psammosiphonella cylindrica, Nothia excelsa) collected from shale the above and below turbidite bed, accumulated in relative quiet intervals, depleted of nutrients and oxygen. Such conditions may exist in offshore, where organisms develop highly organized feeding strategies.

Keywords:
  • Paleodictyon
  • carpathicum
  • Nereites
  • ichnofacies
  • &bdquo
  • deep-sea
  • farmers&rdquo
  • Tarcău
  • Nappe
  • Eastern
  • Carpathians

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© 2023 by the author(s). Licensee CJEES, Carpathian Association of Environment and Earth Sciences. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

How to cite

Anca SESERMAN, Silvia MARE, & Sergiu LOGHIN (2023). PALEODICTYON ASSEMBLAGE FROM FRASIN, SUCEAVA COUNTY (EASTERN CARPATHIANS, ROMANIA), Carpathian Journal of Earth and Environmental Sciences February 2023, Vol. 18, No. 1, p. 105 – 113; https://doi.org/10.26471/cjees/2023/018/244

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