Ohaaki hydrothermal field (Waikato, New Zealand)
Ohaaki geothermal field, New Zeland
| Volcano: | Ohaaki (see Ohaaki at the Smithsonian Institution website in a new tab) |
|---|---|
| Type: | Soil Diffuse Emission |
| Description: | The Ohaaki hydrothermal field in the Taupo Volcanic Zone (TVZ), a 250 km NE-trending zone of mainly andesitic to rhyolitic arc/back arc volcanism, within continental crust of the central North Island, New Zealand. This hydrothermal field is the site of a 116MWe geothermal power plant. The Ohaaki hot water reservoir, as defined by the area of low resistivity, covers 12.7 km2, has high non-condensable gas concentrations causing boiling at depths >1500 m and has a maximum reservoir temperature of 310 °C. |
Point of contact for this site:
Clinton Rissmann, clinton.rissmann@ES.govt.nz (Department of Geological Sciences, University of Canterbury)
Bibliographic references for this site
Rissmann Clinton, Bruce Christenson, Cynthia Werner, Matthew Leybourne, Jim Cole,Darren Gravley, 2012,Surface heat flow and CO2 emissions within the Ohaaki hydrothermal field, Taupo Volcanic Zone, New Zealand, Applied Geochemistry , vol.27, pp. 223–239, DOI: 10.1016/j.apgeochem.2011.10.006
