Extended Data Fig. 5: Cross-spectral comparison of the s.d. of four elemental ratios with LR04 stack and ETP. | Nature Geoscience

Extended Data Fig. 5: Cross-spectral comparison of the s.d. of four elemental ratios with LR04 stack and ETP.

From: Persistent orbital influence on millennial climate variability through the Pleistocene

Extended Data Fig. 5: Cross-spectral comparison of the s.d. of four elemental ratios with LR04 stack and ETP.

Spectral results (brown) of the STDs of (a) U1308 Si/Sr-s.d. (b) U1385 Ca/Ti-s.d. (c) LO Ca/K-s.d. (d) GL Fe/K-s.d. and their coherency spectra vs. LR04 stack36 (blue) and ETP48 (pink). Spectral density is normalized and plotted on a log scale. Grey bars indicate dominant orbital peaks at the 100-, 41-, 23- and 19-kyr periods. Coherence spectra are plotted above 80% confidence level.

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