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新疆东准噶尔松喀尔苏铜金矿区是卡拉麦里石炭纪陆相火山岩带新发现的斑岩型铜金矿床。为确定其成矿时代,对矿区与成矿有关的绢英岩化蚀变花岗斑岩中绢云母进行40 Ar-39 Ar测年研究,获得绢云母坪年龄和等时线年龄分别为338.6 Ma±2.2 Ma和341.5Ma±3.9Ma,坪年龄代表成矿年龄。测试结果表明,松喀尔苏铜金矿区成矿时代为早石炭世。该成矿年龄对于进一步认识矿床成因、地球动力学背景以及与准噶尔地区斑岩型矿床对比研究具有重要意义。
The East Jungar Songkhla copper-gold deposit in Xinjiang is a new type of porphyry copper-gold deposit discovered in the Carboniferous continental volcanic belt in Karamiri. In order to confirm its metallogenic age, the 40Ar-39Ar dating of sericite-hosted alteration granite porphyry associated with ore-forming in the mining area was studied, and the age of sericite plateau and isochron age were 338.6 Ma ± 2.2 Ma and 341.5Ma ± 3.9Ma, Ping age represents the mineralization age. The test results show that the Songkor Su-Cu-Au mineralization area was Early Carboniferous. The metallogenic age is of great significance for the further understanding of the genesis of the deposit, the geodynamic background and the comparison with the porphyry deposits in Junggar.