USGS · 70013811
Normalization of oxygen and hydrogen isotope data
Abstract
To resolve confusion due to expression of isotopic data from different laboratories on non-corresponding scales, oxygen isotope analyses of all substances can be expressed relative to VSMOW or VPDB (Vienna Peedee belemnite) on scales normalized such that the δ 18 O of SLAP is −55.5% relative to VSMOW. H 3 + contribution in hydrogen isotope ratio analysis can be easily determined using two gaseous reference samples that differ greatly in deuterium content.
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T.B. Coplen. 1988. Normalization of oxygen and hydrogen isotope data. https://doi.org/10.1016/0168-9622(88)90042-5
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