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MEANDRE VALLEE [3 records]

Record 1 1988-06-15

English

Subject field(s)
  • Geomorphology and Geomorphogeny
  • Hydrology and Hydrography
DEF

A generic term for an old stream meander that has become deepened by rejuvenation and that is more or less closely bordered or enclosed by valley walls.

OBS

Two types are usually recognized: entrenched and ingrown meander.

French

Domaine(s)
  • Géomorphologie et géomorphogénie
  • Hydrologie et hydrographie
CONT

Mail il existe également des méandres encaissés qui résultent, le plus souvent, de l'enfoncement sur place d'une vallée à méandres, en fonction d'un soulèvement de la région [...].

OBS

Cas réalisé quand la vallée méandre comme la rivière, à la même échelle.

Spanish

Save record 1

Record 2 1988-06-15

English

Subject field(s)
  • Hydrology and Hydrography
  • Geomorphology and Geomorphogeny
DEF

An incised meander carved downward into the surface of the valley in which the meander originally formed; it exhibits a symmetric cross profile. Such a deepened meander, which preserves its original pattern with little modification, suggests rejuvenation of a meandering stream, as when there has been a rapid vertical uplift or a lowering of base level.

French

Domaine(s)
  • Hydrologie et hydrographie
  • Géomorphologie et géomorphogénie
CONT

Mais il existe également des méandres encaissés qui résultent, le plus souvent, de l'enfoncement sur place d'une vallée à méandres, en fonction d'un soulèvement de la région (...).

Spanish

Save record 2

Record 3 1988-06-15

English

Subject field(s)
  • Hydrology and Hydrography
  • Geomorphology and Geomorphogeny
DEF

... a continually growing or expanding incised meander formed during a single cycle of erosion by the enlargement or accentuation of an initial minor sinuosity while the stream was actively downcutting; a meander that "grows in place". It exhibits a pronounced asymmetric cross profile (a well-developed, steep undercut slope on the outside of the meander, a gentle slip-off slope on the inside) and is produced when the rate of downcutting is slow enough to afford time for lateral erosion.

French

Domaine(s)
  • Hydrologie et hydrographie
  • Géomorphologie et géomorphogénie
CONT

Mais il existe également des méandres encaissés qui résultent, le plus souvent, de l'enfoncement sur place d'une vallée à méandres, en fonction d'un soulèvement de la région (...).

Spanish

Save record 3

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