David Harper
Gästforskare
Mass extinctions over the last 500 myr : An astronomical cause?
Författare
Summary, in English
A Fourier analysis of the magnitudes and timing of the Phanerozoic mass extinctions (MEs) demonstrates that many of the periodicities claimed in other analyses are not statistically significant. Moreover we show that the periodicities associated with oscillations of the Solar System about the galactic plane are too irregular to give narrow peaks in the Fourier periodograms. This leads us to conclude that, apart from possibly a small number of major events, astronomical causes for MEs can largely be ruled out.
Avdelning/ar
- Berggrundsgeologi
Publiceringsår
2017-03
Språk
Engelska
Sidor
159-167
Publikation/Tidskrift/Serie
Palaeontology
Volym
60
Issue
2
Dokumenttyp
Artikel i tidskrift
Förlag
Wiley-Blackwell
Ämne
- Geology
Nyckelord
- Astronomical processes
- Mass extinctions
- Periodicity
- Phanerozoic
Aktiv
Published
ISBN/ISSN/Övrigt
- ISSN: 0031-0239