Identifying moraine surfaces with similar histories using lichen size distributions and the U2 statistic, southeast Iceland

Auteurs :
ORWIN, J.F.
MCKINZEY, K.M.
STEPHENS, M.A.
DUGMORE, A.J.

Description :
In this paper, statistical analysis of lichen size distributions is used to identify moraine surfaces with similar histories from complex suites of Little Ice Age moraine fragments in the proglacial areas of moraine fragments of Skálafellsjökull (including Sultartungnajökull) and Heinabergsjökull. Moraine fragments with similar histories are identified using cluster analysis of the U2 closeness values. The spatial pattern of the clustered moraines suggests several distinct phases of moraine deposition. These spatial patterns are corroborated with tephrochronology.


Type de document :
Article de périodique

Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2008, vol. 90, n°. 2, p. 151-164, nombre de pages : 14, Collation : Illustration, Références bibliographiques : 36 ref.

Date :
2008

Editeur :
Pays édition : Suede, Stockholm, Svenska sällskapet för antropologi och geografi