Figure F12. Time serial variation of natural gamma ray (NGR) intensity in Hole 1150D with bandpass filtered components and orbital parameters by Laskar (1993). A. Sedimentation rate (L = low sedimentation rate stage, H = high sedimentation rate stage). B. NGR intensity. C. 20-k.y. bandpass filtering of NGR components. D. Precession index (Laskar, 1993). E. 41-k.y. bandpass filtering of NGR components. F. Obliquity (Laskar, 1993). G. 100-k.y. bandpass filtering of NGR components. H. Eccentricity (Laskar, 1993). I. Power spectral density (PSD) of NGR intensity in each L or H interval (E = periodic components in eccentricity band, O = periodic components in obliquity band, P = periodic components in precession band).