Fluid Inclusion Analysis in Core Samples from the Los Humeros Geothermal Field, Mexico
- Key words
- Exploration; Mexico; Los Humeros; Fluid Inclusions; Hydrothermal Alteration; NaCl; Salinity; Caldera; Inferred; Mineralization; Fault; Fault Zone; Hydrothermal
- Location
- Los Humeros, Mexico
- Conference
- Geothermal Resources Council Transactions
- Year
- 1988
- Session
- Exploration; Fluid inclusions; Core sampling; Geochemical su
- Language
- English
Abstract
The results obtained with the data for fluid inclusions from the Los Humeros geothermal field indicate a zonation in the hydrothermal activity. This zonation has been observed also in the studies of alteration minerals carried out for core and cuttings samples from the exploration wells. The three calderas contained within the field are characterized by different hydrothermal regimes that can be identified on the basis of the fluid inclusions data. The hottest part of the field is located in the central area, where the main outflow from the reservoir may be inferred. The temperatures outside of the central are related to the presence of the main faults. The thermal regimes determined with the fluid inclusion data are supported also by the alteration mineralogy observations.
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