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Victoria University Antarctic Research Expedition Science and Logistics Reports 1981-82: VUWAE 26

[section]

Twenty-one granite samples (several Kg each) were collected for fission-track dating at various elevations in the lower Wright Valley and along the McMurdo Sound coast between Gneiss Point and Spike Cape.

Field observations suggest that step faulting on a number of different faults may be important in controlling the eastern front of the Transantarctic Mountains in this area (Fig. 9). Fission-track ages of apatites from these samples were reported at the Fourth International Symposium on Antarctic Earth Sciences, and confirm the step-like nature of the faulting. They also indicate a steady uplift rate of 15m/m.y. throughout the Mesozoic (Gleadow, 1982).