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Copper mineral data of Iran
Copper Mineral Inrformation of Iran
      Meydouk Mine
      Sarcheshmeh Mine
      ..................
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بعديآخرين
Copper Mineral Data
   Meydouk Mine:
   General Geology:
   Lachah Mountain consists of volcaniclastic sediments and cut by diorite porphyry bodies and dykes. Weathering changes the primitive feature of the rocks, which cannot be identified. To 300m depth drilling distinguished hypogene zone and its silicification. Oldest porphyry rocks are the first source of mineralization that are recognized with A and B type fractures and intensive potassic and sodic alteration plus occurrence of pyrite and chalcopyrite (Costafon and Hant 1975). Bornite is rare in the body and no pyrrhotite was identified.
  

False color image of alteration zone in Meydouk, Sara in shown by pink color at the top of picture.

False color image of Meydouk.
    Second intrusions are porphyry dykes which are distinguishable by their less fractures and alteration. These rocks cut quartz veins and their pyrite content is higher than chalcopyrite. Third type of rocks is diorite porphyry that extent as N-S trending dykes under the propylitic hallows. These dykes have coarser phenocrysts than other parts.
   Some basic dykes with olivine-hornblende basalt composition were intruded in mineral rocks after hydrothermal activities and have no relation to porphyry mineralization. Geochronology of copper mineralized body of Meydouk using K/Ar method shows that against the Yugoslavians (1971) idea about Pliocene mineralization of deposit, Meydouk mineralization is middle to upper Miocene in age, very close to the age of Sarcheshmeh Mine. Mineralization of Sara is younger than these two.
  
 
 
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