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Jbel Aouam (Djebel Aouam; Jebel Awam), M'Rirt, Khénifra Province, Béni Mellal-Khénifra Region, Morocco

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Latitude & Longitude (WGS84): 33° 9' 38'' North , 5° 37' 46'' West
Latitude & Longitude (decimal): 33.16083,-5.62972
GeoHash:G#: evguxusxc
Area:25 km2
Other regions containing this locality:Atlas Mountains, North Africa
Northwest Africa Meteorites
Köppen climate type:Csa : Hot-summer Mediterranean climate
Name(s) in local language(s):Jbel Aouam (Djebel Aouam, Jebel Awam)
Other/historical names associated with this locality:Tighza Mine


Active lead-zinc-silver deposit. Located in the Atlas Mts., between Azrou and Khénifra.

Mineralized veins located within an elliptic zone of contact metamorphism (skarns) around three Stephanian granitic stocks.
These granites intrude Upper Ordovician to Visean sedimentary formations.
Three types of veins (Post-Visean open faulting) mineralizations are known:

- W-mineralization (290-280Ma), with two stages : 1st stage with scheelite, löllingite, gold, wolframite, biotite, apatite, alkaline feldspars, quartz (2 generations : one with scheelite-wolframite, one with scheelite-molybdenite), calcite, muscovite, chlorite and molybdenite; 2nd stage with scheelite, quartz, muscovite, chlorite, calcite, arsenopyrite, pyrrhotite, pyrite and chalcopyrite
- Pb/Zn-mineralization (circa 255+/-15Ma): with 4 major parageneses, the first with barren siderite, then siderite and quartz, galena, then ankerite-galena-sphalerite ; the latter with calcite, chalcedony, baryte, galena, sphalerite and pyrite
Five veins are currently being exploited : Signal vein, Ighrem Aousser vein, Sidi Ahmed vein, Iguer Oujna vein, Parallele vein.
- Sb-mineralization: independant from the first two ones, characterized by intense development of breccias; with stibnite, quartz, pyrite, chalcopyrite and baryte


Mineral List


32 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Carboniferous - Ordovician
298.9 - 485.4 Ma



ID: 3307591

Age: Paleozoic (298.9 - 485.4 Ma)

Lithology: Sedimentary

Reference: Thiéblemont, D. (ed.). New edition of the 1:10,000,000 geological map of Africa. CGMW-BRGM. [190]

Silurian
419.2 - 443.8 Ma



ID: 3151566
Silurian undifferentiated

Age: Silurian (419.2 - 443.8 Ma)

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Ordovician - Cambrian
443.8 - 541 Ma



ID: 3189451
Paleozoic sedimentary rocks

Age: Paleozoic (443.8 - 541 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
- Bull. Minéral., 1984, 107, pp. 255-272.
- Cheilletz, A., 1984. Contribution à la gîtologie du district polymétallique (W-Mo-Cu-Pb-Zn-Ag) du Djebel Aouam (Maroc Central). Thèse de l’institut national polytechnique de Lorraine.
- Nerci, K., 2006. Les minéralisations aurifères du district polymetallique de Tighza (Maroc Central) : un exemple de mise en place périgranitique tardi-hercynienne. Thèse de doctorat, Université du Québec à Montréal
- Tarrieu, L., 2014, Nouvelles données géologiques, géochimiques et géochronologiques sur le gisement polymétallique de Tighza-Jbel Aouam (Maroc Central), Thèse de doctorat, Université de Grenoble

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