16G ■ W. BLANPOED^ WESTERN INDIA. [PaRT II. 



These beds so strongly resemble the cretaceous rocks that the first im- 

 pression on examining- tbem is that the latter 



Proofs of the sedim en- r»i,i -I'u 



tary beds belonging to have been brought up by a tault^ to which, more- 

 rap series. ^^^^^ ^^^ ^^.^^ ^^^^ ^^^^ noted might be attributed. 



But on closer examination, all the sandstone and sandy shale is found 

 to contain more or less of trappean detritus or volcanic scoria ; conglo- 

 meritic ash, containing rounded fragments of trap, is distinctly interstra- 

 tified, and a massive bed of hard trap underlies them. The latter, so 

 far as anything is seen at this spot, might be intrusive, but further to 

 the west, near Ghantol, where the sandy and ashy beds are of great 

 thickness, and comprise fine red sandstone, and even a band of compact 

 limestone, their base clearly rests upon a thick trap flow, which again 

 rests upon the uppermost beds of the cretaceous series. That the latter 

 are the uppermost beds is shown by their character, — sandy or even 

 finely conglomeritic and calcareous, and by the presence of oysters. 



There is evidently a passage amongst these sedimentary beds of 

 the trap, and that within a short distance, from almost pure sandstone 

 to ordinary volcanic ash, and the sandstones of one side of the Chiklee 

 valley evidently correspond to the ashy beds on the other side. That 

 all or nearly all are sedimentary is clear. 



Hornblend and augite crystals, such as are occasionally showered 

 out of volcanoes, occur in these strata. In some places the beds attain 

 a thickness of certainly not less than 200 feet. 



It is very clear that all these sedimentary beds belong to the trap. 



They have very much the appearance of the detritus filling river beds, 



_, , -, . . J... and it seems highly probable that streams hollowed 



Probable origin 01 these o j l 



sedimentary beds. q^^^ valleys in the trap flows, and partially filled 



them again with rolled stones mixed with volcanic ash in the space of 

 time intervening between successive flows of lava. 

 ( 328 ) 



