Increasing the Permeability of Hydrothermally Altered Andesite by Transitory Heating

Journal paper. Geochemistry, Geophsysics and Geosystems. This study describes the results of thermal heating events lasting several hours on a “moderately altered” plagioclase‐clinochlore‐calcite‐quartz andesite and a “highly altered” plagioclase‐ clinozoisite‐quartz‐clinochlore andesite from the Rotokawa Geothermal Field, New Zealand.