Abstract:Scientific deep drilling named ZK01 of Zhuanqiao lies in the centre of Luzong, and can be divided into 4 part including the Quaternary gravels (0~17 m), volcanic sedimentary at Zhuanqiao Formation (17~1488 m), syenite (1488~1848 m) and monzonite (1848~2011.95 m). Deep drilling named ZK01 conducted in Zhuanqiao of Luzong basin was discovered deep rocks syenite and monzonite associated with a large amount of uranium and thorium mineralization (1500~1900 m) while in the shallow, trachyandesites and diorite prophyry associated with magnetite and pyrite mineralization (0~1470 m). According to the alteration and mineralization assemblage, mineralization can be divided into five stages, anhydrite tourmaline veins at stageⅠ, uranium thorium mineralization at stageⅡ, magnetite mineralization at stage Ⅲ, sulfide secondary quartze at stage Ⅳ and quartz calcite sulfide at stage Ⅴ. Three types of fluid inclusions including liquid rich (Ⅰ), gas rich (Ⅱ) and daughter mineral bearing (Ⅲ) fluid inclusions, respectively, have been observed. The daughter minerals mainly include halite and sylvite. The fluid inclusions of stage Ⅰ are characterized by high temperatures (540~560℃ at peak) and low to high salinity 65%~70% NaCl eq and 0%~5% NaCl eq at peak). The fluid inclusions of stage Ⅱ exhibit medium to high temperatures (320~340℃ at peak) and low to high salinity (0%~5% NaCl eq at peak). The fluid inclusions of stage Ⅲ have medium temperatures (380~400℃ at peak) and medium to high salinity (0~5% NaCl eq at peak). The fluid inclusions of stage Ⅳ have medium temperatures (240~260℃ at peak) and medium to high salinity (0%~5% NaCl eq at peak). The fluid inclusions of stage Ⅴ have medium temperatures (160~180℃ at peak) and medium to high salinity (0%~5% NaCl eq at peak). Fluid properties in deep drilling, are similar to other deposits in Luzong basin. It indicates that metallogenic fluid act as a part of the fluid in Luzong basin mineralization system. Boiling are occurred in fluid evolution repeatedly, which cause the change of physical and chemical state that change may be one of the major factors leading to migration and mineral precipitation.