Layer-cake mountainside
The layer-cake basalt slopes of Mt. Esja, seen over the rhyolite shoulder of Mt. Móskarðshnjúkar. Esja is a typical pre-ice age Icelandic mountain, made up of countless layers of dark basalt lava flows. The light-coloured rhyolite is rarer, found at the core of an extinct volcanic centre.
隨機精選照片
