Into the freezer: Cenozoic glaciation

The Cenozoic onshore record is best known from the Sirius Group in the Transantarctic Mountains, although there is considerable controversy as to the age of these sediments. This bedding surface within diamictite on Roberts Massif (85oS) shows strong alignment (parallel to hammer) of striated clasts in a fine matrix,suggesting the sediment was deposited as basal till.

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