536 



CONTRIBUTIONS TO THE GEOLOGY OF BENGUELLA. 



Fig. 6. Section from Huambo to Ochilesa. Approximate average direction south-west to north-east. 

 (Scale: Vertical, 1" = 1250 feet; horizontal, 1" = 15 miles.) 



Shonkinite, etc. 



S (Lavas and dykes. 

 Dolerite'?. 



| CC | Charnockite. 

 Diorite. 



A Granite. 



Schistose quartzite. 





5 S S I Gneiss. 



Fig. 7. Section from the Bulu-Vulu to the Umbal near Cambenge. (Scale: Vertical, 1" = 1000 feet; 

 horizontal, 1" = 1 mile.) 



Bihe Sandstones. 



^v\\] Schistose quartzites. 



| V\\| Gneiss. 

 Fig. 8. Section along the track to Candumbo, east of Huambo. (Scale: Vertical, 1"=1000 feet; 



horizontal, 1" = 3 miles.) 



Sandstones (age undetermined). 



A f[ | Granite. 



Fig. 9. Geological sketch-map of part of Angola. 



KH 



CC 



OS Dombe Sandstones. 

 :0-$ - : r Bihe Sandstone. 



m 



Oendolongo and Lepi Series in Benguella 

 and Cuanza Series in Loanda. 

 H — — I Gneiss, schist, schistose and granular 

 I ' J quartzites. 



A A Granites intrusive in the Swazi System. 

 Vo. Alkaline igneous rocks. 



Kainozoic. 



Cretaceous. 



? Trias. Lualaba beds. 



1 Trias. Lubilash beds. 



Lower Palaeozoic or Upper Eozoic, 



Transvaal System. 

 Lower Eozoic, Swazi System. 



| Vb I Basalt. 

 \J^ Trachyte. 



Probably Kainozoic. 



