<b>Glacial lineations</b> (sub-parallel furrows) formed by grounded ice streams and iceberg scours (randomly orientated furrows) on the outer shelf (620-720 m water depth) of Pine Island Bay in the Amundsen Sea, Antarctic. These bedforms give evidence for the expansion of the Antarctic Ice Sheet onto the shelf during glacial periods and for the subsequent break-up of its expanded part at the transition to an interglacial. It also gives an impression about the continous physical distruction the benthos fauna on polar shelf areas is faced with. The features were mapped during Polarstern cruise ANT-XXIII/4 in 2006.
Gauger, S. et al./AWI
CC BY 3.0
Gohl, K. (ed)(2006). The Expedition ANTARKTIS-XXIII/4 of the Research Vessel Polarstern in 2006, Reports on Polar and Marine Research, 557, 166 pp, <a rel="nofollow" class="external text" href="http://hdl.handle.net/10013/epic.27102.d001">hdl:10013/epic.27102.d001</a>, pdf 35 MB.