Table 7.
Comparison between Hamash deposits and other Egyptian orogenic deposits.
| Deposit | Host rocks | Mineralization style | Alteration assemblage | Ore minerals |
|---|---|---|---|---|
| Hamash (The present study and Ref.15) | Granite; diorite, quartz veins | Shear zone vein arrays | Epidote, chlorite, kaolinite, hematite, sericite, quartz | Gold, pyrite, chalcopyrite |
| Hangalia area118 | Granite | Shear zone vein arrays | Sericite-kaolinite | Gold, pyrite, chalcopyrite, galena, arsenopyrite, sphalerite |
| Sukkari96 | Granodiorite; schist | Shear zone vein arrays | Bersite-listvenite | Gold, pyrite, arsenopyrite, sphalerite, chalcopyrite, galena |
| Samut62 | Granodiorite; schist; mafic volcanics | Quartz veins enclosed in shear zones of pinch and swell structure | Epidote-chlorite- listvenite | Gold, pyrite, arsenopyrite, chalcopyrite |
| El-Eradia114 | Tonalite–granodiorite association | Shear zone vein arrays | Quartz, sericite, chlorite, carbonate, hematite | Gold, pyrite |
| Dungash119 | Metavolcanic and metapyroclastic rocks | Shear zone vein arrays | Sericite, carbonate, listvenite | Gold, pyrite, arsenopyrite, chalcopyrite, pyrrhotite, sphalerite |
| Haimur110 | Metabasalt; schist | Quartz veins enclosed in brittle–ductile shear zone | Sericite, carbonate, quartz | Gold, pyrite, chalcopyrite |
| Umm Garaiart112 | Metaandestic tuffs | Steeply dipping veins | Sericite, carbonate, quartz | Gold, pyrite, chalcopyrite |
| Marahib113 | Metaandesite | Quartz veins in brittle– ductile shear zone | Carbonate, quartz | Gold, pyrite |
| Hariari111 | Diorite | Quartz veins in brittle– ductile shear zone | Sericite, carbonate | Gold, pyrite |
| Atalla115 | Schist, granodiorite | Quartz veins filling NE–SW pre-existing fractures | Carbonate, quartz | Gold/electrum, pyrite, arsenopyrite, pyrrhotite, sphalerite, chalcopyrite, galena, covellite |
| Um El Tuyor7 | Metasediments, metabasalt, tonalite–granodiorite | Quartz and quartz carbonate veins, lenses, and veinlets trending NNW to NW | Sericite, carbonate, quartz, chlorite | Gold, arsenopyrite, pyrite, chalcopyrite, pyrrhotite, sphalerite, galena, marcasite, digenite |
| El Sid116 | Ophiolite mélange, granite | Quartz (carbonate) veins trending in ENE–WSW fault/shear zone | Carbonate, quartz | Gold/electrum, pyrite, arsenopyrite, galena, sphalerite, pyrrhotite, chalcopyrite |
| Barramiya117 | Listvenite, metasediments, quartz diorite/granodiorite | Quartz and quartz-carbonate veins associated with E–W shear zones | Sericite, carbonate, quartz | Gold, arsenopyrite, pyrite, chalcopyrite, sphalerite, tetrahedrite, pyrrhotite, galena, gersdorffite |