Fig. 4: Astronomical calibration of the PLG. | Nature Communications
a Sediment accumulation rate (SAR) curve based on 405-kyr tuning (pink); b δ18O (orange); c logarithmic-scale magnetic susceptibility (MS) data with linear interpolation and detrending linear (black line) and 405 kyr filter output (green line); d La2004 orbital solutions39 for the eccentricity cycles of ~100 kyr (blue line) and ~405 kyr (red line); e data calibrated by long eccentricity (purple). The gray bands highlight the Selli, Wezel, Fallot, 113/Jacob and Kilian Levels and the blue band represents the cold snap interval. Formations, lithology and planktonic foraminiferal zones11,32,45 and this work, calcareous nannofossil zones (this work), polarity33 and stage (this work) for the PLG core. M. Microhedbergella, ris. rischi, min. miniglobularis, P. Paraticinella, H. Hedbergella, G. Globigerinelloides ferr. ferreolensis, L. Leupoldina. E long eccentricity (red bundles), e short eccentricity (yellow bundles), O obliquity (blue bundles), P precession (purple bundles).