A review of lichenometric dating of glacial moraines in Alaska

Lichenometry in subpolar environments. Special issue

Auteur(s) et Affiliation(s)

WILES, G.C.

Dep. of Geology, College, Wooster, Etats-Unis

BARCLAY, D.J.

Dep. of Geology, State Univ. of New York, Cortland, Etats-Unis

YOUNG, N.

Dep. of Geology, Univ., Buffalo, Etats-Unis

BRADWELL, T.

British Geological Survey, Edinburgh, Royaume-Uni

Description :
Research completed during the 1970s through the early 1980s developed lichen dating curves for 5 regions in the Arctic and subarctic mountain ranges beyond altitudinal and latitudinal treelines. Comparison of results from recent moraine-dating studies based on these 5 lichen dating curves with tree-ring based glacier histories from southern Alaska shows generally good agreement, albeit with greater scatter in the lichen-based ages. Cosmogenic surface-exposure dating of Holocene moraines has the potential to test some of the assumptions of the lichenometric technique and to facilitate the development of a new set of improved lichen dating curves for Alaska.

Type de document :
Article de monographie

Source :
Geografiska annaler. Series A. Physical geography, issn : 0435-3676, 2010, vol. 92, n°. 1, p. 101-109, nombre de pages : 9, Références bibliographiques : 1 p.

Date :
2010

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

Langue :
Anglais