ON SOUTH AFRICAN STRATA. 



129 



Representatives of the Karroo Series in Rhodesia were arranged as 

 follows by Mr. Molyneux in 1907 : — 



Cape 



Karroo 

 System 



Stormberg 

 Beaufort . 



Ecca 



Bechuanaland 

 Protectorate 



Dolerites . 



Fine sandstones 



at Klaballa 

 Tswapong grits . 



Rhodesia 



Sabi and Limpopo 

 Valleys 



Tuli lavas and Pipe 



amygdaloids 

 Samkoto series . 



Zambesi Valley 



Batoka basalts and 



Dolerite sheets 

 Forest sandstones 



Escarpment grits 

 Upper Matobola 

 Busse beds 

 Lower Matobola 

 Fine fissile sandstones 



This sequence is so different from that of the southern States that 

 at present it would be premature to suggest a detailed correlation, and 

 no inconvenience arises from the use of the independent classification. 



The classification for Natal, adopted by Mr. Anderson in his final 

 Report (1907), is as follows: — 



Upper Karroo 



Lower Karroo 



f Plateau basalts, top Drakensberg and Rhyolitio 

 series of the Lebombo Range in Zululand. 

 v Cave sandstones, Drakensberg. 

 Red beds, Drakensberg. 

 Stormberg series, Drakensberg. 



(Beaufort beds, 

 p . f Upper, coal-bearing series. 



\ Lower, shales (glacial). 

 Ecca glacial conglomerate (Dwyka). 1 



There has been no representative of Orangia on the Committee, arid 

 the representatives of the Transvaal have not called special attention to 

 the classification of the Karroo beds, which have not yet received as 

 much attention in the Transvaal as in the other States. 



The Committee have received an interesting report from Professor 

 Broom as to the correlation of the rocks of the Karroo, and the evidence 

 quoted makes it clear that part of the system is to be correlated partly 

 with the Permian and partly with the Lower Mesozoic (Trias and Jura). 



1 W. Anderson : Third and Final Report of the Geological Survey of Natal and 

 Zululand. Natal Surveyor- General's Department, London. 1907, p. 36. 



1910. 



