大地构造环境对世界主要类型银矿的控制作用

    THE MAIN TYPE SILVER DEPOSITS IN THE WORLD ARE UNDER THE CONTROL OF GEOTECTONIC ENVIRONMENTS

    • 摘要: 不同大地构造环境控制了不同类型的银矿床。火山弧和岛弧控制了浅成低温热液型和黑矿型银矿床。裂谷带的地垒之上产出有浅成低温热液银矿床、中深中温次火山热液银矿床、斑岩型银矿床和矽卡岩型银矿床。裂谷带的地堑之中产出有五元素矿床、碱性火山岩中的块状硫化物型银矿床、沉积岩中的块状硫化物型银矿床、砂岩型铜银矿床。

       

      Abstract: Different type of silver deposits is under the control of different geotectonic environments. The epithermal silver deposit and the Kuruko silver deposit are distributed over volcanic arcs and island arcs. The epithermal silverq deposit, the mesothermal silver deposit in middle depth, the porphyry silver deposit and the skarn silver deposit exist in the horst of rifts. The five element deposit, the massive sulfide silver deposit in the alkaline volcanic rocks, the massive sulfide silver deposit in the sedimentary rocks and the sandstone copper and silver deposit are located in the graben of rifts.

       

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