Fig. 5: Grain size distribution of 100-500 μm grains from the surface samples on the Laptev Sea, East Siberian Sea and Chukchi Sea. | Nature Communications

Fig. 5: Grain size distribution of 100-500 μm grains from the surface samples on the Laptev Sea, East Siberian Sea and Chukchi Sea.

From: Arctic zircon U-Pb ages reveal multiphase glaciations in East Siberia during the late Quaternary

Fig. 5

The vertical scale shows frequency per 10 μm bin normalized to total sand fraction (> 63 μm). The gray histogram in the background of each sample represents the averaged grain size distribution from all sand-rich ice-rafted debris (IRD) samples in cores LV90-8-1 and LV90-9-1 (Fig. S7). Grains larger than 250 μm account for 5% to 42% ( ~ 12% on average) in the sand fraction of IRD samples (Figs. S5 and S7), but less than 2% in almost all surface samples, except a near shore sample LV77-16. Grain size data of surface samples are from Ref. 81.

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