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Keywords from Image Description:
Dryas ngrip. en Younger dryas cold period also called Big freeze seen in NGRIP oxygen isotope curve which correlates with temperature fr la priode froide du nouveau dryas est ici visible dans la courbe en qui prsente une anomalie des teneurs en isotope de l'oxygne qu'on sait corrle la temprature extrieure de l'atmosphre ici dans