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BOWLDER [2 records]

Record 1 2022-07-12

English

Subject field(s)
  • Insects, Centipedes, Spiders, and Scorpions
Universal entry(ies)
OBS

An insect (order Coleoptera) of the family Coccinellidae.

Key term(s)
  • Oregon ladybeetle
  • bowlder lady beetle
  • bowlder ladybeetle

French

Domaine(s)
  • Insectes, mille-pattes, araignées et scorpions
Entrée(s) universelle(s)
OBS

Insecte (ordre des coléoptères) de la famille des Coccinellidae.

Spanish

Save record 1

Record 2 2011-01-24

English

Subject field(s)
  • Petrography
DEF

[A] rock fragment over 60 cm (2 ft) in diameter.

CONT

The load carried by a stream varies enormously in the total quantity present and the size of the fragments, depending on the discharge and stage of the river. ... Boulders of great size may be moving over the stream bed, if the river gradient is steep.

OBS

In engineering practice boulders are greater than 20 cm (8 inches) in diameter.

OBS

In the Udden-Wentworth scale the sediment grades are: more than 256 mm, boulder ... In the British classification: more than 200 mm, boulder ...

French

Domaine(s)
  • Pétrographie
DEF

Fragment de roche de plus de 60 cm (2 pi) de diamètre.

CONT

La charge d'un cours d'eau est la masse ou le volume de matériaux qu'il évacue. [...] La charge du fond comprend les sables, les graviers, les galets et les blocs.

OBS

En génie, les blocs ont un diamètre supérieur à 20 cm (8 po).

Spanish

Save record 2

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