TERMIUM Plus®

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PERIPHERAL BULGE COLLAPSE [1 record]

Record 1 2008-09-12

English

Subject field(s)
  • Glaciology
  • Geomorphology and Geomorphogeny
OBS

On deglaciation, ... the forebulge collapses. ... Finally, collapse of the forebulge is shown by the rapid sea level rise in the north east U.S.A. (where the bulge exceeded 80 m), and by geodetic survey in the Great Lakes region.

OBS

Term used in the Decade of North American Geology, Volume 1, Chapter 8.

French

Domaine(s)
  • Glaciologie
  • Géomorphologie et géomorphogénie
DEF

Creux rarement continu qui entoure un bouclier ou un massif ancien lorsqu'une série sédimentaire commençant par des roches meubles recouvre le contact bouclier-bassin sédimentaire.

CONT

[...] on peut dire que par rapport à un géoïde moyen immuable, l'émergence au centre est de 107 cm/siècle, et qu'elle s'accompagne d'un enfoncement périphérique qui peut atteindre 25 cm/siècle.

OBS

Le terme «enfoncement périphérique» réfère à l'enfoncement du bourrelet périphérique.

Spanish

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