Middle Ordovician astrochronology decouples asteroid breakup from glacially-induced biotic radiations
oleh: Jan Audun Rasmussen, Nicolas Thibault, Christian Mac Ørum Rasmussen
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2021-11-01 |
Deskripsi
The Middle Ordovician icehouse has been suggested to be sparked by extra-terrestrial dust associated with an asteroid break-up. Here, the authors use an astronomically calibrated timescale to decouple millennia-scale climate and biodiversity change from the meteorite shower 468.4 million years ago.