Azegour (Mo, Cu, W)
Maya has a 100% stake in the property and an exploitation permit. The mine, operated periodically since 1931, has been a significant producer of base metals.
The Azegour mine is located in the Occidental range of the High Atlas mountains, 60 kilometres southeast of Marrakech. It is 12 kilometres south of our Amizmiz property.
From Marrakech, a paved highway runs across the Haouz Plain to the town of Amizmiz from which a narrow paved road branches westward for eight kilometres to an intersection near the village of Azegour. The old mine entrance is located 400 metres north of the intersection on a dirt road (Figure 1).
The property consists of one exploitation permit (183208) that covers 16km².
The site was most intensively mined between 1931 and 1947. Historical documents report the processing of approximately 500,000 tonnes of ore during that time. The cut and fill method used at the mine yielded an average of 2,270 tonnes of ore per vertical metre over 200 metres of elevation. A 2006 historical resource estimate for molybdenum, copper, and uranium produced the values cited below:
* These resources are considered historical as per NI 43-101 standards of disclosure for mineral projects. A qualified person has not done sufficient work to classify the historical estimate as current mineral resources, the issuer is not treating the historical estimate as current mineral resources, and the historical estimate should not be relied upon.
Geological and Structural Framework
Azegour is a skarn deposit formed by the emplacement of the Hercynian Azegour monzogranitic pluton (273±2 Ma) into Lower Cambrian folded volcanic and sedimentary rocks (limestones and schists). Molybdenite (Mo), chalcopyrite (Cu) and scheelite (W) mineralization is located within the metamorphic aureole of the monzogranite and impregnated in calc-silicate rocks (Figure 2). The pluton presents two major facies:
- ● a fine-grained granite located on the border of the pluton or included as blocs in the second facies and
- ● a dominant facies composed of a coarse-grained homogeneous monzogranite.
The contact of the monzogranite with the Paleozoic volcanosedimentary rocks is extremely sharp. Several fractures are filled by small mafic to porphyry felsic dykes and hydrothermal veins.
Molybdenite, scheelite, chalcopyrite and accessory mineralization that contain uranium, nickel and cobalt are all located within the metamorphic aureole surrounding the Azegour pluton. The Mo-W-Cu mineralization is impregnated in calc-silicate rocks formed by grenatites and pyroxenites. It presents itself as irregular pods extending in a N-S direction. Molybdenite is associated with grossular-bearing hornfels (Figure 3), scheelite is present in phaneritic andradite- bearing grenatite (Figure 4) and chalcopyrite is found in pyroxene hornfelses (Figure 5).
1920 First investigation by les Sociétés des Mines de Béni-Aicha et d’Entifa
1931 First exploitation by the Société le Molybdène which produced over 200 tonnes of 85% molybdenite (MoS₂) concentrate
1946 – 1947 Historical reserves evaluated at 500,000 t at 0.2 % MoS₂
1950 Historical resources evaluated at 120,000 t at 0.20 % MoS₂ and 130,000 t at 0.20 % W0₃
1958 – 1970 Sporadic exploration for Mo and Cu. Exploration included 8,400 m of drifts and 4,000 m of drill core
1971 Shut down of the Azegour mine due to low commodities prices. Discovery of scheelite (CaWO4) and failed exploitation by the BRPM
1984 – 1990’s Mapping and rock sampling of the Azegour area by a Japanese mining consortium on behalf of the MEM
2003 – 2008 Mine exploration by Ouiselat Mines S.A. for W and Cu, underground and surface work at the Tizgui and Iszarifan sites, underground channel sampling, assays of 0.25, 0.27 and 0.57 wt. % MoS₂ obtained and three drill holes totaling 131 m.
2011 Maya Gold & Silver acquires 100% interest in the Azegour Mine and its related mining permit from Ouiselsat Mines S.A.