Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [295537] |
Timing and pacing of the Late Devonian mass extinction event regulated by eccentricity and obliquity
De Vleeschouwer, D.; da Silva, A.-C.; Sinnesael, M.; Chen, D.; Day, J.E.; Whalen, M.T.; Guo, Z.; Claeys, P. (2017). Timing and pacing of the Late Devonian mass extinction event regulated by eccentricity and obliquity. Nature Comm. 8: 2268. https://dx.doi.org/10.1038/s41467-017-02407-1
In: Nature Communications. Nature Publishing Group: London. ISSN 2041-1723; e-ISSN 2041-1723, meer
|   |
| Auteurs | | Top |
- De Vleeschouwer, D., meer
- da Silva, A.-C., meer
- Sinnesael, M., meer
- Chen, D.
|
- Day, J.E.
- Whalen, M.T.
- Guo, Z.
- Claeys, P., meer
|
|
| Abstract |
The Late Devonian envelops one of Earth’s big five mass extinction events at the Frasnian–Famennian boundary (374 Ma). Environmental change across the extinction severely affected Devonian reef-builders, besides many other forms of marine life. Yet, cause-and-effect chains leading to the extinction remain poorly constrained as Late Devonian stratigraphy is poorly resolved, compared to younger cataclysmic intervals. In this study we present a global orbitally calibrated chronology across this momentous interval, applying cyclostratigraphic techniques. Our timescale stipulates that 600 kyr separate the lower and upper Kellwasser positive δ13C excursions. The latter excursion is paced by obliquity and is therein similar to Mesozoic intervals of environmental upheaval, like the Cretaceous Ocean-Anoxic-Event-2 (OAE-2). This obliquity signature implies coincidence with a minimum of the 2.4 Myr eccentricity cycle, during which obliquity prevails over precession, and highlights the decisive role of astronomically forced “Milankovitch” climate change in timing and pacing the Late Devonian mass extinction. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
