This present study provides an overview of the clay-mineral reactions involved in the
chloritization process in a mixed-layer mineral series, and focuses on the properties of the …

The study of active and fossil hydrothermal systems shows clay minerals to be a
fundamental tool for the identification and characterization of hydrothermal alteration facies …

It is our pleasure to present this large body of information and thoughts of many mineral
scientists which has accumulated over decades. Illite is a mineral that has been discovered …

Electromagnetic (EM) data provide a substantial contribution to the geophysical mapping
and monitoring of geothermal reservoirs. This paper presents an up-to-date picture of the …

The underground circulation of hot water, of interest for geothermal energy production, is
often indirectly inferred from the presence of minerals formed by hydrothermal alteration at …

We propose a thermodynamic approach to model the stepwise dehydration with increasing
temperature or decreasing H2O activity of K, Na, Ca and Mg-smectite. The approach relies …

Quartz, adularia, and clay minerals from low-sulfidation epithermal veins at Hishikari (1.3–
0.7 Ma) were analyzed for their oxygen and hydrogen stable isotope compositions to …

The geothermal field of Bouillante (Guadeloupe, FWI) is a high-enthalpy hydrothermal
system emplaced in submarine volcanoclastic formations (hyaloclastites, scarce lava flows) …

Interaction of H2S and basaltic rocks in volcanic geothermal areas can originate from natural
up-flow of magmatic fluids or H2S artificial re-injection in relation to geothermal exploitation …

Iceland is very active tectonically as it is crossed by the Mid-Atlantic Ridge and its associated
rift zones and transform faults. The high-temperature geothermal systems are located within …