This view, looking along the rift formed by the 1886 eruption, illustrates the changing nature of volcanism on Mt Tarawera. The mountain consists of several light-coloured rhyolite domes that were erupted at about 1314 AD. In contrast, basalt was erupted in 1886 and contact with groundwater caused a highly explosive eruption. The dark reddish-brown material close to the ground surface is 1886 scoria, and the underlying light-coloured layers are older rhyolitic tephra layers.
In the background is the andesite core volcano of Mt Edgecumbe (Pūtauaki). It last erupted about 3,200 years ago.
Using this item
Photograph by Lloyd Homer
Permission of GNS Science must be obtained before any use of this image.