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辽北—吉南地区出露有两种类型绿岩带。清原型绿岩带的原岩建造为连续分异的火山—沉积岩系组成, 主要由下部拉斑玄武岩、少量钙碱性玄武岩和中上部的钙碱系列安山岩—英安岩—流纹岩和沉积岩所构成, 其形成的古构造环境为类似于现代岛弧的大陆边缘活动带。其中赋存有丰富的块状硫化物矿床, 其次为铁矿和金矿。夹皮沟型绿岩带的原岩建造为相对分异的火山—沉积岩组合, 主要由下部的拉斑玄武岩、少量钙碱性玄武岩和中上部的长英质火山岩和沉积岩所组成, 其形成的古构造环境为大陆边缘裂谷或弧后盆地型火山—沉积盆地, 其中赋存有丰富的金矿、铁矿。绿岩带主要遭受了低角闪岩相区域变质作用 (560℃±60℃, 04~059 G Pa), 其形成时代为2500~2900 Ma。绿岩带有关金矿具 “一老 (新太古代—古元古代) 一新 (中生代)”的成矿规律。
There are two types of greenstone belt exposed in northern Liaoning and southern Jiunan. The original rocks of the Qingyuan greenstone belt are composed of continuously differentiated volcanic-sedimentary rocks, which are mainly composed of lower tholeiite basalts, a small amount of calc-alkaline basalts and middle-upper calc-alkali series andesite-dacite-rhyolite and sedimentary rocks Formed, the formation of the ancient tectonic environment is similar to the modern island arc continental margin belt. Among them, there are abundant massive sulfide deposits, followed by iron ore and gold ore. The protoliths of the Jiapigou type greenstone belts are constructed as relatively distinct volcanic-sedimentary assemblages consisting mainly of the lower tholeiite basalts, a small amount of calc-alkaline basalts and the mid-upper quartzite volcanic rocks and sedimentary rocks, Paleo-tectonic setting is continental margin rift or back-arc basin-type volcano-sedimentary basin, in which there are abundant gold and iron ore deposits. The greenstone belts mainly met the metamorphism (560 ℃ ± 60 ℃, 04 ~ 059 G Pa) in the low-amphibolite facies, and the formation time is 2500 ~ 2900 Ma. Greenstone belt related to gold mineralization “an old (New Archean - paleohigh ancient) a new (Mesozoic)” metallogenic regularity.