| “镜铁山式”铁铜矿床地质特征及其成因探讨 |
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| 引用本文：.1998.Geological characteristics and genesis of the Jingtieshan type iron-copper deposits[J].Mineral Deposits,17(1):25~35 |
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| 中文摘要:探讨了镜铁山桦树沟矿区铁铜矿床成矿地质背景和成岩成矿的演化过程，阐述控制铁铜矿带往水平和垂向分带变化的地质特征。根据线性构造与火山喷发沉积关系，着重探讨“镜铁山式”铁铜矿床的成因机制，并运用δ34Si、δ18O、δ13C测试成果，确立含铁铜硅质岩建造，建立上铁下铜结构分带。认为该类型矿床是与海相火山作用有关的喷气沉积成因矿床，具有与块状硫化物矿床共生，组成铁-铜-硫矿床系列双层成矿结构模式。 |
| 中文关键词:镜铁山式铁铜矿床 硅铁铜建造 矿床分带 火山-沉积环境 喷气-沉积成因 |
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| Geological characteristics and genesis of the Jingtieshan type iron-copper deposits |
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| Abstract:The present paper recounts the achievements made in the performance of a major exploration project assigned by the State Planning Commission. The authors have probed into the metallogenic geological setting as well as rock-forming and ore-forming evolutionary process of the Huashugou mining area in Jingtieshan, a typical example of the Jingtieshan type iron-copper deposits, and expounded geological characteristics that control horizontal and vertical zonal variation of the iron-copper ore belt. Based on the relationship between the lineament and the volcanic eruption-sedimentation, the authors have dealt emphatically with the genetic mechanism of the Jingtieshan type iron-copper deposits; using δ34Si,δl8O and δ13C analytical results, they have also confirmed the iron-, copper-bearing silicalite formation and established a structural zoning characterized by iron in the upper part and copper in the lower part. It is considered that ore deposits of this type are exhalative-sedimentary deposits related to marine volcanism which possess the two-layer metallogenic structural model together with massive sulfide deposits and make up an iron-copper-sulfur deposit series. |
| keywords:Jingtieshan type iron-copper deposits, Si-Fe-Cu formation, zoning of ore deposit, volcano-sedimentary environment, exhalation-sedimentary origin |
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