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出 处:《吉林地质》2013年第1期36-39,共4页Jilin Geology
摘 要:桦甸市夹皮沟金矿区八家子金矿,产于太古界夹皮沟群下部四道砬河组的变质岩系与岩体的接触部位,岩体为一套基性-中性-酸性火山岩。矿体受构造控制,具有一定的成矿规律。夹皮沟群的下部岩组,由斜长角闪岩、变质安山岩、混合片麻岩夹绢云石英片岩、磁铁石英岩组成。该组是我省最大的金矿产出层位,控制着夹皮沟—板庙子等一系列大中型变质热液型金矿床的分布。Bajiazi gold ore in Jiapigou gold mining area,Huadian City,is originated in the contact part of metamorphic rocks and rock mass,which in the Sidaolahe Formation in the bottom of the Archaeozoic Jiapigou Group,rock bodies are a set of basic-neutral-acidic volcano rock.Ore bodies are controlled by tectonic,with metallogenic regularities.The bottom petrofabric of Jiapigou Group,were formed by amphibolite,metamorphic andesite,amphogneiss mixed sericite quartz schist,and magnetite quartzite.The group is one of the largest gold mine occurence horizon.It controlled the distribution of a series of large and medium-sized metamorphic hydrothermal type gold deposits,such as Jiapigou-Bansimiao etc.
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