Scott, B.J.; Henrys, S.A. (comps) 2002 Seismix2003 : mid conference field trip guide : geothermal systems, 8 January 2003. Lower Hutt: Institute of Geological & Nuclear Sciences Limited. Institute of Geological & Nuclear Sciences information series 53 27 p.
Abstract: This field trip will visit two geothermal systems Ohaaki-Broadlands and Waiotapu. Ohaaki-Broadlands is being utilised for electricity generation to produce close to 45 MW of electrical energy from 17 production bores (50 bore holes have been drilled). Waiotapu is not being exploited for geothermal power but is a geothermal system that has a variety of natural surface features. On the field trip we will be seeing a region characterised by moderate-large upflows of chloride waters and steam heated features. Small-moderate hydrothermal eruptions occurred in this area 600-700 years ago. (auth)