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Figure F4. Magnetic susceptibility (gray), gamma ray attenuation (GRA) density (dark green), Ca/Sr (red) and Si/Sr (blue) from XRF scanning, and bulk carbonate δ18O (black) and benthic δ18O (light green, with glacial MIS labeled) for the last 1.4 m.y. Detrital carbonate layers, marked by peaks in Ca/Sr, first occurred in MIS 16 at ~640 ka. Figure from Hodell et al. (2008).

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