THe late Archaean greenstone belt in the Zhifang area has the characteristic ductile shear zone with a mylonite zone in its centre where occurs a gold mineralization zone(containing low grade gold ore bodies)of metamorphic hydrothermal type.
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- 泰安纸房地区太古代晚期绿岩带具有韧性剪切带的特征,在其中心部位为糜棱岩带,产有几公里长的太古代绿岩带变质热液型金矿化带(含低品位金矿体)。