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(Article of periodic en Anglais - 2012)

Document title

Late Weichselian varve archives re-explored to assess proglacial sedimentary chronologies using the principles of tree-ring analysis

Authors(s) and Affiliation(s)

HELAMA S. (1) ; HYTTINEN O. (2) ; SALONEN V.-P. (2) ;
(1) Univ. of Lapland, FINLANDE
(2) Univ., Helsinki, FINLANDE

Abstract

Here the AA. demonstrate the advantages and convenience of applying tree-ring statistical methods to varve records, using an extensive varve archive originating from southern Finland. The data series of individual varve-thickness diagrams were metamorphosed by detrending, prewhitening and averaging, that is, by the methods adopted from tree-ring science. The varve-thickness diagrams could be categorized into two types, those having regional chronological importance and those showing only subregional (distance < 20 km) correlativity. The varves of former type ought to be regarded as primary constituents of the geochronology. The varves of latter type have low geochronological validity although they may bear local sedimentological importance. The findings have the potential to modernize the science of varve-based geochronologies

Source

Article of periodic

published at : Progress in physical geography / ISSN 0309-1333 / CODEN PPGEEC

Editor : Sage Publications, London - ROYAUME-UNI (1977)

Millesime : 2012, vol. 36, no2 [pp. 187-208]

Bibliographic references : 3 p.

Collation : 8 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 14648 A

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1177/0309133311434243

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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