Past temperature and δ18O of surface ocean waters inferred from foraminiferal Mg/Ca ratios

@article{Elderfield2000PastTA,
  title={Past temperature and δ18O of surface ocean waters inferred from foraminiferal Mg/Ca ratios},
  author={Harry Elderfield and Gerald M. Ganssen},
  journal={Nature},
  year={2000},
  volume={405},
  pages={442-445}
}
Determining the past record of temperature and salinity of ocean surface waters is essential for understanding past changes in climate, such as those which occur across glacial–interglacial transitions. As a useful proxy, the oxygen isotope composition (δ18O) of calcite from planktonic foraminifera has been shown to reflect both surface temperature and seawater δ18O, itself an indicator of global ice volume and salinity. In addition, magnesium/calcium (Mg/Ca) ratios in foraminiferal calcite… CONTINUE READING
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