Abstract：The Upper Triassic Riganpeicuo Formation(Carnian-Rhaetian)is composed of a thick set of fossil-rich carbonate rocks at the Renacuo area，Gaize，Tibet. Eleven major types of carbonate rocks were identified, i e.， marlite，bioclastic mudstone，bioclastic wackestone，bioclastic packstone，intraclastic packstone，intraclastic grainstone，algal grainstone，multi-types of oolitic grainstone，single-type of oolitic grainstone，pellet packstone and reef limestone. According to the petrological characteristics and assemblage types，five sedimentary facies were divided: Terrigenous detrital littoral facies，restricted-platform facies，open-platform facies，platform edge bank facies and platform edge reef facies. They constituted the four transgressive-regressive cycles of the Riganpeicuo Formation，which overall showed a facies sequence of transgression.
Hou En′gang,Gao Jinhan,Wang Xunlian et al. Carbonate petrological characteristics and sedimentary environment of the Upper Triassic Riganpeicuo Formation at Renacuo area，Gaize，Tibet[J]. JOPC, 2014, 16(3): 347-358.
