The auriferous cherts have the geological characteristics of sedimentation;the REE, Si and O isotopes of the cherts are unanimous with hot-water sedimentary cherts.

• 含金硅质岩具有沉积作用形成的地质特征，其稀土元素、氧、硅同位素地球化学特征与热水沉积作用形成的硅质岩一致；