Fig. 3: Correlations of geological and marine isotope data with the timing of dune formation at the Cooloola Sand Mass and Fraser Island. | Nature Geoscience

Fig. 3: Correlations of geological and marine isotope data with the timing of dune formation at the Cooloola Sand Mass and Fraser Island.

From: Fraser Island (K'gari) and initiation of the Great Barrier Reef linked by Middle Pleistocene sea-level change

Fig. 3

Geological and marine isotope data adapted from ref. 23. The periods of dune activation represent the total spread of ages from each dune package, including uncertainties. Note, however, that dune package 1 (reversed polarity) and the base of dune package 2 (reversed polarity) are constrained by the age of the Matuyama/Brunhes boundary and must be older than 773 ka. The dashed horizontal line indicates the first noteworthy drop to –120 m sea level (MIS 22)17.

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