GKNERAL GEOLOGICAL NOTES. 21 



representative of Mr. Theobald's ' Negrais group' in the Arracan range^ 

 with some of which strata they seem fairly to agree lithologically ; the 

 rocks have not, however, a very strongly marked or distinctive character 

 in either province. But, judging from the uniformity of structure in the 

 Arracan hills throughout the length of 250 miles yet examined, it would 

 not be surprising to find the same beds extend as far as Assam. 



Coal-measures. 

 The coal-measures consist of alternating shales, sandstones and 

 coal, with a few thin calcareous layers. One of 



Lithology. 



the best exposed and most characteristic sections 

 of them that I have seen is to be found in a small stream which 

 descends the hill-side west of Kongan, and runs into the Dikhu a little 

 above Tel Pung. Like all the subsequent sections, it is given in descend- 

 ing geological order. 



Grey shale, seen 



Blank 



Eather thick-bedded sandstone, dipping E. 25 S. at 25° 



Coal 



Brownish-grey shale 



Blank 



Thin-bedded sandstone, with one or two beds of hard and 



tough magnesian limestone 

 Thick-bedded sandstone ... 



Thin-bedded sandstone, with nodules of clay ironstone 

 Thick-bedded sandstone 



Clunchy grey shale, with nodtdes of clay ironstone 

 Thick-bedded sandstone 

 Brownish-grey shale 



Clunchy grey shale, with a few nodules of clay ironstone 

 Brownish-grey shale 

 Coal 



Carbonaceous shale 

 Coal 



Carbonaceous shale 

 Coal 

 Brown shale ... 



( 289 ) 



Ft. 



In. 



5 







14 







15 







1 



6 



13 







7 







6 







12 







4 



6 



4 



6 



3 







8 



6 



1 10 



1 







3 











7 







8 







3 







7 







3 







3 







1 



