Exploration Guides for Active High-Temperature Geothermal Systems as Modern Analogs for Epithermal Paleosystems
- Key words
- Geothermal Systems, Low-Sulfidation Epithermal Systems; Exploration Guides; Conceptual Model; Ore Deposit; Geothermal Field
- Location
- Bouillante, Guadeloupe; Indonesia; Philippines; New Zealand; Fiji
- Conference
- Geothermal Resources Council Transactions
- Year
- 2009
- Session
- Exploration; High temperature reservoirs; Geochemical survey
- Language
- English
Abstract
Active high-enthalpy geothermal systems in island-arc environments have similar parameters to low-sulfidation Au- Ag epithermal paleosystems. A comparison of the two systems in terms of i) regional to local volcano-tectonic settings, ii) timing between the magmatic and hydrothermal events and duration of the hydrothermal event, iii) distance between the cooling magma body and the geothermal field (or ore deposit), iv) hydrothermal fluids and their surface expression, and v) geothermal reservoirs as against epithermal orebodies, have enabled us to formulate exploration guides for the discovery of new geothermal fields.
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