McMurdo Ice Shelf, Antarctica

Weathering of morainic debris

This set of images shows the weathering characteristics of debris in progressively older moraines.

Weathering of morainic debris
Weathering characteristics of a boulder showing exfoliation.
Weathering of morainic debris
Dolerite boulder being attacked by salt weathering.
Weathering of morainic debris
Porphyritic felsite cobble disaggregated by frost action along joints.
Weathering of morainic debris
Sandstone boulder disaggregated by frost action along bedding planes.
Photos Michael Hambrey, November and December 2010.