solution hydrothermale
- Domaine
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- géologie
Terme :
- solution hydrothermale n. f.
Termes associés :
- hydrothermalyte n. f.
- fluide hydrothermal n. m.
- saumure hydrothermale n. f.
- solution métallifère n. f.
- solution minéralisatrice n. f.
- fluide minéralisateur n. m.
- fluide métallifère n. m.
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[saumure hydrothermale] Les métaux de solutions hydrothermales se combinent généralement avec l'acide chlorhydrique pour former des chlorures (saumures).
[solution minéralisatrice | fluide minéralisateur] Acception plus restreinte; une solution hydrothermale (ou un fluide) n'est pas nécessairement minéralisatrice.
Traductions
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anglais
Auteur : Université Laval,Définition
Hot, residual watery fluid containing large amounts of dissolved metal constituants which may precipitate as hydrothermal veins in discharge conduits, veins in association with permeability barriers, or stratiform chemical sediments at the surface.
Notes :
Hydrothermal solutions may be subdivided in two groups: metamorphic fluid reservoirs [which generate lode gold deposits] and submarine hydrothermal convective systems which generate massive base metal sulfide deposits. In the latter, water/rock ratios throughout the source volume may be of the order of 100:1 tp 1000:1 [...] and thus 200 000 times greater than for lode gold deposits.
[...] it is believed that the distinctive suites of metals in lode gold deposits vs. massive base metal sulphides reflect fundamentally different properties of the hydrothermal systems in terms of source, temperature, ratio of hydraulic to lithostatic pressure, water/rock ratio in source regions and abundance of CO².Terme :
- hydrothermal solution
Termes associés :
- hydrothermal fluid
- metalliferous solution
- mineralizing solution
- mineralising solution
- ore-forming solution
- ore-forming fluid
- ore solution
- ore fluid