PRE-CAPE ROCKS OF SOUTH AND WEST OF COLONY 39 



Mountain series bounds the area on the north, and the 

 southern limit is formed by the conglomerates of the 

 Uitenhage series between Meiring's Poort and Calitz- 

 dorp, a distance of fifty miles ; west of Calitzdorp the 

 sandstones of the Table Mountain series overlie the 

 Cango beds along their southern limit, and farther west 

 again the sandstone is faulted down against them, the 

 fault being so formed that its throw increases and 

 brings the Bokkeveld beds into contact with the Cango ; 

 some miles east of Meiring's Poort, also, the Bokkeveld 

 beds are faulted down against the Pre-Cape rocks, and 

 there can be no doubt that this fault, exactly comparable 

 to the Worcester fault, is continued westwards under 

 the covering of Uitenhage beds at least as far as Calitz- 

 dorp, and is probably continuous with that already 

 mentioned west of the village (see Figs. 4 and 5). 



Along almost the whole length of the northern 

 boundary the Table Mountain series dips at a high angle 

 southwards below the Cango beds, and the latter dip at 

 approximately the same angle in a southerly direction. 

 At the south end of the Gamka Poort, where there is 

 one of the very few clean-cut sections of the junction of 

 the two formations, there appears to be a conformable 

 passage between the two. At other spots, however, 

 such as the south end of Meiring's Poort, the Table 

 Mountain series dips steeply to the north, and lies un- 

 conformably upon the older beds which dip at a still 

 higher angle to the south ; the contact of different 

 members of the Cango beds with the base of the Table 

 Mountain series at various points corroborates the evi- 

 dence of the Meiring's Poort section, so there is no 



