Report: TR 2013/07
Author: L M Murithi (University of Auckland)
Te Aroha geothermal system has been used for more than 100 years for several uses, including bathing, swimming and balneology. Previously there were more than 20 springs but this number has been halved in the intervening years.
The chemical surveys and analyses of the springs and determining the trends of the springs can be used to determine their potential application as well as their sustainability.
This project seeks to assess the chemistry of Te Aroha geothermal resource to determine the sustainability for continued production as well as assess the trends of the geothermal fluid.
|History of the system||2|
|Objectives of the report||6|
|The Te Aroha geothermal system||11|
|Silica (quartz) thermometers||21|
|Classification of thermal waters||23|
|Cl-SO4-HCO3 ternary diagram||23|
|Na-K-Mg triangular diagram||24|
|Cl-Li-B ternary diagram||25|
|Results and discussion||26|
|Appendix A - bore logs||33|
|Appendix B - Geothermal water quality site description sheet||36|