SON PLATEAU. 213 



The hill sidoj fmrn the speckled sandstone outcrop downwards, is 



covered with debi-is in places, and where it is 

 Nali. 



steeper, the rocks are found displaced, a dyke- 

 like mass of the red marl being- enclosed by parts of the purple sand- 

 stone on each side. Westward of this villag-e of Niili much confusion 

 prevails on account of this dislocation. A talus of debris conceals all 

 the beds immediately below the nuramulitic limestone, except a band of 

 white friable sandstone 30 feet in thickness ; while about 80 feet of 

 decaying brown sandstone below this slope is probably the highest part 

 of the carboniferous group. This latter group and the speckled sand- 

 stones beneath have here an estimated thickness of 300 feet each. 



Not only are the rocks disturbed by slipping, but they are affected 



by a strong though local anticlinal curvature, the 

 Warru Kuss. 



axis of which appears to coincide with a line of 



fault or other dislocation in the Warru Kuss, three miles west-by-south 

 from Nali. At the north of this hiss or ravine the beds are much 

 dislocated, and a narrow strip of the red marl eon- 

 Salt, tains in its upper part several beds of salt, dipping 

 north-20°.west at 50°. 

 The volcanic-looking, lavender, ashy clay of the Nilawan ravine, &c., 

 re-appears here as a band of a few feet, just in the red marl beneath the 

 purple sandstone group. 



The salt is much exposed at some height in the banks of the ravine ; 

 it is of good quality, and some 114 feet in thickness; much of it occurs 

 "at daylight," but the old mines have not been opened since the 

 commencement of the English rule. 



This Warru glen has been excavated, like the larger ones of Sardi 

 Anticlinal and fault ^^^^ Nilaw^n, along the axis of the local anticlinal, 

 **^ ^ *P' and this nearly coincides with a line of slip or 



fault along the northern slope of the glen (see fig. 38, PI. XXII). 



The uppermost 50 to 80 feet of the purple sandstone is here quite 



„ . light-coloured and massive, and a thin represent- 



Series. _ _ _ '- 



ative of the silurian shaly zone continues to 



( -^is ) 



