Snowball Earth, illustration. A depiction of how the Earth may have looked about 650 million years ago during a period when snow and ice may have covered most, if not all, of the Earth's surface and oceans. The 'snowball' period may have been caused by massive volcanic eruptions combined with a disturbed carbon cycle, meteoritic impacts, or variations in the Earth's orbit. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Sutton, Spencer |
Bildgröße: | 4834 px × 3300 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |