210 "^^ BLANFOUt), WESTERN TNBIA. PPART IX. 



be traced so far as Moonjhlao^ and on following them to the northward 

 from the river, they gradually thin away and disappear, while the band 

 of trap between them and the Moonjhlao laterite, which is only 

 a few yards in breadth close to the river, gradually increases to nearly 

 half a mile. It should be mentioned that the laterite beds alone 

 are clearly seen at the surface, all other beds being more or less 

 concealed by alluvium. The change in the breadth of the trap might, 

 of course, be explained by supposing it was a lava flow gradually 

 thinning away, but the change in the breadth of the outcrop appears 

 too great. There is also some other evidence of faulting. Where the 

 trap thins away just north of the river, and -the two laterites east 

 and west of the strip of trap would come together, all is covered by 

 alluvium, but close by, the laterite to the west, which has had a steady 

 western dip aU the way from Moonjhlao, suddenly rolls over to the east 

 as it might be expected to do with a considerable downthrow fault 

 just east of it. The whole evidence appears very strongly in favour of 

 faulting. The direction of the fault is east 30° north. 



Above the laterite (the Nerolee and Moonjhlao bed) there] is seen, 

 WhHe ted above ^^^^ ^^® river, a white bed, approaching kaolin 



laterite. ^jj appearance. In texture it has a marvellous 



resemblance to the laterite, having the same minute subbrecciated struc- 

 ture and containing little patches of white clay. It appears, in short, to 

 be laterite without the iron peroxide. 



The source of the iron in the laterite beds may be identical with that 



of the hsematite grains so abundant in the fossili- 

 Iron in laterite, &c. j v j. 



ferous sandstones and limestones. 



Down the Taptee, no more rocks are seen on the north bank for some 



, „ distance opposite GuUa. On the left (south) bank 

 Section on left bank of ^^ 



Taptee opposite Gulla. of the river, conglomerates, containing pebbles, 

 mainly of agate, with a few of trap and of yellow calcareous sandstone, 

 are seen dipping at a low angle, 3° to 5° to the west. They contain 

 interstratifications of red and yellow clay, of yellow calcareous and nodular 

 ( 372 ) 



