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The Devonian outcrops of the Azrou-Khenifra Basin are located in the eastern band of the Moroccan Central Massif. They are characterized by a high geodiversity since they show sedimentary, stratigraphic, paleontological, tectonic and geomorphological aspects. Those outcrops allow the understanding of the evolution and geodynamic of the area during the Devonian. This proves their relevant in term of scientific value. In addition, they also have educational and touristic interests. The objectives of this work are making the inventory and quantitative assessment as well as the mapping of nine Devonian geosites. To approach the topic, the method proposed by Brilha (2016) have been used which based on qualitative and quantitative criteria. The results show that the geosite Famennian zebra griottes limestones of Ziyar has the highest scientific value (345) while the others are characterized by scientific, educational and tourist values ranging from moderate to high. Regarding the degradation risk, the geosites have a low value. This work could be considered as the base of any geoconservation strategy and geotourism action plan in the area since it focused on the two first steps of it. This may help improve the sustainable development through the establishment of geopark consequently and enhance economical level of people living the Azrou-Khenifra area.

Artisanal gold mining in Chami is an important lever in the country economy, owing to the benefits it brings, but it is also likely to have a negative impact on various environmental compartments. Contamination of surface and ground water by trace metals elements (ETMs) was studied in the vicinity of the Chami gold processing center. The aim of the study was to assess the water contamination by trace metals (ETMs) in the town of Chami. Nine water samples (process and boreholes) were analyzed for (Co, Cr, Cu, Ni, Pb, Zn and Hg). The analysis was carried out by the DMA 80 technique for Hg at the ONISPA laboratory in Nouakchott and the other ETM at the Kenitra geosciences laboratory by the ICP-MS technique. The results of the analyses show that the ETM concentrations are high in process water samples and low in drilling water samples. Pollution indices and coefficients of variation indicate no contamination or anthropogenic traces in the borehole samples, but high levels of Hg and Ni in the process water. These results show the accumulation of metals in significant quantities in the process waters, especially Hg, proving that the waters of the mining waste basins at the Chami processing site are becoming sources of environmental pollution by mercury, which can be released into the environment by several pathways.