Abstract
The comprehensive overview of Neogene lithostratigraphy in the eastern Netherlands dates back to the mid-1970s. In the present study, continuous gamma-ray logs and in situ sediment core samples from six boreholes in the area allowed palynological and mollusc analyses and wireline log-based correlation. These investigations were aimed at updating and revising the existing Neogene lithostratigraphy within the Stratigraphic Nomenclature of the Netherlands by integrating litho-, bio-, and sequence-stratigraphic approaches. The analytical results yielded the establishment of new holo-and lectostratotype sections, together with cross-border interregional correlation. The lithostratigraphic revision resulted in the modified definition of the Aalten, Eibergen and Delden members and the definition of two new proposed members: The Dale and Doetinchem members. The Ticheloven bed, removed in earlier studies, is proposed to be reinstated, and the Stemerdink Bed is upgraded in its hierarchical status to the Stemerdink member. All lithostratigraphic units are included in the present Miocene subdivision of the Groote Heide and Diessen formations, which include three recognisable unconformities: The Early-Miocene Unconformity (EMU), Mid-Miocene Unconformity (MMU) and Late-Miocene Unconformity (LMU). The new, revised, reintroduced and existing local lithostratigraphic units and sequences are discussed with their counterparts in the south and southeast of the Netherlands, in Germany and Belgium, and from this a regionally consistent framework has emerged of the regional Neogene lithostratigraphy.
| Original language | English |
|---|---|
| Article number | e7 |
| Journal | Geologie en Mijnbouw/Netherlands Journal of Geosciences |
| Volume | 103 |
| DOIs | |
| Publication status | Published - 1 Apr 2024 |
Bibliographical note
Publisher Copyright:© The Author(s), 2024.
Funding
The authors specially thank Nico Janssen (TNO) and Malcolm Jones (ex-PLS- UK) for the palynological sample preparation. Susan Kerstholt-Boegehold (ex-TNO) is acknowledged for her share of the dinoflagellate cyst analysis over the years. We are indebted to Mr. J. van der Voort (Ostercappeln, Germany) for updating the nomenclature and critical reading of molluscan sections of this manuscript. Johan ten Veen (TNO) is appreciated for his lithostratigraphic discussion and his seismic study of the eastern Netherlands. The members of the Dutch Stratigraphical Commission are thanked for discussion and for embracing the proposal of update and revision of the lithostratigraphy in the eastern part of the country in 2022. We wish to express our extraordinary gratitude to Ed F. de Vogel and Arie W. Janssen, both of whom died in 2021. Arie Janssen was the main driver of the Miste excavations and the expert on the molluscan faunas from the Miocene of the region, whilst Ed De Vogel made very important early studies of the successions and biostratigraphy zonation of the Miocene successions. He was deeply involved in this study. Nik Trabucho (TNO) is gratefully recognised for his help in composing and improving the figures. We also express our gratitude to Jef Deckers (Flemish Institute for Technical Research), Jasper Verhaegen (Department of Environment of the Flemish Government) and an anonymous reviewer who improved the manuscript. Jef Deckers is also much appreciated for his cooperation in the updating of the schematic cross-section graphics, in part of the Antwerp area (Figure 18). Phil Gibbard (University of Cambridge) is highly appreciated for improving (the English in) the final manuscript. Rick Donselaar (University of Delft) is acknowledged for his help on parts of the text and his assistance as an associate editor of the Netherlands Journal of Geosciences.
Keywords
- Dinoflagellate cysts
- lithostratigraphy
- Neogene
- southern North Sea Basin
- Stratigraphic Nomenclature NL