| Abstract |
The Waiotapu geothermal system lies within the Taupo Volcanic Zone of New Zeal and; i t has the greatest heat flow and largest area of any system the country. The system was explored in the 1950's; maximum measured temperature was 295 C in the south, temperature inversions measured in the north. A mixing model incorporating well and surface sprin chemistry indicates that the focus of 1 km) fluid upflow is in the north, below drilled depths. This upflow is deflected southwards by a near surface, laterally flowing d. |