Fig. 3 | Nature Communications

Fig. 3

From: The silicon cycle impacted by past ice sheets

Fig. 3

Geological map of the Arctic with past ice sheet extent. a Arctic Polar Stereographic map with maximum palaeo-ice sheets extent (~21,000 years ago) indicated by a thick black line17, and insert (b) of the Leverett Glacier region (indicated by a red square on the west coast of Greenland in (a)) where samples were taken. The estimated Leverett Glacier catchment84 is shown in b by the filled grey area. Reproduced with the permission of OneGeology. Map created using QGIS

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