Results 201 to 210 of about 58,216 (258)

A sudden end-Permian mass extinction in South China

GSA Bulletin, 2018
Previous studies of the end-Permian mass extinction have established that it was geologically rapid, but condensed sections have made it difficult to establish the exact timing of the extinction relative to fluctuations in the ocean carbon cycle, oxygen ...
S. Shen, J. Ramezani, Jun Chen, Changqun Cao, D. Erwin, Hua Zhang, L. Xiang, S. Schoepfer, C. Henderson, Quan‐Feng Zheng, S. Bowring, Yue Wang, Xian‐Hua Li, Xiangdong Wang, D. Yuan, Yi‐chun Zhang, Lin Mu, Jun Wang, Yasheng Wu   +18 more
semanticscholar   +1 more source

Permian

1993
Abstract Permian rocks are preserved throughout most of the eastern Cordillera and locally, in the Peace River-Liard River area, on the Interior Platform (Fig. 4F.1, 4F.2, 4F.3). They are absent from the remainder of the Interior Platform and from most of the Mackenzie Mountains through truncation at several disconformities beneath ...
C.M. Henderson, E.W. Bamber, B.C. Richards, A.C. Higgins, A. McGugan   +4 more
openaire   +1 more source

Two-stage marine anoxia and biotic response during the Permian–Triassic transition in Kashmir, northern India: pyrite framboid evidence

Global and Planetary Change, 2019
Although expanded ocean anoxia has long been believed to be a direct killing mechanism causing mortality of organisms during the Permian-Triassic mass extinction, little has been published on the extent and timing of this anoxia in Gondwana.
Yuangen Huang, Zhong‐Qiang Chen, T. Algeo, Laishi Zhao, A. Baud, G. Bhat, Lei Zhang, Zhen Guo   +7 more
semanticscholar   +1 more source

Establishing the link between Permian volcanism and biodiversity changes: Insights from geochemical proxies

Gondwana Research, 2019
Current understanding of biodiversity changes in the Permian is presented, especially the consensus and disagreement on the tempo, duration, and pattern of end-Guadalupian and end-Permian mass extinctions. The end-Guadalupian mass extinction (EGME; i.e.,
Jun Chen, Yigang Xu
semanticscholar   +1 more source

Permian

1994
Abstract The basic map of Permian palaeobiogeographical provincialization of the world used in this chapter is by Scotese et al. (1979) with a modification of the Chinese part according to Chinese palaeomagnetic and palaeoclimatic inforn1ation, discussed in detail in this chapter and Chapter 15.
Xu Guirong, Yang Weiping
openaire   +1 more source

Frequent and intense fires in the final coals of the Paleozoic indicate elevated atmospheric oxygen levels at the onset of the End-Permian Mass Extinction Event

International Journal of Coal Geology, 2019
During the End-Permian mass extinction event (EPME) there is extensive evidence for depletion of oxygen in the marine realm. Atmospheric models based upon biogeochemical cycling predict a comparable decline leading up to this event and have been ...
Zhiming Yan, L. Shao, I. Glasspool, Juan Wang, Xuetian Wang, Hao Wang   +5 more
semanticscholar   +1 more source

Persistent late Permian to Early Triassic warmth linked to enhanced reverse weathering

Nature Geoscience, 2022
Cheng Cao, C. Bataille, Haijun Song, M. Saltzman, Kate Tierney Cramer, Huaichun Wu, C. Korte, Zhao-Yu Zhang, Xiao-Ming Liu   +8 more
semanticscholar   +1 more source

Carboniferous and Permian integrative stratigraphy and timescale of North China Block

Science China. Earth Sciences, 2022
Boheng Shen, Shuzhong Shen, Qiong Wu, Shuichang Zhang, Bin Zhang, Xiangdong Wang, Z. Hou, Dongxun Yuan, Yi‐chun Zhang, Feng Liu, Jun Liu, Hua Zhang, Yukun Shi, Jun Wang, Zhuohai Feng   +14 more
semanticscholar   +1 more source

Permian

2018
Tom McCann, Hubert Kiersnowski, Karl Krainer, Anna Vozarova, Tadeusz M. Peryt, Stanislav Oplustil, Harald Stollhofen, Jorg Schneider, Andreas Wetzel, Frederic Boulvain, Michiel Dusar, Akos Torok, Janos Haas, Jenny Tait, Frank Korner   +14 more
  +4 more sources

Permian

2016
James G. Ogg, Gabi M. Ogg, Felix M. Gradstein   +2 more
openaire   +2 more sources