| 胶东新类型金矿——辽上黄铁矿碳酸盐脉型金矿 |
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| 引用本文：李国华,丁正江,宋明春,李俊建,李秀章,纪攀,张丕建,王志新.2017.胶东新类型金矿——辽上黄铁矿碳酸盐脉型金矿[J].地球学报,38(3):423-429. |
| DOI：10.3975/cagsb.2017.03.12 |
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| 基金项目:山东省泰山学者特聘专家工程项目(编号: ts201511076);山东省地矿局科技攻关项目(编号: KY201203; KY201603) |
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| 中文摘要:辽上矿区深部金矿勘查取得大的突破, 分析矿体产出规律及矿石特征, 发现为新类型金矿——“辽上式”金矿, 即受构造控制的黄铁矿碳酸盐脉型金矿。矿体赋存于北东向破碎蚀变带中, 具厚度大、品位高的特点。容矿围岩为古元古代荆山群变质岩及中生代花岗岩, 受构造影响破碎, 发生强交代蚀变, 黄铁矿和碳酸盐矿物为含金载体, 呈细脉、微细脉沿张裂隙充填成矿。该类型的提出, 对在胶东东部地区金矿找矿具有重要指导作用。 |
| 中文关键词:胶莱盆地东北缘 辽上式 金矿 黄铁矿碳酸盐脉 胶东 |
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| The Liaoshang Pyrite-carbonate Veined Deposit:A New Type of Gold Deposit in Jiaodong Peninsula |
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| Abstract:Gold exploration work in the deep Liaoshang area has achieved great breakthrough. By analyzing the orebody formation regularity and the ore characteristics, the Liaoshang type deposit, a new type of gold deposit, i.e., the tectonic-controlled pyrite-carbonate veined gold deposit, was discovered in this area. Hosted in the NE-trending shattered altered-rock zone, the orebodies are characterized by large thickness and high grade. The host rocks i.e., granites of the Paleoproterozoic Jingshan Group and the Mesozoic granites, experienced intense metasomatic alteration resulting from the tectonic-activity-led fracturing. The pyrite and carbonate minerals are the gold-bearing carriers which have filled and mineralized the tension fissures as veins or micro veins. The definition of the new type of deposit will be benefitial to gold exploration in east Jiaodong Peninsula. |
| keywords:northeastern edge of the Jiaolai Basin Liaoshang type gold deposit pyrite-carbonate veins Jiaodong Peninsula |
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