Approche des oscillations climatiques entre 135 000 BP et le maximum glaciaire par analyse des périodicités et implications
Metadatas
1986
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Keywords
Hierarchy ; Climatic oscillations ; Periodicities ; Gap ; Threshold ; Damping ; Smoothing ; Boundaries. Seuil ; Amortissement ; Lissage ; Hiérarchie ; Limites. ; Oscillations climatiques ; Périodicités ; LacunesSimilar subjects
Disputes, Boundary Frontier troubles Borders Frontiers (Boundaries) Geographic boundaries Boundary disputes Territorial boundaries Political boundaries Glaciated terrain Methods of analysis Analysis and chemistry Analytical methods Chemical analysis Analysis methods Analysis and examination Relieve glaciar BP Hiérarchies Relief glaciaire Glaciaire Modelé glaciaire Limites administratives Analyse chimique DosageCite this document
Christine Duchadeau-Kervazo et al., « Approche des oscillations climatiques entre 135 000 BP et le maximum glaciaire par analyse des périodicités et implications », Quaternaire, ID : 10.3406/quate.1986.1795
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Abstract
A diagram representing climatic oscillations occurring over the last 35 millenia was mathematically decomposed into a sum of sinusoïdes and projected to 135,000 B P. The differences between the theoretical profile obtained in this manner and interpretations using the study of continental sediments, can be explained by erosions, slowing down or breaks in sedimentation, and by pedogenesis. In each case, questions arise as to the hierarchical positions of the oscillations, and the amplitude of boundaries at 115 and 75,000 B.P.