Circular structures have increasingly attracted attention as an intriguing subject for research in Algeria. Studies have examined these features from various perspectives (Lamali et al., 2016, 2022; Hassani et al., 2016, 2024; Sahoui, 2024; Chabou, 2024) since their occurrence often indicates hypervelocity impact events (Lambert et al., 1981) or su...
This study, performed during the ORCHYD European project, devoted to drilling deep geothermal boreholes, has many potential applications to mechanical studies. It gathers geological descriptions of three outcropping granites from Scandinavia (Kuru Grey and Red Bohus) and from the South of France (Sidobre). Microstructural investigations include opt...
Une évaluation du potentiel de stockage géologique du CO2 en France métropolitaine a été commanditée par la Direction Générale de l’Énergie et du Climat (DGEC) et financée par l’ADEME. Cette étude EVASTOCO2 constitue le premier inventaire harmonisé des « ressources » de stockage de CO2 et servira de référence pour la recherche de sites de stockage ...
Reservoir simulation is crucial in understanding and predicting the behavior of subsurface reservoirs, aiding in efficient resource management. By modeling fluid flow, pressure changes, and other dynamic processes, it provides valuable insights for optimizing development strategies. This helps in making informed decisions, minimizing risks, and max...
This study is based on the coupling of geological field data with geophysical studies in the geological mapping of the Central Domain of the Mbere Division (Adamawa-Cameroon). The first step was to calculate the residual grid associated with the geophysical data that will be used for the mapping of the basement. The second step before mapping consi...
La région Île-de-France bénéficie d'un contexte géologique favorable à la géothermie profonde basse énergie pour augmenter la part des énergies bas carbone dans la production de chaleur. Le réservoir du Jurassique moyen étant très sollicité, l'aquifère des sables de l'Albien, situé à environ 650 mètres de profondeur avec des températures de 28 à 38...
Luminescence imaging and spectroscopy have become essential in gem testing, as most gem minerals and materials exhibit specific luminescence when properly excited. With a range of techniques introduced in gem testing laboratories in the past quarter century, such as luminescence imaging and photoluminescence (PL) emission and excitation spectroscop...
The Pouni region of Burkina Faso is characterised by its Palaeo-Proterozoic formations and Birimian terrains. In contemporary geological studies, the integration of advanced technologies is becoming crucial to improving the accuracy and efficiency of mapping. This article presents an analysis of the Pouni area using remote sensing and Geographic In...
The ADEME agency, in collaboration with the Île-de-France Region and the BRGM, initiated an exploration campaign of the deep geothermal resources in the west and south of Paris. Launched in December 2023, this program, called Geoscan Ile de France, aims at improving the knowledge of the subsurface in the survey area. It will set a favorable framewo...
The aim of this paper is to discuss the efficiency of a new methodology to maintain the accuracy of numerical solutions obtained from our landscape evolution model (LEM). As in every LEM, the tricky part is the coupling between water and sediment flows that drives the nonlinear self-amplification mechanisms. But this coupling is also responsible fo...
