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(Article of periodic en Anglais - 2010)

Document title

Establishing lichenometric ages for nineteenth- and twentieth-century glacier fluctuations on South Georgia (South Atlantic)

published at : Lichenometry in subpolar environments. Special issue

Authors(s) and Affiliation(s)

ROBERTS S.J. (1) ; HODGSON D.A. (1) ; SHELLEY S. (1) ; ROYLES J. (1 2) ; GRIFFITHS H.J. (1) ; DEEN T.J. (1) ; THORNE M.A.S. (1) ;
(1) British Antarctic Survey, Cambridge, ROYAUME-UNI
(2) Dep. of Plant Sciences, Univ., Cambridge, ROYAUME-UNI

Abstract

As part of a reconnaissance study in Prince Olav Harbour (POH), South Georgia, the AA. measured the size of lichens (Rhizocarpon) on ice-free moraine ridges around 2 small mountain cirques. Their aims were twofold : first, to provide age estimates for lichen colonization, and hence, deglaciation of the moraine ridges, and second, to examine the potential of applying lichenometry more widely to provide deglacial age constraints on South Georgia. The AA. use long-term Rhizocarpon lichen growth rates from recent studies on sub-Antarctic Islands and the western Antarctic Peninsula to calculate likely age estimates. Results and discussion

Source

Thematical fascicle

published at : Geografiska annaler. Series A. Physical geography / ISSN 0435-3676 / CODEN GAPGAP

Editor : Svenska sällskapet för antropologi och geografi, Stockholm - SUEDE (1965)

Millesime : 2010, vol. 92, no 1 [pp. 125-139]

Bibliographic references : 1,5 p.

Collation : fig., tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 2704 A

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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