SKETCH SECTIONS. 



19 



In reviewing the facts mentioned in the foregoing pages several 

 interesting conehisions may be drawn. It is of special interest that 

 Sirban, being a locality south-west of the first great crystalline axis of 

 the Himalaya — of which region the palseontological geology is as yet 

 little known — affords a means of comparing the formations on both sides 

 of the above-mentioned axis. 



In order to do this, it will be useful to abstract from the papers of 

 Dr. StoHczka a tabular resume of the Himalayan formations placed in 

 comparison with those of Sirban : — 



SlEBAIT. 



Stoliczka: 



Spiti. 





IfummuUtic. 











Cretaceous , 



/•TJnfossilifei-ous limestone 

 Ipossiliferouszone 





(Chikkim shale 



\ Chikkim limestone . 



.. ? 



> Cretaceous. 





... ? ... 





Gieumal sandstone . 





J- Jurassic. 



Jurassic . 



. Spiti shales... 





Spiti shales 







VncoiiformitTi. 











Triassie 



^Thin-bedded limestone and 



V shale 



) Dolomite and Megahdmi 



V stone 



slaty 

 lime- 



{■ Tagling limestone . 

 j Para limestone 





> Triassic. 



Below fhe Trias, 



f Silicious Dolomite 



^ Eed sandstone and shale 





Lilang series ? ? 



.. P . 







Unconformity. 





j-Knling series? 

 I iVIuth series? 





Carboniferous. 

 \ ? Silurian. 



Slate series 



Attock Slates 





Babeh series ? 





It is apparent that though there is a general simiiarityj the two 

 regions on opposite sides of the crystalline axis show several points of 

 difference; though not so great as to deprive us of hope that they may be 

 brought into closer accordance by subsequent researches. At present 

 the main differences are rendered greater by the occurrence of marked 

 unconformities in one region unrecorded in the other. 



( 349 ) 



