Geologecal features and mineralization of Shijinpo gold deposit in Gansu Province

Shijinpo Gold Mine exists in a composite garanite body of Shijinpo and is obviously controlled by faults of a EW strike.It has the alteration characteristics of strong sericitization,carbonation,silicifichtion and pyritation.The three elements of rock body,tectonic structure and hydrothermal control have led to the enrichment and mineralization.According to the geological features of deposit' occurrence,mineralization and the combination characteristics of metal minerals,this gold deposit belongs to the type of gold-containing quarts vein.It is a gold deposit of the middle temperature-hydrothermal type and its mineralization occurred during the middle-late hercynian.