Research Information System
12th Biennial SGA Meeting on Mineral Deposit Research for a High-Tech World, Uppsala, Sweden, 12 - 15 August 2013, pp.805-808
The Karakartal deposit, is located in the eastern part of central Anatolia, is related to multi-phase porphyritic intrusive rocks intruding Jurassic-Cretaceous Munzur limestones and Early Eocene Subasi formation. The deposit is characterized by a central potassic alteration zone that grades into propilitic alteration towards the outer zones. The central zone is generally overprinted by a chlorite-sericite alteration. Veins identified within the potassic alteration zone include Type 1 (quartz+magnetite+ chalcopyrite)-, Type 2 (quartz + chalcopyrite)- and Type 3 (K'feldspar +quartz+ pyrite+chalcopyrite +molybdenite) veins. In addition to these, Type 4 (chlorite+quartz+chalcopyrite +pyrite) veins occur in chlorite-sericite alteration zone. Both primary and secondary biotites have similar and re-equilibrated compositions and yield formation temperatures of 485-840 degrees C according to Ti+4 contents. Chlorites are mainly pynochlorite and ripidolite in composition, and are calculated to have formed at 216-432 degrees C based on the Fe# and Al+4 contents. Fluid inclusion homogenization temperatures obtained from the chlorite-sericite-, potassic- and early potassic alteration-related quartz veins are 200-330, 340-635 and 750-850 degrees C respectively and have salinities up to well over 80 wt% NaCl equivalent.