Columnar basalt rock. Basalt is a fine-grained,extrusive igneous rock found in most lava flows. Its pentagonal and hexagonal geometry is due to contraction on cooling. Basalt is extensively used in the construction industry. Photographed in Canada | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Nunuk, David |
Bildgröße: | 5102 px × 3425 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |