Volcanic rocks from Amensif-Tnirt district in the Western High Atlas (Morocco): Geochemistry, magma features and new age dating

Evolution of Ore-Forming Fluids at Azegour Mo-Cu-W Skarn Deposit, Western High Atlas, Morocco: Evidence from Mineral Chemistry and Fluid Inclusions

“…Metals could also originate from these rocks, serving as additional potential sources. These conclusions are in agreement with the findings of references [34,37,[42][43][44][45]. The Mo, Cu, and W deposit at Azegour in the Western High Atlas range exhibits numerous similarities with skarn deposits in Morocco (Central Morcocco and Jebilet region); they are all spatially associated with the emplacement of post-tectonic granites with ages ranging from 340 to 270 million years [87].…”

“…The middle Cambrian is essentially composed of sandstone and pelite formations [39,48] (Figure 2). This lithostratigraphic succession is very similar to that of the nearby mining areas of Amensif, where similar hydrothermal transformations to those of Azegour were described [44,55]. The paleozoic series of Azegour records two Hercynian deformation phases [56].…”

“…The magmatic activity of Azegour is linked to its volcanic arc context, and previously to the Cambrian extension. According to [34], this magmatic activity is a continental intra-plate tholeiite, as widely described in the lower Moroccan Cambrian [44,[48][49][50][51][52]. During the magmatism of late Hercynian orogeny, small plutons of granite, granodiorite, including the intrusive rocks of Azegour, and other felsic rocks were formed.…”

“…In the Hercynian Jebilet region, this category is represented by the Sidi Bou Othmane skarns [27][28][29][30][31]. Finally, in the Western High Atlas, the pyrometasomatic deposit at Azegour for W-Cu-Mo [32][33][34][35][36][37][38][39][40][41] and the Amensif polymetallic Cu-Pb-Zn skarn deposit [42][43][44] can be found.…”