Geothermal handbook: PlanninG and Financing power Generation t e c h n I c a L r e p o r t 2 / 2

Geochemical exploration i 
Samples are taken from existing hot springs and analyzed. The
results allow estimates to be made regarding the temperature of the fluid at the depth of
the reservoir and an estimation of the fluid’s origin and recharge within the geothermal
reservoir, thereby indicating the degree of permeability within the reservoir rock structure.
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Geological exploration i
Samples of rocks, sediments, and lava can be taken either from the
surface or obtained by core drilling to disclose the type of heat source and to estimate its
location and potential.
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