The Deep Drilling Pprogram, namely SinoProbe-03-06, was implemented at Zhuanqiao, Lujiang City, Anhui Province, where thorium and uranium anomalies were found, which might indicate a high temperature mineralization style of uranium deposit in the depth of the basin. Abundant tourmaline-group minerals were found in the core, which could be classified into at least three types. The minerals exhibit some general features: ① sector and oscillatory chemical zoning of crystals; ② formation in high temperature; ③ Fe-Al, Fe-Mg coupled substitution; ④ high Mg content and evolution of varieties from Al-rich to Fe³⁺-rich through Fe-Al coupled substitution caused by the increase of f_O2. Tourmalines usually occur in high-temperature hydrothermal deposits and can be taken as efficient indicators for both prospecting and exploration of these important mineral deposits. The study indicates that the f_O2 of the fluids was rising and the fluids carried plenty of volatile materials such as F, B and H₂O with the evolution of the tourmaline, which provided a favorable environment for the formation of U⁶⁺ and the migration of some useful elements. These data also present some constraints on features of the fluids in the deep basin.