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LENTICULAR BEDDING [3 records]

Record 1 2012-03-02

English

Subject field(s)
  • Geology

French

Domaine(s)
  • Géologie
DEF

Faciès d'une couche qui s'atténue progressivement pour disparaître au sein d'un affleurement, d'un échantillon rocheux ou d'une carotte de sondage.

Spanish

Save record 1

Record 2 2008-08-08

English

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

The deposits in these estuaries present a wide variety of structures. Cross bedding channel sands, ripple lamination, reactivation surfaces, herringbone, flaser, wavy, and lenticular bedding... often entail criteria to diagnose... the dynamics of sedimentary transport.

OBS

reactivation surface: term used at Natural Resources Canada - Earth Sciences Sector.

French

Domaine(s)
  • Hydrologie et hydrographie
  • Érosion et corrosion (Géologie)
CONT

Les surfaces de réactivation sont produites par l'action du courant subordonné suite à l'érosion de la partie avale de la mégaride, qui s'est formée lors du courant dominant.

CONT

On observe souvent une surface de réactivation qui entame les lamines obliques antérieures (cette surface est produite au moment où le courant change de direction) [...]

OBS

surface de réactivation : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 2

Record 3 2003-08-12

English

Subject field(s)
  • Calcareous Rock (Quarrying)
  • Geology
OBS

beef : A quarrymen's term, used originally in Purbeck, southern England, for thin, flat-lying veins or layers of fibrous calcite, anhydrite, gypsum, halite, or silica, occurring along bedding planes of shale, giving a resemblance to beef. It appears to be due to rapid crystallization in lenticular cavities.

OBS

bacon: A quarrymen’s term used in Portland, southern England for beef.

French

Domaine(s)
  • Carrières de roches calcaires
  • Géologie
DEF

Mince lame de 1 à 5 cm d'épaisseur, au sein d'une roche sédimentaire, constituée de cristaux allongés et à peu près perpendiculaires aux épontes : calcite au sein de formations marneuses, etc.

PHR

Filon de calcite fibreux.

Spanish

Save record 3

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