Clay-mineral signatures of fossil and active hydrothermal circulations in the geothermal system of the Lamentin Plain, Martinique

A Mas (1) , P Patrier (1) , D Beaufort (1) , Albert Genter (2)

1 HydrASA - Hydrogéologie, Argiles, Sols et Altérations - UMR 6532
2 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)

Whereas the study of clay minerals (using parameters such as structure modifications, crystal chemistry) has proved to be an effective approach in order to mark the circulation zones and fluid temperatures in high-temperature systems, there is an important lack of data dealing with such problems in moderate- to low-temperature systems. This paper proposes to fill this lack by studying the site of the Lamentin Plain (Martinique), characterized by a low-temperature geothermal activity (50°C

Domains: Earth Sciences

A Mas, P Patrier, D Beaufort, Albert Genter. Clay-mineral signatures of fossil and active hydrothermal circulations in the geothermal system of the Lamentin Plain, Martinique. Journal of Volcanology and Geothermal Research, 2003, 124 (3-4), pp.195-218. ⟨10.1016/S0377-0273(03)00044-1⟩. ⟨hal-04083539⟩