Seitenpfad:
- Isotopengeochemie
- Forschung und Projekte
- Earths environmental history
- Permian Triassic Boundary
Permian Triassic Boundary
Permo Triassic
The Permian Triassic Boundary (PTB) mass extinction, represents the most catastrophic loss of biodiversity in geological history, and played a major role in dictating the subsequent evolution of modern ecosystems. The direct cause of the mass extinction is widely debated with a diverse range of mechanisms proposed, including widespread water column anoxia, euxinia, global warming and ocean acidification. The main results of this project are exceptional documentations of (i) a short-lived ocean acidification event, which likely drove the preferential loss of heavily calcified biota during the mass extinction and (ii) highly dynamic anoxic-ferruginous ocean conditions affecting the recovery of biological diversity by creating only local, short-lived, oxic refugia in the aftermath of the mass extinction.
Related Publications
Clarkson, M.O., Wood, R.A., Poulton, S.W., Richoz, S., Newton, R.J., Kasemann, S.A., Bowyer, F., Krystyn, L. (2016). Dynamic anoxic ferruginous conditions during the end-Permian mass extinction and recovery. Nature Communications 7, doi:10.1038/ncomms12236.
Clarkson, M.O., Kasemann, S.A., Wood, R.A., Lenton, T.M., Daines, S.J., Richoz, S., Ohnemueller, F., Meixner, A., Poulton, S.W., Tipper, E.T. (2015). Ocean acidification and the Permo-Triassic mass extinction. Science, 348 no. 6231, 229-232, DOI: 10.1126/science.aaa0193 .
Clarkson, M.O., Kasemann, S.A., Wood, R.A., Lenton, T.M., Daines, S.J., Richoz, S., Ohnemueller, F., Meixner, A., Poulton, S.W., Tipper, E.T. (2015). Ocean acidification and the Permo-Triassic mass extinction. Science, 348 no. 6231, 229-232, DOI: 10.1126/science.aaa0193 .
Projects
