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The graph shows the alignment of planktonic and benthic oxygen isotope stratigraphies from MD-952042, with ice core records from Greenland and Antarctica, which have been synchronised using their shared atmospheric methane records. See: N J Shackleton, Science vol 291, p58-59, and N J Shackleton, M A Hall, E Vincent, Paleoceanography 15, p565, 2000.

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Figure 2: Atmospheric methane measured in ancient air bubbles in Greenland ice


Figure 3: Deuterium isotope record from Vostok ice core reflecting Antarctic air temperatures


The alignment of planktonic and benthonic oxygen isotopes stratigraphies from MD95-2042 with ice core records from Greenland and Antactica. N J Shackleton, Science, vol 291, p58-59, 2001 and N J Shackleton, M A Hall, E Vincent, Paleoceanography 15, p. 565, 2000

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