Abstract:
The Furong tin district, Hunan, is a new tin district that has been found in recent years and is now under exploration. Tin ores in this district occur inside a large granite mass and it has great ore potential, so it has attracted great interest among people. Preliminary field survey, combined with indoor work, suggests that the Furong tin deposit and its related magmatic rocks are unique in many aspects; for example, it occurs inside a rock mass; different types of mineralization, such as disseminated cassiterite, cassiterite-sulfide and cassiterite-magnetite type mineralizations, occur simultaneously in altered granitoids; chloritization is well developed and different types of tin mineralizations correspond with different compositions of chlorite; granitoids are characterized by lower SiO2 and higher Sr. This paper mainly discusses mineralization and some geochemical anomalies of the mineralised granite mass and advances the suggestion of looking for copper at depths.