Earth crater,19th century artwork. Craters on Earth were used by 19th-century astronomers to explain the origin of lunar craters in terms of volcanism. It was not until 1893 that US geologist Grove Karl Gilbert (1843-1918) advanced his theory that lunar craters were caused by impact events,rather than volcanic eruptions | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Van Ravenswaay, Detlev |
Bildgröße: | 4583 px × 3854 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |