Results 31 to 40 of about 46,904 (239)

WILDFIRES IN THE LATE PALAEOZOIC AND MESOZOIC OF THE SOUTHERN ALPS THE LATE PERMIAN OF THE BLETTERBACH-BUTTERLOCH AREA (NORTHERN ITALY)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2012
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’

open access: yesEarth and Planetary Science Letters, 2003
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

Fluid evolution and hydrocarbon accumulation model of ultra-deep gas reservoirs in Permian Qixia Formation of northwest Sichuan Basin, SW China

open access: yesPetroleum Exploration and Development, 2022
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]

open access: yes, 2010
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]

open access: yes, 2007
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

Evolution of sedimentary facies and fossil communities in the Middle Permian Maokou Formation in Zigui County, Hubei Province, South China

open access: yesJournal of Palaeogeography, 2018
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]

open access: yes, 2005
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]

open access: yesNature Communications, 2013
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 Accumulation Characteristics of the Paleozoic Reservoir in the Central-Southern Ordos Basin Recorded by Organic Inclusions

open access: yesGeofluids, 2021
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]

open access: yes, 2013
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

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