THE CRETACEOUS SYSTEM 305 



formed by the Langebergen. and the southern in part 

 by the coast between Mossel Bay and Great Brak 

 River, and, west of Mossel Bay, by the Bokkeveld and 

 Table Mountain series. North of Mossel Bay the 

 George granite and the highly altered Malmesbury beds 

 project far into the area of Uitenhage beds, dividing its 

 eastern end into two tongues which join west of the 

 main road to Robinson's Pass. The Uitenhage beds 

 thus rest upon granite, Malmesbury beds, Table 

 Mountain sandstone, Bokkeveld and Witteberg beds at 

 different places ; it has been noticed that, to a certain 

 extent, the pebbles and boulders, for the included blocks 

 reach a length of more than eighteen inches in the con- 

 glomerates, came from the rocks that are close at hand 

 rather than from those forming the mountains. Thus 

 in the Ruitersbosch Valley there is a large proportion 

 of granite boulders in the conglomerates which are well 

 exposed round the western end of the George granite. 

 Near Bottle's Kop, that curiously shaped hill of quartz- 

 ite and quartz schist (probably belonging to the Table 

 Mountain series), which is so conspicuous to the north 

 of the Mossel Bay-George road, the conglomerate con- 

 tains many fragments of the quartzitic rock. Along 

 Weyer's River, and generally along the western border 

 of the conglomerate, pebbles derived from the Bokkeveld 

 beds are very abundant. At Cape St. Blaize the con- 

 glomerate is represented only by a very thin layer of 

 breccia, composed of angular fragments of the under- 

 lying Table Mountain sandstone. Along the northern 

 boundary Table Mountain sandstone pebbles are by far 



the most abundant, and this is also the case in the con- 



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