Results 31 to 40 of about 46,904 (239)
For the first time fossil macroscopic remains of charcoal as direct evidence of palaeo-wildfires from the Late Permian Gröden Formation of the Bletterbach-Butterloch area in Northern Italy is described.
DIETER UHL +4 more
doaj +1 more source
Early Permian Pangea ‘B’ to Late Permian Pangea ‘A’
The pre-drift Wegenerian model of Pangea is almost universally accepted, but debate exists on its pre-Jurassic configuration since Ted Irving introduced Pangea 'B' by placing Gondwana farther to the east by ∼3000 km with respect to Laurasia on the basis of paleomagnetic data.
G. Muttoni +5 more
openaire +4 more sources
The fluid evolution and reservoir formation model of the ultra-deep gas reservoirs in the Permian Qixia Formation of the northwestern Sichuan Basin are investigated by using thin section, cathodoluminescence, inclusion temperature and U-Pb isotopic ...
Jianzhong LI +8 more
doaj +1 more source
The fossil record of early tetrapods: worker effort and the end-Permian mass extinction [PDF]
It is important to understand the quality of the fossil record of early tetrapods (Tetrapoda, minus Lissamphibia and Amniota) because of their key role in the transition of vertebrates from water to land, their dominance of terrestrial faunas for over ...
Bebber D.F. +18 more
core +3 more sources
Earliest Triassic microbialites in the South China Block and other areas; controls on their growth and distribution [PDF]
Earliest Triassic microbialites (ETMs) and inorganic carbonate crystal fans formed after the end-Permian mass extinction (ca. 251.4 Ma) within the basal Triassic Hindeodus parvus conodont zone.
A Baud +77 more
core +2 more sources
A geological event that happened at the end of the Middle Permian resulted in different levels of erosion in a shallow-water platform of South China, which led to diverse geological records in different sections.
Ke-Yu Zhu +3 more
doaj +1 more source
Evaporites and the salinity of the ocean during the Phanerozoic: Implications for climate, ocean circulation and life [PDF]
A compilation of data on volumes and masses of evaporite deposits is used as the basis for reconstruction of the salinity of the ocean in the past.
Balukhovsky, A. N. +5 more
core +1 more source
Time-calibrated Milankovitch cycles for the late Permian [PDF]
AbstractAn important innovation in the geosciences is the astronomical time scale. The astronomical time scale is based on the Milankovitch-forced stratigraphy that has been calibrated to astronomical models of paleoclimate forcing; it is defined for much of Cenozoic–Mesozoic.
Wu, Huaichun +6 more
openaire +2 more sources
The Permian tight clastic reservoir and Ordovician carbonate reservoir were developed in the central-southern Ordos Basin. This study investigated the fluid inclusion petrography, diagenetic fluid characteristics, formation process of natural gas ...
Ruijing Zhu +6 more
doaj +1 more source
Decoupling of morphological disparity and taxic diversity during the adaptive radiation of anomodont therapsids [PDF]
Adaptive radiations are central to macroevolutionary theory. Whether triggered by acquisition of new traits or ecological opportunities arising from mass extinctions, it is debated whether adaptive radiations are marked by initial expansion of taxic ...
Anderson MJ +7 more
core +1 more source

