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La Mesure des Variations Climatiques Continentales Application à la Période Comprise entre 130.000 et 90.000 Ans B. P.

Published online by Cambridge University Press:  20 January 2017

J.C. Duplessy ,
J. Labeyrie ,
C. Lalou  and
H.V. Nguyen
J.C. Duplessy
Affiliation:
Centre des Faibles Radioactivités, Centre National de la Recherche Scientifique, (91) Gif-sur-Yvette, France
J. Labeyrie
Affiliation:
Centre des Faibles Radioactivités, Centre National de la Recherche Scientifique, (91) Gif-sur-Yvette, France Service d'Electronique Physique, Centre d'Études Nucléaires de Saclay, (91) Gif-sur-Yvette, France
C. Lalou
Affiliation:
Centre des Faibles Radioactivités, Centre National de la Recherche Scientifique, (91) Gif-sur-Yvette, France
H.V. Nguyen
Affiliation:
Centre des Faibles Radioactivités, Centre National de la Recherche Scientifique, (91) Gif-sur-Yvette, France Service d'Electronique Physique, Centre d'Études Nucléaires de Saclay, (91) Gif-sur-Yvette, France
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Abstract

Les mesures du rapport isotopique 18O/16O le long de l'axe de stalagmites soigneusement choisies donnent u̇n enregistrement climatique continental qui peut être comparé aux données de la paléoclimatologie océanique. Les âges des différentes couches de la stalagmite sont établis soit par la méthode du carbone 14 pour la période de 0 à 35.000 ans b.p., soit par le rapport 230Th/234U jusqu'à 300.000 ans b.p.

La validité de cette méthode est discutée et une application en est donée pour la période allant de 130.000 à 90.000 ans b.p.

Measurements of the isotopic ratio 18O/16O along the axis of carefully chosen stalagmites give a continental climatic record which can be compared to oceanic paleoclimatological data. Ages of stalagmite layers are established either by carbon 14 for the period 0 to 35,000 years b.p. or by 230Th/234U ratio until 300,000 years b.p.

The validity of this method is discussed and an application is given for the period 130,000 to 90,000 years b.p.

Type
Original Articles
Information
Quaternary Research , Volume 1 , Issue 2 , April 1971 , pp. 162 - 174
Copyright
University of Washington

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