Abstract Permian–Triassic boundary microbialites (PTBMs) that formed directly after the end-Permian extinction in South China Block are dominated by one structure, a lobate-form calcium carbonate construction created extensive very thin (ca. 2–20 m thick) framework biostromes shallow marine environments, effectively occupying ecological position of prior pre-extinction Permian reefs and/or asso...

Isotope data from bulk carbonates, micrite, marine calcite cements, non-skeletal grains and brachiopods indicate deposition of a wide spectrum of warm to cold water carbonates during the Ordovician and the Jurassic. This isotopic interpretation is supported by warm to cold climatic models proposed for the Ordovician and the Jurassic. These carbonates formed during the Greenhouse mode (condition...

isotope data from bulk carbonates, micrite, marine calcite cements, non-skeletal grains and brachiopods indicate deposition of a wide spectrum of warm to cold water carbonates during the ordovician and the jurassic. this isotopic interpretation is supported by warm to cold climatic models proposed for the ordovician and the jurassic. these carbonates formed during the greenhouse mode (condition...