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MESOTHERMAL MINERALIZATION [3 records]

Record 1 2022-06-29

English

Subject field(s)
  • Mineralogy
  • Geochemistry
  • Metals Mining
  • Thermodynamics
CONT

Hydrothermal deposits. Minerals which occur usually in cross-cutting bodies such as veins, in igneous, sedimentary and metamorphic rocks.(i) hypothermal vein mineralization(300-500 °C)... ;(ii) mesothermal vein mineralization(200-300 °C)... ;(iii) epithermal vein mineralization(50-200 °C)....

French

Domaine(s)
  • Minéralogie
  • Géochimie
  • Mines métalliques
  • Thermodynamique
DEF

Minéralisation qui s'est formée sous une température variant entre 300 et 500 °C.

CONT

[...] en Kabylie de Collo des minéralisations hypo- et mésothermales montrent une répartition zonale par rapport aux granites miocènes [...]

Spanish

Save record 1

Record 2 1997-04-11

English

Subject field(s)
  • Petrography
  • Erosion and Weathering (Geol.)
  • Metals Mining
CONT

In most mesothermal gold veins, the gold mineralization occurs in the veins, but in some deposits the bulk of the gold is in the adjacent altered wallrocks, or in both.

OBS

wall-rock alteration: Alteration of country rock adjacent to hydrothermal ore deposits by the fluids responsible for or derived during the formation of the deposits ....

French

Domaine(s)
  • Pétrographie
  • Érosion et corrosion (Géologie)
  • Mines métalliques
CONT

Encaissant altéré : enrichi en carbonates et appauvri en silice.

OBS

Voir fiches «roche altérée» et «roche encaissante».

Spanish

Save record 2

Record 3 1996-11-19

English

Subject field(s)
  • Metals Mining
  • Geochemistry
  • Mineralogy
CONT

Mesothermal vein mineralization(200-300°C).

French

Domaine(s)
  • Mines métalliques
  • Géochimie
  • Minéralogie
CONT

Les changements minéralogiques en relation avec les minéralisations hypothermales sont l'apparition de grenats, amphiboles, pyroxène, tourmaline, biotite; avec les minéralisations mésothermales : séricite, chlorite, carbonates, silice, et, avec les minéralisations épithermales et surtout volcaniques, en général : quelquefois séricite,souvent chlorite, carbonates, adulaire, alunite, argile.

Spanish

Save record 3

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