Figure F6. Records of terrigenous detrital element contents and elemental ratios. A. Comparison of SiO2 (cfb) and Al2O3 (cfb) contents with Si/Al ratio, TiO2 (cfb) content, and K2O (cfb) content. B. Comparison of major element records (Ti/Al and K/Al ratios) with trace element aluminium ratios (Cr/Al, Rb/Al, and Zr/Al). The index cfb indicates that the contents were calculated on a carbonate-free basis (see "Material and Methods"). Bold lines indicate the 50-point running average value.

Figure F6. Records of terrigenous detrital element contents and elemental ratios. A. Comparison of SiO₂ (cfb) and Al₂O₃ (cfb) contents with Si/Al ratio, TiO₂ (cfb) content, and K₂O (cfb) content. B. Comparison of major element records (Ti/Al and K/Al ratios) with trace element aluminium ratios (Cr/Al, Rb/Al, and Zr/Al). The index cfb indicates that the contents were calculated on a carbonate-free basis (see "Material and Methods"). Bold lines indicate the 50-point running average value.