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PORTAIL D'INFORMATION GÉOGRAPHIQUE

Late-Holocene formation of Lake Michigan beach ridges correlated with a 70-yr oscillation in global climate

Auteur(s) et Affiliation(s)

DELCOURT, P.A.
University of Tennessee, Dept. of Geological Sciences, Knoxville, Tennessee, Etats-Unis


Description :
A radiocarbon-dated series of 75 beach ridges, formed at regular intervals averaging 72 yr over the past 5400 yr, provides further support for the existence of a 70-yr oscilllation in Northern Hemisphere climate, postulated recently from instrument data representing less than two cycles of this climate oscillation. Results from this study lend support to the interpretation that internal variations in the ocean-atmosphere system are an important factor in climate fluctuations on a decadal-centennial time scale.


Type de document :
Article de périodique

Source :
Quaternary research, issn : 0033-5894, 1996, vol. 45, n°. 3, p. 321-326, Collation : Illustration, Références bibliographiques : 28 ref.

Date :
1996

Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier

Langue :
Anglais
Droits :
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