110 Professor T. Riqoert Jones — Geology of W. Swaziland. 



T A, as parts of the same syncline. Further on, Section Z, divisions 

 D, 0, B, and A, conformably succeed, the last resting against gneiss 

 and granite. 



In Section X, its eastern divisions G and f are the equivalents of 

 Tb and A, and these are succeeded by the equivalents of Z d, c, b, 

 and A, in succession, as far as the granitic rocks on the west. It thus 

 constitutes the western portion (about 15,500 feet, less than three 

 miles) of the syncline, the diameter of which is about 45,000 feet, 

 or about 8^ miles. 



The strike of the schistose rocks on the eastern side of the syncline 

 of Ingwenya Berg, if continued, would lead them into the Kaap 

 Eiver Goldfield, as part of Schenck's Swaziland schists. 



Mr. Eyan has discovered a place where the natives in ancient 

 times made their stone implements by chipping, the relics of flakes 

 being there in abundance. This locality is on the north-west face 

 of the Makonjwa Eange, which is a northern continuation of tlie 

 Ingwenya Berg. It is shown in Mr. Eyan's map of the district as 

 being on the eastern border of the Kaap Eiver Goldfield, and about 

 six miles south-east of Barberton, where more or less dressed flakes 

 of black siliceous schist, together with others, have been found. 



/^Section X (Fig. 3). 



A, 97-103. Micaceous, hornblendic, and actinolitic schists = Za 



B, 104-106 and 124. Talcose schists. 'Auriferous' =Zb 



Swazi Border, Custom House. 



c, 107-111. Quartz -schist and gneiss = Zc 



I Base metal line. 



(112-123. Quartzite and quartz-schists, some talcose =Zd 



F, 128-131 and 125-127. Micaceous quartz -schist, phyllite, and 

 haematite ... ... ... ... ... ... ... =Ta 



G. (No specimens.) ... ... ... ... ... ... ... =Tb 



Section T (Fig. 2). 



Swazi Border. 

 A, 38-56. Black siliceous schist (lydite), banded with quartz-schist, 



argillaceous schist, talcose, micaceous, and hornblendic schists = X f 

 (Black rock, marked 'A.' 

 (57-82. Argillites, siliceous schists (some black), micaceous schists, 



and banded quartzite, jasper, and haematite ... ... =Xg 



(Red jasper, marked ' B b.' 



(83-96. Siliceous grit and breccia, lydianized = " conglomerate " band in 

 Fig. 1. 



( 

 Here is a repetition of T c, T b, and T a, in part of the eastern limb of the 

 syncline. 



W 



Section Z (Fig. 2). 



^ |35, 36, 17-19, 37, and 34. Talc -schist and quartzite =Xd 



(Base metal line. 



c, 31, 16, 32, 33. Micaceous schist and decomposed gneiss =Xc 



Forbes Beef — auriferous. 

 b, 7-10, 30, 12-15. Serpentine and serpentine-schists. 'Auriferous' =Xb 



A, 4-6 and 11. Quartzite and mica- schist (No. 4) = Xa 



^1, 1, 2, 3. Gneiss (fine- and coarse-grained) = X ' Granite.' 



