Dendrochronologie et bois fossile : un essai de datation par hétéroconnexion - article ; n°2 ; vol.32, pg 237-239

Pierre Demartin

Description

Annales. Économies, Sociétés, Civilisations - Année 1977 - Volume 32 - Numéro 2 - Pages 237-239
In principle, dendrochronology disapproves of heteroconnection, that is, the comparison of age-rings of different species for the purpose of dating. It seems, however that there exist extraordinary periods of vegetation whose strong climatic traits produce an effect, be it favorable or unfavorable, which is identical for the age-rings of all species. Identification of these equalconsequent years has made it possible to date sample of cembra pine from the Grindelwald glacial moraine by referring to the chronology of Ernst Hollstein's oaks from west of the Rhine. This dating seems indisputable, having been also confirmed by the radio-carbon method. Heteroconnection is thus possible if certain conditions are respected. It is necessary to remain within a given climatic region, work with a sample of at least 200 age-rings and make sure the data include at least 20% equalconsequent years.
3 pages
Source : Persée ; Ministère de la jeunesse, de l’éducation nationale et de la recherche, Direction de l’enseignement supérieur, Sous-direction des bibliothèques et de la documentation.

Sujets

• Sociologie, société et politique

Informations

• Publié par: ANNALES_ECONOMIES_SOCIETES_CIVILISATIONS
• Publié le: 01 janvier 1977
• Nombre de lectures: 36
• Langue: Français

Extrait

Pierre Martin

Dendrochronologie et bois fossile : un essai de datation par

hétéroconnexion

In: Annales. Économies, Sociétés, Civilisations. 32e année, N. 2, 1977. pp. 237-239.

Abstract

In principle, dendrochronology disapproves of heteroconnection, that is, the comparison of age-rings of different species for the

purpose of dating. It seems, however that there exist extraordinary periods of vegetation whose strong climatic traits produce an

effect, be it favorable or unfavorable, which is identical for the age-rings of all species. Identification of these "equalconsequent"

years has made it possible to date sample of cembra pine from the Grindelwald glacial moraine by referring to the chronology of

Ernst Hollstein's oaks from west of the Rhine. This dating seems indisputable, having been also confirmed by the radio-carbon

method. Heteroconnection is thus possible if certain conditions are respected. It is necessary to remain within a given climatic

region, work with a sample of at least 200 age-rings and make sure the data include at least 20% equalconsequent years.

Citer ce document / Cite this document :

Martin Pierre. Dendrochronologie et bois fossile : un essai de datation par hétéroconnexion. In: Annales. Économies, Sociétés,

Civilisations. 32e année, N. 2, 1977. pp. 237-239.

doi : 10.3406/ahess.1977.293812

http://www.persee.fr/web/revues/home/prescript/article/ahess_0395-2649_1977_num_32_2_293812