Abstract:Titannium mineralization was studied during the investigation on more than 5158 m of the drill core rocks from the Chinese Continental Scientific Drilling (CCSD),it is found that the most important economic titanium mineral is rutile and then followed by titanomagnetite. The major titaniumbearing rocks are:common rutile eclogite ,quartz rutile eclogite,and rutile/ VTimagnetite eclogite; while phengite rutile eclogite,kyanite rutile eclogite and rutile biotite epidote uralitic rock (retrograded garnet pyroxenite) are the minor orebearing rocks. Based on the mineralization degree and rock assemblages, the lithology can be divided into three sections as follows: ① 0~2038m: the major occurrences for various kinds of eclogites with the most intensive titanium mineralization and largest in eclogite thickness of the main hole ; ② 2038~3597m: the thinbedded, poorly mineralized section of the hole, with a sporadic distribution, contains 13 of retrograded and highly retrograded eclogites with thicknesses ranging from 4 to 37 meters. Main country rocks are sphene, ilmenite, titano magnetite, biotite amphibolefelsicgneiss,and titanomagnetitebearing monzonitic gneiss, with welldeveloped shear zones composed of both mylonites and cataclasite breccia belts within them various sized druse and veinlets of quartz and calcite are common;③ 3597 to the end of the hole: composed mainly of variouslymylonitized titanomagneititebearing biotite amphibole felsic gneiss and mylonitized amphibole biotite monzonitic gneiss intercalated with amphibole biotite schists, without eclogite below 3597 m. However, a great amount of veinlets containing REE minerals were found between 3577 an 5140 m of the hole. Six types of rocks including eclogite and 13 type of ores were recognized, this study mainly focuses on the mineralogy of the titanium minerals,the trace element of rutile,the geochemistry characteristics of rutile mineralization and evolution of titanium mineral in every stages. It is suggested that ultrapressure metamorphic minerals and titanium originated from the mantle plume resulting from the Neoprotorozoic Rodinia supercontinent breakup event.