The Sutherland Volcanic Pipes. 



75 



(2) Vents occupied partly by melilite-basalt or glassy lava and 

 partly by agglomerate or tuff. In this class are the large vent 



-t- *f "b -fr- 4* -v ^. 



TV,/ 



3eft?(yp7-/" beds- 



Fig. 4. 

 Plan of agglomerate and dolerite at Blaauw Blommetjes Keep. 



and some of the smaller ones on the commonage, and the Matjes 

 Fontein pipe. 



6 



