http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
tracer of ocean productivity and a recorder of isotopic compositions of seawater S, O, Sr, Ca, and Ba
Weiqi Yao, Elizabeth Griffith, Adina Paytan.
Elements in geochemical tracers in Earth system science