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伊犁东光金铜矿,位于西天山伊什基里克石炭—二叠纪裂谷带,矿床产于下石炭统大哈拉军山组火山岩中,直接赋矿岩石主要为凝灰岩、角砾凝灰岩和安山岩。矿体多呈脉状产出,走向及倾向变化较大。主要矿石矿物为黄铁矿和黄铜矿,金主要赋存于黄铁矿中。矿石结构以半自形—他形粒状结构、交代结构、胶状—变胶状结构为主,浸染状和角砾状构造发育。矿化蚀变较为发育,主要为孔雀石化、黄铁矿化、碳酸盐化、黄铜矿化、磁铁矿化、褐铁矿化和硅化。与阿希金矿在赋矿地层、矿体产状、矿石结构构造以及矿石矿物组合等方面具有较为相似的特征,属浅成低温热液型金铜矿床。
The Dongguang gold-copper mine in Ili is located in the Ishikilike Carboniferous-Permian rift zone in the Western Tianshan Mountains. The ore deposit is found in the volcanic rocks of the Lower Halajianshan Formation in the Lower Carboniferous. The directly-burial rocks are tuff, breccia tuff And Andesite. Most of the ore body is vein-shaped, and its trend and tendency change greatly. The main ore minerals are pyrite and chalcopyrite, which mainly occur in pyrite. Ore structure to semi-self-shaped - He-shaped granular structure, structure of the exchange, gelatinous - gummy-like structure, disseminated and brecciated structure development. Mineralization alteration is more developed, mainly for the malachite, pyrite, carbonate, chalcopyrite, magnetite mineralization, limonite mineralization and silicification. It has the similar characteristics with the Ashi gold deposit in ore-dressing strata, ore-body shape, ore structure structure and ore mineral assemblage, and belongs to epithermal gold-copper deposit.