Abstract: JingxiDaxin Area in Guangxi Province is an important gathering area of manganese deposit in China. The manganese deposit in the area is mainly distributed in the Mnbearing rock series of Upper Devonian Liujiang Formation (D3l), Wuzhishan Formation (D3w) and the Lower Carboniferous Luzhai Formation (C1lz).The Manganesebearing rock series is affected by the evolution of regional tectonic evolution,it is hosted in the narrowlong sag manganeseforming basin formed by the strikeslip mechanism of XialeiLingma fault and its development and continuous neritic shelf groove.Based on the geological investigation results and some related geological prospecting and exploration results of the area,the geological characteristics,distribution regularity,deposit genesis and prospecting direction of Manganesebearing rock series of the area are discussed in detail,the results show that the distribution regularity of Manganesebearing rock series and sedimentary environment area closely related to petrographic paleogeography environment,the distribution characteristics,scale and grade of manganese deposit are controlled by Manganesebearing rock series,the prospecting potential of the corresponding strata and orecontrolling structure of Manganesebearing rock series in the area is huge.

Key words: Manganese deposit, Manganesebearing rock series, Manganeseforming basin, Prospecting direction