Fig. 3: Reconstruction of the path of the erosion channel along the glacial unconformity at Boulder Clay Glacier.
From: A warming pulse in the Antarctic continent changed the landscape during the Middle Ages
Reconstruction of the path of the erosion channel (yellow dotted line on the left). On the right portions of GPR profiles from North to South imaging the channel (yellow solid line) and the glacial unconformity (red dotted line), both cutting the underlying dipping glacial strata. Red dots mark the borehole locations, while elevations (m asl) refer to the deepest point of the erosion channel at each location. Blue dashed line follows the top of the till. The left panel has been produced using: Basemap © Google, Maxar Technologies (photograph taken on 4th November 2014).
