Geological Characteristics of Tungsten-tin Deposits and the Indication of Mantle Material Participating the Tungsten-tin Mineralization in Guposhan Region, Guangxi

Tungsten-tin deposits in Guposhan region is located in the southwest edge of Nanling metallogenic belt where is an important tungsten-tin producing area.There are three tungsten-tin ore fields:Xinlu,Shuiyanba,and Shanhu.the deposits are numerous in genetic type,of which the typical ones are tin-zincsul fide type,quartz veined tungsten type,and tungsten-tin quartz vein type.The researchers have done lots of researches on the diagenesis and mineralization in this region and believe that the W-Sn mineralization has a close relation with the fracture and the crust-mantle mixed granite in Guposhan region.