Here we use counts of ice-rafted debris (IRD counts) mass-accumulation rates (MAR) (counts/cm²/ka), in combination with mass-accumulation rates of terrigenous leaf wax biomarkers synthesized by land plants (long chain n-alkanesMAR; mg/m²/a) from the Chilean margin which provide us information on past extent of the Patagonian ice-sheet over the past 790 000 years.IRD counts are presented as the concentration of lithic grains, defined as the number of grains with diameters greater than ~0.5 mm. IRD was defined as the total number of lithogenic/terrigenous grains in the carbonate‐free fraction. Processed X-ray images were used to estimate IRD abundance per X- ray image. Each image integrates 12 cm of core, and IRD concentration was obtained for the central depth of the image. Mass accumulation rate (MAR) was calculated by multiplying the concentration of the compounds (ng/g sed.), by the Dry bulk density (DBD) (g/cm³), and the sedimentation rate (m/ka).