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METEORISE [5 records]

Record 1 2006-11-03

English

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

Very high grades may be encountered in weathered diatreme facies kimberlite at the surface.

CONT

In weathered materials [aluminum] accumulates in clay minerals or in purely aluminous ones such as gibbsite, boehmite and diaspore, which are the principal minerals of bauxite.

CONT

The nickel occurs in both the laterite and the weathered rock zone. ... The material mined is generally a mixture of the lower parts of the laterite and the weathered rock zone.

CONT

Greensands contain a sufficient quantity of the mineral glauconite to give a green colour to the fresh unweathered rock. Weathered or otherwise oxidised greensands are brown.

PHR

Weathered carbonatite, gneiss, material, rock, serpentinite, terrain, zone.

French

Domaine(s)
  • Géochimie
  • Érosion et corrosion (Géologie)
  • Mines métalliques
DEF

Se dit de roches qui se sont détériorées sous l'effet des agents atmosphériques.

CONT

Des teneurs très élevées sont parfois relevées à la surface dans les kimberlites de faciès de diatrème météorisées.

CONT

On notera la concentration du zirconium [...] dans la zone d'altération météorique.

CONT

Affleurement altéré par l'action des agents atmosphériques.

PHR

Carbonatite, roche, zone météorisée.

PHR

Terrain météorisé.

Spanish

Campo(s) temático(s)
  • Geoquímica
  • Erosión y corrosión (Geología)
  • Minas metálicas
DEF

Meteorizar. Alterar y desagregar los agentes meteóricos las rocas que están en contacto con la atmosfera. Cf Encicl. SALVAT, 1975, t. 15, p. 143

Save record 1

Record 2 2006-03-06

English

Subject field(s)
  • Erosion and Weathering (Geol.)
  • Geochemistry
CONT

Unweathered carbonatitic bedrock.

French

Domaine(s)
  • Érosion et corrosion (Géologie)
  • Géochimie
CONT

Substratum carbonatitique non météorisé.

Spanish

Save record 2

Record 3 2004-02-25

English

Subject field(s)
  • Erosion and Weathering (Geol.)
  • Geochemistry
CONT

... surface grades (highly weathered kimberlite) were initially more than 150 c/100 t [carats by 100 tonnes] ... and after 15 years of mining were 32 c/100 t (the present day grade).

French

Domaine(s)
  • Érosion et corrosion (Géologie)
  • Géochimie
CONT

[...] les teneurs en surface (kimberlites fortement météorisées) étaient au début de l'exploitation supérieures à 150 ct/100 t [carats par 100 tonnes], mais [...] ont chuté [...] à 32 ct/100 t (teneur actuelle) après 15 ans.

Spanish

Save record 3

Record 4 2004-02-11

English

Subject field(s)
  • Erosion and Weathering (Geol.)
  • Geochemistry
CONT

... phosphate is recovered from fresh rock rather from a weathered residuum ...

French

Domaine(s)
  • Érosion et corrosion (Géologie)
  • Géochimie
CONT

[...] des phosphates sont extraits de roches fraîches plutôt que d'un sol résiduel météorisé [...]

Spanish

Save record 4

Record 5 1997-01-01

English

Subject field(s)
  • Farm Equipment

French

Domaine(s)
  • Matériel agricole

Spanish

Save record 5

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