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<p>Developing a comprehensive understanding of reservoir architecture relies heavily on three-dimensional geological and hydrostratigraphic modeling. This study introduces the first 3D geological and hydrostratigraphic model of the Agourai Plateau, developed through the integration of diverse datasets, including borehole logs, geophysical surveys, geological maps, and structural network analyses. The model delineates the boundaries of geological formations to unravel the region’s complex geological framework. In which the integration of piezometric data into the solid model represents an improved approach compared to the conventional solid geological model. This integration enabled the generation of a detailed piezometric map that captures the inherent complexity of the karst system and facilitated the creation of high-resolution hydraulic cross-sections. The construction of the model was carried out using the Groundwater Modeling System (GMS) software, recognized for its advanced capabilities in three-dimensional subsurface modeling. This comprehensive model provides a refined visualization of the spatial distribution and variability of geological units, enabling a robust assessment of the aquifer’s storage capacity. The Agourai Plateau was classified into eight distinct geological units, starting with the foundational basement rock and extending to the overlying layers constituting the aquifer system. The total storage volume of the karst aquifer was estimated at 36.3 × 10⁹ m³, highlighting its significance as a regional water resource. Moreover, the model sheds light on spatial heterogeneities between geological units and elucidates the structural framework, including the distribution of major faults that critically influence aquifer dynamics. A comprehensive analysis of subsurface flow patterns was also conducted, offering valuable insights into the status of abandoned quarries and their implications for groundwater resources. This integrative approach provides a robust scientific foundation for the sustainable management and protection of water resources in vulnerable karst environments.</p>

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Development of a 3D geological and hydrostratigraphic model for the Agourai plateau: Insights into karst aquifer dynamics and structural framework

  • 期刊论文

  • 发表日期：

    2025年5月14日

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  • Abdelmoula Mouloudi,
  • El Mostafa Mili,
  • Brahim Ait Said,
  • Radouan Mehdaoui,
  • Abdelhak Sadiki Amari

摘要

Developing a comprehensive understanding of reservoir architecture relies heavily on three-dimensional geological and hydrostratigraphic modeling. This study introduces the first 3D geological and hydrostratigraphic model of the Agourai Plateau, developed through the integration of diverse datasets, including borehole logs, geophysical surveys, geological maps, and structural network analyses. The model delineates the boundaries of geological formations to unravel the region’s complex geological framework. In which the integration of piezometric data into the solid model represents an improved approach compared to the conventional solid geological model. This integration enabled the generation of a detailed piezometric map that captures the inherent complexity of the karst system and facilitated the creation of high-resolution hydraulic cross-sections. The construction of the model was carried out using the Groundwater Modeling System (GMS) software, recognized for its advanced capabilities in three-dimensional subsurface modeling. This comprehensive model provides a refined visualization of the spatial distribution and variability of geological units, enabling a robust assessment of the aquifer’s storage capacity. The Agourai Plateau was classified into eight distinct geological units, starting with the foundational basement rock and extending to the overlying layers constituting the aquifer system. The total storage volume of the karst aquifer was estimated at 36.3 × 10⁹ m³, highlighting its significance as a regional water resource. Moreover, the model sheds light on spatial heterogeneities between geological units and elucidates the structural framework, including the distribution of major faults that critically influence aquifer dynamics. A comprehensive analysis of subsurface flow patterns was also conducted, offering valuable insights into the status of abandoned quarries and their implications for groundwater resources. This integrative approach provides a robust scientific foundation for the sustainable management and protection of water resources in vulnerable karst environments.