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| Description: H218O is fractionated during evaporation. Vapor is relatively enriched in 16O. Oceans are relatively enriched in 18O. Polar precipitation is relatively 18O depleted. Depletion varies with temperature in the atmosphere. There is less 18O as the atmosphere gets colder. Picture Stats: Views: 336 Filesize: 66.13kB Height: 438 Width: 771 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=36394 |