As part of the optimization of mineral resource exploitation, BUT Géologie has conducted a comprehensive geological and geochemical reconnaissance study, combined with a reserve evaluation based on rock quality, within the eastern exploitable sector of the Djebel Fériana industrial limestone quarry, operated by SOTACIB Fériana (Fériana delegation – Kasserine Governorate).
This study follows an integrated approach aimed at enhancing the understanding of the deposit, optimizing mining methods, and ensuring sustainable resource management.
A Rigorous and Integrated Scientific Approach
The work carried out covered several complementary components:
- Assessment of the current quarry status, providing an accurate diagnosis of operating conditions and the geological characteristics of the site;
- Detailed geological characterization of the eastern exploitable sector, through the development of lithostratigraphic logs and spatial correlations, in order to understand the lateral and vertical evolution of limestone formations. This phase was supported by 3D lithological modeling using GEOVIA SURPAC and Blender software;
- 3D geochemical characterization of the deposit, based in particular on the whiteness parameter (Beta index), a key criterion for limestone valorization, performed using GEOVIA SURPAC software;
- Interpretation and validation of models, including the cross-analysis of geochemical results with the lithological model to ensure data consistency and reliability;
- Definition of a mining and development scheme, including the proposal of appropriate extraction methods, the preparation of master plans in compliance with environmental standards, and the production of Digital Terrain Models (DTMs) illustrating the different phases of mining and site rehabilitation;
- Estimation of geological reserves, including a quantitative assessment of available resources and their classification according to rock quality within the exploitable area;
- Proposal of a raw material blending strategy, aimed at optimizing reserve valorization in line with industrial requirements.
Towards Optimized and Sustainable Mining Operations
The primary objective of this study is to provide a reliable decision-support tool for the planning and optimized management of quarry operations. It adopts both a preventive and corrective approach, enabling the anticipation of technical constraints and improving resource valorization.
In this context, operational recommendations have been developed to support the operator in the development of future exploitable zones within the eastern sector, while ensuring sustainable reserve management and compliance with environmental requirements throughout the project lifecycle.
