Subsurface Geology and Tectonics of North Sea Basins
Summary
The North Sea basins encompass a multi-phase record of rifting, sedimentation and inversion that spans from the Devonian to the present. Early extensional tectonics generated a mosaic of half-grabens and tilted fault blocks, subsequently infilled by Carboniferous clastics and coal measures. Permian Zechstein evaporites formed extensive salt layers that, upon mobilisation during the Late Jurassic–Early Cretaceous, produced halokinetic structures and diapirs, influencing sediment pathways and fluid migration. Triassic and Jurassic marine incursions deposited thick clastic successions, while Cretaceous and Cenozoic compressional reactivation of inherited faults created inversion structures, uplifted blocks and segmented reservoirs. Integrating high-resolution seismic imaging, well logs and basin modelling has refined our understanding of heat flow, tectono-stratigraphic architecture and resource potential—including hydrocarbons, geothermal energy and subsurface CO₂ storage. The North Sea thus serves as a global analogue for passive margin evolution, salt-tectonic processes and integrated energy transition strategies.
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Subsurface Geology and Tectonics of North Sea Basins publication trend
The graph below shows the total number of articles in subsurface geology and tectonics of north sea basins across all publications each year (not limited to Nature Index journals).
Technical terms
Rift basin: A depression formed by crustal extension and faulting, which becomes filled by sediments.
Evaporite: A sedimentary deposit, typically halite or gypsum, precipitated from evaporating seawater or lake water.
Diapir: A buoyant mass, commonly salt, that intrudes vertically through overlying strata due to density differences.
Unconformity: A surface representing a hiatus in deposition or an erosional interval between rock units.
Megasequence: A stratigraphic succession bounded by significant unconformities, reflecting large-scale tectonic events.
Fault reactivation: Renewal of movement on a pre-existing fault under a changed stress regime, often during basin inversion.
References
- The search for “Jenyon’s Channel”: The missing link between the Permian basins in the North Sea. Marine and Petroleum Geology (2024).
- Cross-border stratigraphy of the Northern, Central and Southern North Sea: a comparative tectono-stratigraphic megasequence synthesis. Geological Society London Special Publications (2021).
- Characterising the internal structural complexity of the Southern North Sea Zechstein Supergroup Evaporites. Basin Research (2023).
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