The Alpine Fault is a clearly marked topographic feature cutting obliquely across the South Island. The opposite sides have slid sideways past each other for 480 kilometres over the last 15–20 million years, separating rocks that were originally joined together. One distinctive feature marking the offset is a narrow belt of dunite and associated ultramafic rocks (shown in red). As the photographs show, the landscape on these rocks at the opposite ends of the Alpine Fault is very similar.
Te whakamahi i tēnei tūemi
Te Ara - The Encyclopedia of New Zealand
Reference: Inset photos GNS Science CN1191/11 (top) and CN6280/21 (bottom)
Photograph by Lloyd Homer
This item has been provided for private study purposes (such as school projects, family and local history research) and any published reproduction (print or electronic) may infringe copyright law. It is the responsibility of the user of any material to obtain clearance from the copyright holder.