Different from Bolivia Sn-B type, theYanbei porphyry tin depossits are of Sn-F type. This is an important feature of tin deposits in theCaledonian fold belt of South China.

• 不同于玻利维亚Sn－B型，本区为Sn－F型，这是华南加里东褶皱带斑岩锡矿的重要特征之一。