Volcanic plug in the crater of the extinct Pululagua volcano on the western slopes of the Andes,Ecuador. A volcanic plug is formed when lava solidifies in the vent of an extinct volcano. Over time the less resistant rock of the volcano's cone erodes,leaving just the plug. This volcano,with a crater measuring 3 kilometres in diameter,has been extinct for roughly 2500 years | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Read, Dr. Morley |
Bildgröße: | 4880 px × 3582 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |