Geological Characteristics and Ore Prospect in Chaijiazhuang Gold Mine,Tianshui,Gansu Province

The Chaijiazhuang gold mine is tectonically located in the Chaijiazhuang-Pangjiahe gold mineralization belt,belonging to the North Qinling Caledonian fold belt of West Qinling orogenic belt. The gold deposit occurs in the Danfeng Group of the exocontact zone of the Chaijiazhuang adamellite. The deposit was mainly controlled by the NE and NNW faults. The formation of the deposit are also governed by the Danfeng Grorp and the acid intrusion of Indosinian-Yanshan .The stargets for gold prospect is within 0~2 km along the NE and NNW faults in the exocontact zone of the adamellite where NE and NNW faults well-developed.Based on studies of ore deposit geology and geochemical features,ore-controll factors and prospecting criteria for gold in the region are discussed.