Late Cambrian lithostratigraphic redivision for the Funing stratigraphic microrealm east of the Wenshan-Malipo fault zone in Yunnan

In the light of 1:50 000 regional geological mapping and section measurements during September 2008-2010 period and relevant previous data, the authors in the present paper propose a new scheme of re-establishment and redivision of the Late Cambrian strata in the Funing stratigraphic microrealm east of the Wenshan-Malipo fault zone in eastern Yunnan. The lithostratigraphic sequences consist,in an ascending order, of the platform-tidal flat carbonate rocks in the Tangjiaba Formation (∈₃), the tidal flat-lagoon terrigenous sedimentary rocks (intercalated with carbonate rocks in the lower and topmost parts) in the "Dalaobao Formation"(∈₃d), and the platform to tidal-flat carbonate rocks in the Bocaitian Formation (∈₃Ob), of which the "Dalaobao Formation" is a proposed stratigraphic unit in this study. The overlying strata are grouped into the Xiamududi Formation (O₁xm).