Une reconstitution des climats du dernier cycle climatique à partir des diagrammes polliniques. Comparaison avec les données océaniques et glaciaires

Bosselin, B. (2003) Une reconstitution des climats du dernier cycle climatique à partir des diagrammes polliniques. Comparaison avec les données océaniques et glaciaires. Archeologia e Calcolatori, 14. pp. 111-136. ISSN 1120-6861

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Abstract

The multivariate treatment of long pollen sequences coming from peat bogs constitutes an easy and effective method of factorial regression for the semi-quantitative reconstruction of the Paleoclimates. The comparison of the results obtained for the upper Pleistocene with the isotopic profiles of sea- and ice-cores, then with the previous methods, confirms a structuralization of the last climatic cycle in four periods: the interglacial Riss/Wurm including the optimum Eemian, the lower pleniglacial, the Wurmian interpleniglacial and the upper pleniglacial, before the Holocene. A numbering system of these oscillations, correlated with the Dansgaard-Oeschger events recognized in the ice-cores of Greenland, is proposed. A final statistical treatment shows a cyclic evolution of the forest vegetation during the Eemian, an evolution which better translates the variations of the Paleoclimates (temperature and humidity) than the arboreal pollen rate (AP).

Item Type:	Article
Uncontrolled Keywords:	Statistics; theoretical and methodological problems
Subjects:	900 Storia, Geografia e discipline ausiliarie > 930 Storia dei mondo antico fino al 499 ca. > 930.1 Archeologia (Classificare qui la Storia fino al 4000 a.C., l'Archeologia preistorica, le opere interdisciplinari sull'Archeologia) > 930.102 Archeologia - Opere miscellanee > 930.1028 Archeologia – Tecniche, metodologie, apparecchi e strumenti (comprende: Archeometria) > 930.10285 Archeologia – Applicazioni informatiche (comprende: tecniche di datazione)
Depositing User:	Dott.ssa Paola Moscati
Date Deposited:	22 Apr 2009
Last Modified:	18 Apr 2017 11:47
URI:	http://eprints.bice.rm.cnr.it/id/eprint/855

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