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Table 3 Silica-geothermometers applied to the water samples

From: Geochemical/hydrochemical evaluation of the geothermal potential of the Lamongan volcanic field (Eastern Java, Indonesia)

Sample Chalcedony cond. Quartz cond. Quartz adiabatic
WP17 77 107 107
Tiris 1 107 134 130
Tiris 2 120 146 140
Tiris 3 140 164 155
Tiris 4 132 157 149
Tiris 5 134 158 150
Tiris 6 124 150 143
WP7 Lad 65 96 97
WP18 89 118 116
WP 5 3 34 44
  1. The numbers in bold are the most likely reservoir temperatures (in °C). Calculated following Fournier (1989)