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September 10, 2025

Palaeoecological Aspects of Nannoplankton Assemblages of AS-2 Well, Niger Delta

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Authors

EUEkaete Enamekere UmohAjayi Crowther University

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Implication

This analysis reports on nannofossil biostratigraphy and paleoecological preferences, suggesting environmental changes in nannoplankton assemblages.

Key Points

  • The analysis suggests cooler water trends during the Oligocene compared to the Eocene, highlighting significant environmental shifts.
  • Reticulofenestra spp accounted for 49% of nannoplankton taxa, indicating prevalent cool water and eutrophic conditions.
  • Major biozones NP21 and NP20 represent distinct ecological periods of late Eocene and early Oligocene.
  • The study shows a relative increase in cooler-water indicators, reflecting changing nutrient-rich conditions over time.

Cite This Study

Ekaete Enamekere Umoh (2023) studied this question.

synapsesocial.com/papers/68c1e24854b1d3bfb60ff369https://doi.org/10.56534/acjpas.v2i2.91
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Also Consider

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  4. 4Paleocene – Late Oligocene dinoflagellate cysts biostratigraphy, onshore Niger Delta2024
  5. 5Depositional environment and stratigraphic framework of the NS- 1 well, Coastal Swamp Depobelt, Niger Delta Basin: a foraminiferal perspective2024