392 



W. M. DAVIS OBSERVATIONS IN SOUTlt AFR±CA 



A view of the same ridge, shown in natural section on the eastern side 

 of the notch cut by Buffels river, is given in figure 5, looking northeast. 

 This was drawn from a knob near the letters TT of "Wrinkled Witte- 

 berg" in figure 2, about 2 miles west of the notch. A notable feature of 



t 



J: 



V 





Figure 5. — Eastern Wall of Buffels River Notch. 



The notch is in the southern Witteberg ridge, looking northeast. Three anticlines and 

 three synclines are here seen, truncated by the northern slope of the ridge. 



the view is the repetition of a certain band of whitish quartzitic sand- 

 stone in three anticlines and three synclines, across which the northern 

 face of the ridge is indifferently beveled. The same band of sandstone is 

 seen in a local ridge in the distance, where it rises north of the longi- 



Figure 6. — Southern Slope of the southern Witteberg Ridge. 



A lowland of Bokkeveld strata is in the middle distance and the Klein Zwartberg, a 

 strong anticline of Table Mountain sandstones, in the distance. The gorges of Buffels 

 river are seen on the left in the foreground and background (see note in text). 



tudinal synclinal valley and lies on the back slope of the next anticlinal 

 ridge. A photographic view showing part of these features, taken from 

 the floor of Buffels Eiver gorge, is reproduced in plate 48, figure 1. 



