KnowraOxygen isotope ratioLinked fromLinked fromThe 28 pages that link to Oxygen isotope ratio, each with the reason it gives.All 28Broader topic 3Related 23Narrower topic 2Marine isotope stagesNarrower topic: Stage boundaries and patterns are identified through changes in this measured ratio.δ18ONarrower topic: δ18O expresses this ratio as a deviation from a reference.