A catastrophic extinction occurred at the end of the Permian Period. However, baseline extinction rates appear to have been elevated even before the final catastrophe, suggesting sustained environmental degradation. For terrestrial vertebrates during the Late Permian, the combination of a drop in atmospheric oxygen plus climate warming would have induced hypoxic stress and consequently compress...

Early Permian fossil localities, including numerous tracksites, in the southern Robledo Mountains of Dona Ana County, New Mexico, cover an area of approximately 20 km2 . Lower Permian strata exposed here belong to four formations of the Hueco Group (ascend ing order): Shalem Colony, Community Pit, Robledo Mountains and Apache Da m Formations. With the exception of the Robledo Mountains Formatio...

The Alpine Haselgebirge Formation represents an Upper Permian to Lower Triassic evaporitic rift succession of the Northern Calcareous Alps (Eastern Alps). Although the rocksalt body deposits are highly tectonised, consisting mainly of protocataclasites and mylonites of halite and mudrock, the early diagenetic history can be established from non-tectonised mudrock bodies: Cm-sized euhedral halit...

The Whitehorse Group and Quartermaster Formation are extensive red-bed terrestrial sequences representing the final episode of sedimentation in Palo Duro Basin north-central Texas, U.S.A. Regionally, these strata record culmination a long-term regression sequence beginning middle to late Permian. includes beds abundant laminated massive red quartz siltstone fine sandstone rare dolomite, gypsum,...

At present, the Carboniferous-Permian shale gas in South North China Basin is still exploration stage, and understanding of microscopic pore structures, mineral composition hydrocarbon enrichment law marine-continental transitional reservoirs this area extremely limited. In paper, taking reservoir as an example, geological conditions accumulation have been systematically studied using a large a...