Representative lithologies of morainic debrisThe debris represented here comprises samples of the sea floor. It includes both local late Cenozoic volcanic material from adjacent Minna Bluff and also far-travelled material carried by a grounded glacier in much earlier times. The latter mainly comprises granite and metamorphic rocks of Early Palaeozoic age, with minor amounts of Late Palaeozoic Beacon Sandstone and possibly Eocene conglomerate. This set illustrates relatively fresh clasts of local and distal origin, including lithologies from the Transantarctic Mountains, mostly showing signs of transport at the bed of a grounded glacier. | |||
 Coarse-grained sandstone with faceted surface (from the Transantarctic Mountains). |  Coarse-grained sandstone with striations, indicative of former basal glacial transport (from the Transantarctic Mountains). |  Stratified sandstone with cross-bedding from the Beacon Supergroup (from the Transantarctic Mountains). |  Sandy conglomerate of possible Eocene age (local). |
 Agglomerate from the McMurdo Volcanics (local). |  Orange-weathered tephra from the McMurdo Volcanics (local). |  Pale-weathered vesicular basalt (probably local). |  Red granite (from the Transantarctic Mountains). |
 Fine-grained white granite (from the Transantarctic Mountains). |  Close-up of white granite with xeonolith (from the Transantarctic Mountains). |  Granite-gneiss with xenolith (from the Transantarctic Mountains). |  Grey-white banded gneiss (from the Transantarctic Mountains). |
| Photos Michael Hambrey, November and December 2010. | |||