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| Description: - Scientists determine oxygen ratios for ice cores obtained from the Greenland and Antarctic ice sheets and from alpine glaciers at lower latitudes. - Ice cores are used to obtain temperature data from isotope ratios, and provide information on the past chemistry of the atmosphere and on the incidence of past volcanic eruptions. Picture Stats: Views: 315 Filesize: 61.1kB Height: 446 Width: 594 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=31074 |