Abstract

Sampling of granitoid rocks to determine the Late Mesozoic and Cenozoic uplift history of the Transantarctic Mountains was extended to the Beardmore Glacier region this season. Apatite fission track dating at the University of Melbourne will be used to determine uplift rates across the mountain range and position of faults at the mountain front. Samples were collected from both the north and south side of the lower Beardmore Glacier. Topographic features attributed to faulting here are an eastwards decrease in summit heights and the presence of escarpments, especially visible on the northern side of the Beardmore Glacier. Other areas sampled were the Queen Elizabeth and Miller Ranges on the inland side of the Transantarctic Mountains.