W. T. Blanford— O^i the Geology of Bind. 



[Jatt. 



information has since been added, the most important being the recognition 

 of cretaceous beds at the base of the tertiaries, and the confirmation of 

 the view before announced that a thin flow of basalt representing the 

 Deccan traps underlies the tertiary rocks. The beds of Sind are now classi- 

 fied thus in descending order. 



Name, Subdivisions. Approximate. Supposed Memarhs. 



thickness, geological age. 



1. Alluvial 

 &c., 



2. Manchhar - 



upper 



l^lower 



unknown 



5000 



3000 to 5000 



recent and post 

 tertiary 



pliocene 



3. Gaj 



4. Nari 



5. Khirthar 



6. Eanikot 



7. Traps 



8. Cretaceous 



{upper 

 lower 



( upper 

 ( lower 



lower pliocene 

 or upper mio- 

 cene 



1000 to 1500 miocene 



4000 to 6000 lower miocene? 



100 to 1500 upper eocene 



500 to 3000 eocene 

 10,000 ? do. 



2000 lower eocene 



apparently re- 

 presentative of 

 the Sevaliks 

 proper. 



Nummulitic 

 limestone. 



The base not 

 determined. 



40 to 90 



CCardita ") 

 Beaumonti > 350 to 450 



beds 3 

 Sandstones 700 

 Hippuritic 



limestone 320 



uj^per cretace- Representative 

 ous of Deccan and 



Malwa trap 



cretaceous 



ex- 



base not 

 posed. 



The finest sections are exposed in the Khirthar range in Upj)er Sind, 

 and from this range the name applied to the nummulitic limestone, which 

 always forms the highest part of the hills, has been taken. On the eastern 

 flank of the range, the Nari, Gaj, and Manchhar beds are seen successively 

 dipping towards the Indus plain, whilst west of the range, in Kelat, lower 

 beds come in, but these have hitherto only been examined very hurriedly 

 in one spot, on the Gaj river, which traverses the main range by an 

 impassable gorge. Some 10,000 feet of these lower beds are exposed, no 

 base being seen, but nummulitic and other fossils were only found in the 

 higher beds, the lower 5000 or 6000 feet being unfossiliferous. 



