Optical Dates from British Isles Solifluction Sheets Suggests Rapid Landscape Response to Late Pleistocene Climate Change

Auteur(s) et Affiliation(s)

HARRISON, S.

School of Geography, Archaeology and Earth Resources, University of Exeter, Penryn, Royaume-Uni

BAILEY, R.M.

Oxford University Centre for the Environment, Univ., Oxford, Royaume-Uni

ANDERSON, E.

Bede College, Stockton on Tees, Royaume-Uni

ARNOLD, L.

GeoQuest Research Centre, Univ., Wollongong, Australie

DOUGLAS, T.

Dept. of Geography, University of Northumbria, Newcastle-upon-Tyne, Royaume-Uni

Description :
The most widespread depositional landforms in many of the upland valleys of the British Isles which have undergone glaciation during the Last Glacial Maximum (LGM) are so-called solifluction sheets. This paper presents the first dates from these landforms in the British Isles. The AA. used optical dating on deposits exposed at Linhope Burn in the Cheviot Hills of North East England. The results suggest that the bulk of sediment deposition at this site happened over a period spanning the Younger Dryas. The AA. argue that both paraglacial and periglacial processes can account for the main periods of deposition and that the timing of sediment deposition reflects the rapidity with which landform development responded to climatic shifts.

Type de document :
Article de périodique

Source :
Scottish geographical journal (Online), issn : 1751-665X, 2010, vol. 126, n°. 2, p. 101-111, nombre de pages : 11, Références bibliographiques : 2 p.

Date :
2010

Identifiants :
eurl : http://dx.doi.org/10.1080/14702541003712911, doi : http://dx.doi.org/10.1080/14702541003712911

Editeur :
Pays édition : Royaume-Uni, Abingdon, Taylor and Francis

Langue :
Anglais