Paleoenvironmental setting, mechanism and consequence of massive organic carbon burial in the Permian Junggar Basin, NW China

•Reviews on tectonics and paleoenvironment of the Junggar Basin are present.•An updated chronostratigraphic framework is provided for Permian Junggar Basin.•Dry climate and evaporative environment prevailed during deposition of source rocks.•Stable salinity stratification and limited dilution promoted organic matter burial.•Organic carbon burial in lakes may act as a significant carbon sink in Permian.