1862.] 



APPLEGATU MASULIPATAM. 



33 



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There is another remarkable feature in this locality, 

 coloured slate hills, with nearly 

 horizontal strata. The variegated 

 schist and olive slates appear to lie 

 unconformably upon a kind of flag- 

 stone ; the latter rests on a hard, 

 quartzose sandstone (0) ; and the 

 base-rock is massive gneiss. The 

 last-named rock is joined at the 

 Fort of Juggiah Pettah by the 

 limestone already described, the 

 variegated schist extending as a 

 ridge down the centre, and attain- 

 ing an elevation of 400 feet in a 

 conical hill called Noonacondah, or 

 Oily Hill, which has been scarped 

 by the river, and where a few 

 traces of fossils have been found. 



I must not omit to mention 

 that in the bed of the Kistnah, 

 accompanying the schist C, is a 

 large mass of rounded, water- worn 

 pebbles (a specimen of a reddish 

 one is sent, D). They vary in size 

 from 1 inch to 1 foot in diameter. 

 They are principally of a pale-grey 

 colour, weathering to brownish 

 grey, and are composed of a very 

 fine sandstone; their internal 

 structure is perfectly crystalline, 

 corresponding to that of the rock 

 due north, at the Fort of Juggiah 

 Pettah, where the sandstone as- 

 sumes a tessellated form, and dips 

 9° S., strike 70° N.E. 



On the eastern side of these 

 fields the same description of sand- 

 stone is met with, but more mass- 

 ive and coarser, more like a grit, 

 and dipping to the W., strike 65° 

 N.E. It has a uniform strike 

 along the ridge for about four 

 miles, and an olive shale or slate is 

 always found close adjoining. 



An attempt was made some 

 years ago to sink No. 1 shaft for 

 coal through the red schist in the 

 southern part of these fields. The > 



red colour appears to be super- ^ 



ficial ; for at a depth of 10 or 15 ^ | 



vol. xix. — pajrt i, a 



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