Granite Dolerite 
GRANITES OF THE KUKRI HILLS. 
37 
When the Kukri Hills are observed from Knob Head Mountain, or from the 
summit of Descent Pass, they present an almost sheer wall facing south. This wall is 
broken at regular intervals by glaciers, which usually occupy hanging valleys. At the 
mouth of each valley there is a well-marked junction of dark- colon red and light- 
coloured rock, and in places the colours alternate regularly as before. The hill D 
contains a straight yellow band near its summit which is formed by a dark rock. The 
yellow band continues towards the east, and gives to the hill Dj a tabular outline. 
On the hill D., it is only represented by a small outlier. Below this yellow band on 
Fig. 18. — The Horizontal Upper Surface of the Granite on the south side of the Kukri Hills. 
the hill Dj there is a horizontal black band about 1000 feet thick, wdrich appears to be 
part of the dolerite of D, and this black band extends eastwards beneath the yellow 
outlier of D 2 . Below the black band there is an attenuated wedge of yellow rock, 
which begins about the middle of the cliff D ls and, rising slightly, reaches the top of 
the cliff-face a little to the east of D». This yellow wedge shows prominent joint-planes 
which dip to the east, and appears to weather in quite a different way to the outliers 
on the summits of D, and D 2 . It is possible that this is part of the intrusive granite 
of the promontory D. Below this again is a second dark band, which was subsequently 
proved to consist of dolerite (704). This, too, is a part of the D mass, and maintains 
