Whenever a mineral or mineral assemblage comes into contact with a fluid with which it is
out of equilibrium, reequilibration will tend to take place to reduce the free energy of the …

Water plays a critical role in erosion and sediment transport and this relationship is most
evident in the hyperarid Atacama Desert of Northern Chile, a region characterized by …

Mineral replacement reactions take place primarily by dissolution-reprecipitation processes.
Processes such as cation exchange, chemical weathering, deuteric alteration, leaching …

Differential rates of plagioclase and K-feldspar weathering commonly observed in bedrock
and soil environments are examined in terms of chemical kinetic and solubility controls and …

The REE-Th weathering geochemistry and mineralogy has been investigated in a lateritic
soil cover in relation to the close hydrographical system at Goyoum (East Cameroon). The …

C 3 S hydration is an interesting example of chemical coupling between C 3 S dissolution, C–
S–H and portlandite precipitation. It occurs because Ca 2+, OH− and silicate ions are …

Although pseudomorphic mineral replacement reactions are common in all geological
environments, and have long been considered important to many geological processes …

Silicates constitute more than 90% of the rocks exposed in the Earth's land masses (Garrels
and Mackenzie, 1971). Most primary minerals comprising these rocks are …

The study of biogeochemical and hydrological cycles in small experimental watersheds on
silicate rocks, common for the Temperate Zone, has not yet been widely applied to the …

The studied bauxite horizons of Kanisheeteh located∼ 19 km east of Bukan (NW of Iran),
are part of the Irano-Himalayan karst bauxite belt lying conformably between Permian …