The ratios of Fe/Ti, (Fe+Mn)/Ti, Al/(Al+Fe+Mn) and U/Th, and Al Fe Mn and Fe Mn (Ni+Co+Cu) diagrams show that the siliceous rocks are the sedimentary rocks of hydrothermal origin.

 
  • Fe/Ti、(Fe+Mn)/Ti、Al/(Al+Fe+Mn)、U/Th比值及Al?Fe?Mn、Fe?Mn?(Ni+Co+Cu)三角图均表明岩石为热水来源沉积岩。
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