gîte mésothermal
- Domaine
-
- géologie
- Date
Définition :
Gîte formé par des solutions hydrothermales à température intermédiaire.
Terme :
- gîte mésothermal n. m.
Traductions
-
anglais
Date :Définition
A mineral deposit formed at moderate temperatures (between 175 and 300 °C) and moderate pressures, in and along fissures or other openings in rocks, by deposition at intermediate depths (4,000 to 12,000 feet) chiefly from hydrothermal fluids derived from consolidating intruding rocks. A mesothermal deposit differs from a mineral deposit formed in the deep veins and from one formed at shallow depths in its mineral composition and in the character of the alteration of the wall rock accompanying its formation.
Termes :
- mesothermal deposit
- mesothermal ore deposit