Bagh Vang Section is located at about 45 km to the Northwest of Tabas and South of Shirgesht areas. In Bagh Vang Section, the Permian deposits of the Jamal Formation with a thickness of 270 m are underlain by the Sardar Formation disconformably. The formation is also transitionally and conformably overlain by Lower Triassic deposits of Sorkh Shale Formation. A total of 124 rock samples have bee...

Abstract To help resolve current controversies surrounding the fundamental question of synchrony between end-Permian mass extinction on land and in sea, we examined marine Permian–Triassic reference section at Meishan (southeastern China) for land-derived molecular degradation products pentacyclic triterpenoids with oleanane carbon skeletons, diagnostic Permian plant genus Gigantopteris. We ide...

The biggest known mass extinction in the history of animal life occurred at Permian–Triassic boundary and has often been linked to global warming. Previous studies have suggested that a geologically rapid (<40 kyr) temperature increase more than 10°C simultaneously with main pulse. This hypothesis is challenged by geochemical palaeontological data indicating profound environmental perturbations...

—The end-Guadalupian extinction, at the end of the Middle Permian, is thought to have been one of the largest biotic crises in the Phanerozoic. Previous estimates suggest that the crisis eliminated 58% of marine invertebrate genera during the Capitanian stage and that its selectivity helped the Modern evolutionary fauna become more diverse than the Paleozoic fauna before the end-Permian mass ex...

Abstract The Permian marine-terrestrial system of the North China block provides an exceptional window into evolution northern temperate ecosystems during critical transition from icehouse to greenhouse following late Paleozoic ice age (LPIA). Despite many studies on its rich hydrocarbon reserves and climate-sensitive fossil flora, uncertain temporal constraints correlations have hampered a tho...

The initiation of a continental rift or the birth an oceanic basin, and their long-term evolution, are challenges in understanding evolution regional global tectonics. Rifts develop within interior margins plates, essentially as extensional structures, they have been studied widely since discovery plate eastern segment Paleo-Tethys traversed central Asia, its structural features, timing, geolog...

Nineteen sites with 198 oriented-core samples have been collected from the Upper Permian-Lower Triassic volcanic rocks of Vien Nam Formation at Quynh Nhai locality, Son La Province, northwestern Vietnam. The characteristic remanent magnetization components carried by magnetite and hematite were successfully isolated secondary reveal a mean paleomagnetic direction Ds = 48.3°, Is -10.0°, a95 8.0°...