The Lu-Zhong Mining District, situated within the Middle-Lower Yangtze River Metallogenic Belt, is significant for its polymetallic and granitic-hosted uranium deposits. This study presents the first discovery of high-temperature uranium mineralization through scientific deep drilling in the district. Utilizing shortwave to thermal infrared (SWIR-TIR) spectroscopy, X-ray fluorescence (XRF) elemental analysis, and electron microprobe techniques, we systematically analyzed the mineral distribution, ferromagnesian mineral variations using the FMI, and the spectroscopic and compositional characteristics of chlorite.Our findings indicate that infrared spectroscopy effectively identifies minerals in volcanic and igneous rocks. The FMI from TIR spectra reliably distinguishes relative changes in ferromagnesian content, aiding in lithological differentiation and understanding ore-forming environments. XRF data provide valuable insights into the major and trace element trends within the drill core.Chlorites in the drill core are classified as disseminated, sheet-like, and veinlet-distributed, primarily consisting of clinochlore and penninite, with all types being trioctahedral. Disseminated and sheet-like chlorites formed at higher temperatures (300-349°C) compared to veinlet-distributed chlorites (190-324°C). The Pos2250 feature in chlorite infrared spectra ranges from 2245nm to 2257nm without a clear trend throughout the core.Notably, this study proposes that the presence of chlorites with wavelengths less than 2248.8nm at depth may indicate high-temperature uranium-thorium mineralization in the Lu-Zhong district, providing a new indicator for exploration.