Lisiecki and Raymo (2005) used measurements of δ18O in benthic foraminifera from 57 globally distributed deep sea sediment cores, taken as a proxy for the total global mass of glacial ice sheets, to reconstruct the climate for the past five million years.
Lisiecki and Raymo (2005) utilized measurements of δ18O in benthic foraminifera from 57 globally distributed deep-sea sediment cores to reconstruct past climate conditions over the last five million years, utilizing glacial ice sheet mass as a proxy.