Auxiliary Material Submission for Paper 2012PA002398
Response of Iberian Margin sediments to orbital and suborbital forcing over the past
420 ka
David Hodell
(University of Cambridge, Cambridge, UK)
Paleoceanography xx, doi:10.1029/2012PA002398, 2013
Introduction
Auxiliary material for this article contains 22 figures. Figures S8 through S22 are
the cross spectra used to calculate the coherence and phase between each
variable and ETP (Table 1 and Figure 11).
Figure S1. Age-depth control points and sedimentation rates for Cores MD012443 and -2444. The two cores were spliced at 27.42 mbsf in MD01-2444
and 16.74 mbsf in Core MD01-2443, equivalent to an age of ~194 ka
Figure S2. Ca/Ti (blue) fitted using a weighted Least Squares error (Lowess)
method (red) to suppress long-term trends. Residual Ca/Ti (black) curve
was produced by subtracting the weighted curve value at each data point.
Figure S3. Variations in sediment color including L* (lightness; black line), a*
(red-green; red line), and b* (blue-yellow; blue line).
Figure S4. Power spectra and coherency for a* (blue) and first derivative of color
reflectance at 570-560 nm (red). Both records contain significant power at
precession (19-23 kyr) and eccentricity (100 kyr) periods.
Figure S5. Comparison of variations in the first derivative of color reflectance at
570-560 nm (red) and the environmental magnetic S-ratio (blue) used to
estimate the concentration of antiferromagnetic minerals (hematite and
goethite).
Figure S6. Comparison of a* (red-green) on the Iberian Margin with XRF counts
of Fe (blue) in Core GeoB-4205 off NW Africa [Bozzano et al., 2002], which
have been interpreted as a proxy for African dust.
Figure S7. Comparison of hematite proxy (570-560 nm) and C26OH/(C26OH+C29)
ratio.
Figure S8. Comparison of C26OH/(C26OH+C29) ratio and precession index.
Figure S9. Comparison of C26OH/(C26OH+C29) ratio and bromine counts, a proxy
of organic matter.
Figure S10. Cross spectrum of ETP and a* (Iberian Margin).
Figure S11. Cross spectrum and phase of ETP and 570-560 nm (Iberian Margin).
Figure S12. Cross spectrum and phase of ETP and C26OH/(C26OH+C29) ratio
(Iberian Margin).
Figure S13. Cross spectrum and phase of ETP and benthic 18O (Iberian Margin).
Figure S14. Cross spectrum and phase of ETP and planktic 18O (Iberian Margin).
Figure S15. Cross spectrum and phase of ETP and Ca/Ti (Iberian Margin).
Figure S16. Cross spectrum and phase of ETP and alkeonone SST (Iberian
Margin).
Figure S17. Cross spectrum and phase of ETP and benthic 13C (Iberian Margin).
Figure S18. Cross spectrum and phase of ETP and Antarctic (EDC) temperature.
Figure S19. Cross spectrum and phase of ETP and Antarctic (EDC) CO2.
Figure S20. Cross spectrum and phase of ETP and Antarctic (EDC) CH4.
Figure S21. Cross spectrum and phase of ETP and Site 1123 deep-ocean
temperature derived from Mg/Ca.
Figure S22. Cross spectrum and phase of ETP and Site 1123 18Owater derived
from deconvolution of benthic 18O using Mg/Ca.