Stratigraphic and Tectonic development of the Nyk High
Master thesis
Åpne
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https://hdl.handle.net/11250/3072390Utgivelsesdato
2023-06-01Metadata
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- Department of Earth Science [1034]
Sammendrag
This thesis aims to develop a holistic model of the stratigraphical and tectonic development of the Nyk High structure in the Northern Vøring Basin, explicitly focusing on the Cretaceous-Paleocene transition. The thesis investigates existing studies and research conducted in the area to interpret the Nyk High's structural development accurately. It seeks to interpret how the structural changes during this period influenced the subsequent stratigraphy up to the present. This thesis aims to clarify interpretations of the Northern Vøring Basin and understand the structural development of the Nyk High and changes in stratigraphical thickness. Contrasting views from the literature are examined and discussed in detail. A thick Paleocene succession in the Hel Graben and well-preserved Cretaceous taxa north of it drive the investigation. The study explores the potential role of the Nyk High collapse in the Paleocene stratigraphy. The thesis also discusses different interpretations of the BTU in the Luva well, highlighting a discrepancy in well-top depth. In conclusion, this thesis aims to understand the structural and tectonic evolution of the Nyk High. The findings indicate a need to revise the well stratigraphy in the 6707/10-1 Luva well and suggest further investigations in the 6706/6-2 S well. The holistic model aligns with the compression regime that led to an inversion of the Vema-Nyk anticline and its subsequent collapse proposed by Lundin et al. (2013) while also supporting Zastrozhnov et al.'s (2018) idea of severe collapse and the presence of Cretaceous taxa in the Paleocene Tang Formation in the Hel Graben. The study highlights the compatibility of both models in explaining the thick Paleocene successions observed in the Hel Graben. These insights contribute to our understanding of the Nyk High's development and the geological dynamics of the region.
Beskrivelse
Postponed access: the file will be accessible after 2024-06-01