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Superimposed Drumlins

  • J. Rose (a1) and J. M. Letzer (a1)

Abstract

Drumlins in parts of central Scotland and east Cumbria form two populations according to their size. In certain cases the small features are superimposed on the large. Drumlins, superimposed drumlins, and megadrumlins are considered to be part of a continuum of glacier bed forms, which is the product of changes in the stress applied by glaciers and the strength of bed material. Glacier behaviour can be inferred on the basis of this interpretation.

Drumlins in parts of central Scotland and east Cumbria form two populations according to their size. In certain cases the small features are superimposed on the large. Drumlins, superimposed drumlins, and megadrumlins are considered to be part of a continuum of glacier bed forms, which is the product of changes in the stress applied by glaciers and the strength of bed material. Glacier behaviour can be inferred on the basis of this interpretation.

Résumé

Les drumlins dans une partie de l'Écosse Centrale et de l'Est de Combres forment deux populations selon leurs dimensions. Dans certains cas, de petites formations sont superposées à des plus grandes. Les drumlins, drumlins de surimposition et megadrumlins, sont considérés comme une partie d'une gamme continue de formes propres aux lits glaciaires qui résulte de changements dans les contraintes appliquées par les glaciers et dans la résistance des matériaux du lit. On peut, sur la base de cette interprétation, reconstituer le comportement du glacier.

Zusammenfassung

Drumlins in Teilen von Mittel-Schottland und Cumbrien bilden zwei grössenabhängige Scharen. In bestimmten Fällen sind die kleineren Formen den grossen aufgesetzt. Drumlins, aufgesetzte Drumlins und Grossdrumlins werden als Teil eines Kontinuums von Formen am Gletscheruntergrund betrachtet, das das Ergebnis von Schwankungen der vom Gletscher aufgeprägten Spannung und der Festigkeit des Untergrundmaterials ist. Auf der Grundlage dieser Interpretation kann auf das Gletscherverhalten geschlossen werden.

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Copyright

References

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