C. PALAEOMAGNETISM

This year an extensive collection of orientated rock samples for palaeomagnetic studies was planned. It included samples from the upper and lower dolerite sills, the feeder dikes, the acid and basic dikes intruding the basement granite, the finer grained red and green bands interbedded in the Beacon sandstone and the dolerite instrusions in the latter.

The collection was successfully completed as far as possible, about 150 orientated samples being taken.

Unfortunately no interbedded red and green bands were found in the Beacon sandstone of the Victoria Dry Valley area, although approximately 3500 feet vertical extent was covered in several localities. Consequently this part of the collection could not be made.