Mots-clés
Analyse des groupes Analyse pollinique Etats-Unis Faune fossile Insecte Paléo-environnement Pennsylvania Pléistocène Quaternaire Variation climatique Climatic variation Cluster analysis Fossil fauna Insect Palaeo-environment Pennsylvania Pleistocene Pollen analysis Quaternary United States of AmericaFossil beetle evidence for a short warm interval near 40,000 yr B.P. at Titusville, Pennsylvania
Auteur(s) et Affiliation(s)North Dakota State University, Quaternary Entomology Laboratory, Fargo, North Dakota, Etats-Unis
Description :
A brief cold-warm-cold climate change during the middle Wisconsinan is described for the first time in North America, based on fossil beetle assemblages at Titusville, Pennsylvania. AMS dating of insect chitin and wood suggests the change occurred between 39,000 and 43,500 yr B.P. These data are correlated with other data to obtain a better understanding of middle Wisconsinan paleoclimate in northeastern United States.
Type de document :
Article de périodique
Source :
Quaternary research, issn : 0033-5894, 1996, vol. 45, n°. 2, p. 216-225, Collation : Illustration, Références bibliographiques : 43 ref.
Date :
1996
Editeur :
Pays édition : Etats-Unis, San Diego, CA, Elsevier
Langue :
Anglais
Anglais
Droits :
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)
Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI)