Home > Term: oxygen isotope ratio (18O)
oxygen isotope ratio (18O)
An expression for the ratio of the 18O to 16O atoms in a sample relative to a standard, defined as: δ18o = (18O/16O sample - 18O/18O standard)/ 18O/16O standard.
- Part of Speech: noun
- Industry/Domain: Natural environment
- Category: Coral reefs
- Organization: NOAA
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