"Shear zone"@en . "Belkabir" . "Hydrothermal activity"@en . "Hydrothermal alteration"@en . . "Zunyite"@en . "Anti-Atlas Mountains"@en . "Morocco"@en . "Abdelhay" . "Abdelhay Belkabir" . "Massive sulphide"@en . "42088a0e6e5babea6bcae71e8064eaec" . "Diaspore"@en . "Draa Sfar"@en . "Hercynian"@en . . "Pyrophyllite"@en .