The Ediacaran Dengying Formation in Central Sichuan Basin is the deep dolomite gas reservoir with largest natural reserves China, providing an excellent example for understanding effect of diagenesis evolution on quality. By integrating petrology, geochemistry and situ U-Pb dating, this study aims to reveal genesis different rock fabrics their corresponding diagenetic events, discuss temporal r...

The diagenetic behavior of proteins, defined as large polypeptides, was examined over a 2-yr period at a mudflat site subject to intense bioturbation. Protein concentrations in the surface sediment correlated well with deposition of algal detritus from the water column. Cellular biomass made up a significant, though likely not a major, component of protein in the sediments; likewise, changes in...

Acknowledgements: The author gratefully acknowledges the support of the European Community given under MAST 2 contract CT92–0015.