Solidified pahoehoe lava. Lava is molten rock that is expelled when a volcano erupts. Pahoehoe is basaltic lava that has a very smooth surface. Although it is viscous,pahoehoe has a low melting point,which means that it can travel great distances before solidifying. If it solidifies as it is flowing,it can form billowed,folded shapes,as here. This sample measures 190 millimetres across | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5026 px × 3419 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |