METALLOGENIC REGULAR OF GOLD DEPOSIT IN XIAOBAN,FUJIAN,AND ITS VICINITY AND THEIR FURTHER EXPLORATION

With more than 20 gold deposits (or gold ore spots)and favorite oreforming conditions, Xiaoban and its vicinity are a concentric area of gold deposit in middle part of Fujian.The main metallogenic and ore-controlling factors for the gold deposit in the area are a favorite assemblage of metallogenic and ore-controlling structures, the metamorphic rocks of Proterozoic Mayuan Group and the itermidiateacid magmatic activity in the early Yanshanian;and all these are also the important prospecting criteria.The main kind of gold deposit is magmatic hydrotermal type, and the altered fractured rock type predominated in gold mineralization.The targets of further gold ore exploration in the area are as follows:Xiaoban, Longmenchang, Yangmei, Xuzhou, Lingtouping and Gekeng. Particularly more attention may be paid to the minor scale gold deposits or gold ore spots situated in volcanic depression and to altered fractured rock type gold deposits like Xiaoban-Shuangqishan in the Mayuan Group metamorphic rocks beneath the volcanic cover rock.