The Global Boundary Stratotype Section and Point for the base of the Danian Stage (Paleocene, Paleogene, Tertiary, Cenozoic) at El Kef, Tunisia — Original definition and revision

Eustoquio Molina; Laia Alegret; Ignacio Arenillas; José Antonio Arz; Njoud Gallala; Jan Hardenbol; Katharina von Salis; Étienne Steurbaut; Noël Vandenberghe; Dalila Zaghbib-Turki

doi:10.18814/epiiugs/2006/v29i4/004

December 1, 2006EpisodesOpen Access

The Global Boundary Stratotype Section and Point for the base of the Danian Stage (Paleocene, Paleogene, Tertiary, Cenozoic) at El Kef, Tunisia — Original definition and revision

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Key Points

To review the original definition and provide a revised characterization of the Global Boundary Stratotype Section and Point for the base of the Danian Stage at El Kef, Tunisia.
Lithostratigraphic and high-resolution biostratigraphic analyses across the Cretaceous–Paleogene boundary interval.
Evaluation of geochemical signatures, including iridium anomalies and stable carbon isotope shifts.
Micropaleontological examination of planktic foraminiferal extinctions and calcareous nannofossil turnovers.
The boundary point is precisely anchored at the base of the boundary clay layer matching the catastrophic mass extinction horizon of Cretaceous planktic foraminifera.
A globally synchronous iridium anomaly coincides with the base of the Danian Stage, supporting an asteroid impact event.
Updated biozonations provide criteria for global correlation of the Cretaceous–Paleogene and Danian boundary across marine sections.

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Implication

Stratigraphic analysis revises the Danian Stage boundary stratotype at El Kef, highlighting diagnostic geochemical and microfossil markers across the mass extinction horizon.

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Molina et al. (2006) studied this question.

synapsesocial.com/papers/6a75b945362ed8827e6a3f45 https://doi.org/10.18814/epiiugs/2006/v29i4/004

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The Global Boundary Stratotype Section and Point for the base of the Danian Stage (Paleocene, Paleogene, Tertiary, Cenozoic) at El Kef, Tunisia — Original definition and revision

Key Points

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Implication

Discussion

Cite This Study

The Global Boundary Stratotype Section and Point for the base of the Danian Stage (Paleocene, Paleogene, Tertiary, Cenozoic) at El Kef, Tunisia — Original definition and revision

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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