Matches in DBpedia 2016-04 for { ?s ?p "The Dole effect, named after Malcolm Dole, describes an inequality in the ratio of the heavy isotope 18O (a \"standard\" oxygen atom with two additional neutrons) to the lighter 16O, measured in the atmosphere and seawater. This ratio is usually denoted δ18O.It was noticed in 1935 that air contained more 18O than seawater; this was quantified in 1975 to 23.5‰, but later refined as 23.88‰ in 2005. The imbalance arises mainly as a result of respiration in plants and in animals."@en }
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- Dole_effect comment "The Dole effect, named after Malcolm Dole, describes an inequality in the ratio of the heavy isotope 18O (a \"standard\" oxygen atom with two additional neutrons) to the lighter 16O, measured in the atmosphere and seawater. This ratio is usually denoted δ18O.It was noticed in 1935 that air contained more 18O than seawater; this was quantified in 1975 to 23.5‰, but later refined as 23.88‰ in 2005. The imbalance arises mainly as a result of respiration in plants and in animals.".