Ignimbrite igneous rock (dark grey) deposited by a pyroclastic flow during the Silurian period (443 to 417 million years ago). A pyroclastic flow is a hot cloud of gas and rock particles produced during a volcanic eruption | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Stammers, Sinclair |
Bildgröße: | 3780 px × 4644 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |