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The Representative Textures and Structures of the Seafloor Sulfide Black Smokers and Their Genetic Significance

NIU Xiang-long, LI Jiang-hai, FENG Jun   

  1. School of Earth and Space Sciences, Peking University, Beijing 100871, China
  • Received:2004-12-20 Revised:2004-12-20 Online:2004-12-20 Published:2004-12-20

Abstract: Zoning,conduit,colloform ,dendritic,metasomatic,porous and infilling textures and structures are representative for the seafloor sulfide chimneys.They record the forming process and evolution history of the seafloor chimneys.The formation of different chimneys is related not only to their locations, but also to their maturities.The diffuser is another important structure in the lower sulfide mound.Diffuser is the dominant mechanism of hydrothermal advection in the mound after extinction and collapse of the black smokers.Some relicts of the sulfide black smokers have been found in the continent(i.e.in Pilbala,South Ural,Ireland,Gaobanhe etc.It is shown that the massive sulfide deposits in continent might be formed by the black smoker models as on modern seafloor.