
and the symbol d13C is used to represent

Similarly, the symbol o/oo denotes parts per thousand, which would be represented by the symbol

if it were available in the ISO character set.
U.S. Department of Interior, U.S. Geological Survey
URL of this page: https://pubs.usgs.gov/openfile/of93-683/4-geochem/3-isotope/note.html
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Last modified: 03.01.01 (krw)