Tin deposits in central Nanling region are mainly altered type,porphyry type,greisentype,hydrothermal vein type,hydrothermal metasomatic type and contact metasomatic type.

• 南岭中段锡矿床的成因类型主要有五种:蚀变花岗岩型、斑岩型、云英岩型、热液充填型、热液交代型和接触交代型。