Figure F3. Correlation of δ18O record of GISP ice core (red) to δ18O of Globigerina bulloides (black) in Core MD95-2042. Resulting correlation of Vostok δD (green) and benthic δ18O of Core MD95-2042 (blue) is based on methane synchronization. VPDB = Vienna Peedee belemnite, VSMOW = Vienna standard mean ocean water.
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