Efstratios Delogkos, Antonio Benedicto

Conventionally, subsurface fluid flow modelling studies have concentrated on the characterization of fracture networks and their capacity to facilitate vertical and lateral fluid movements. This study utilizes unique field observations of oxidation halos in a well-bedded carbonate sequence in the Paris Basin, France, offering new perspectives on fluid flow pathways. It demonstrates that, in addition to fractures, bedding planes also serve as critical conduits for horizontal fluid flow. This research highlights the importance of integrating both fractures and bedding planes to assess connectivity and therefore improve fluid flow models, especially in sedimentary basins. This approach is vital for geoscience and engineering applications, including reservoir management and waste disposal strategies.