Imaging Upper-Crustal Convection Plumes Beneath the Taupo Volcanic Zone, New Zealand
- Key words
- Magnetotellurics, Passive-Seismology, Taupo Volcanic Zone, Geothermal Exploration
- Location
- Taupo Volcanic Zone, New Zealand
- Conference
- New Zealand Geothermal Workshop
- Year
- 2012
- Session
- 09. TVZ
- Language
- English
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Abstract
Beneath the Taupo Volcanic Zone (TVZ), rocks above the brittle-ductile transition (~7 km depth) have potential to provide a long-term geothermal energy resource for New Zealand. To investigate structures at depths down to ~7 km, detailed passive-seismic and magnetotelluric (MT) data have been collected in the southeastern TVZ. This paper describes the MT data analysis and shows detailed 2-D and initial 3-D inverse resistivity models of profiles that transect the Rotokawa and Ohaaki geothermal systems.
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