42. BLANl'OlU) : GEOLOGY 0¥ WESTERN S1ND. 



Feet. 

 Brought forward . 5,260 

 /■ 9. Pale-grey argillaceous limestone, with but few 

 Lower Khiethae, ) fossils ; one band towards the base contains 



/ Nummulites and Alveolince . . . . 200 



— continued. 



f 10. Fine dark-coloured shales, unfossiliferous . . 3,000 

 I 11. Very fine grained homogeneous thin-bedded 

 limestones, -white, red, grey, or ochrey in colour, 

 . Oeetaceous. . -\ unfossiliferous, forming a conspicuous range . 1,200 



12. Hard grey shales with calcareous bands from an 

 i inch or two to a foot in thickness . . . 2,500 



The base not exposed. 



12,160 



About this section the first point to be observed is that none of the 

 beds below the Khirthar resemble those seen in Lower Sind sufficiently 

 to enable any o£ the strata of the two localities to be identified with 

 certainty. The sandstone No. 6 may correspond to the sands and clays 

 of the Ranikot group, but there is no great similarity, and nothing in 



Difference from beds tne a ^ove section appears to represent the fossili- 

 of Lower Smd. ferous brown limestones of the Ranikot group, 



the D'eccan trap, the olive shales with Cardita beaumonti or any other of 

 the cretaceous beds in the Laki hills. So far, indeed, as the section on 

 the Upper Gaj river is concerned, all the rocks exposed might be refer- 

 red to the tertiary epoch and classed as lower eocene ; no marked break 

 intervenes anywhere, nor are there any fossils below the argillaceous 

 limestone with nummulites, No. 9, to show the age of the beds. But, 

 further to the westward, near Khozdar, in Baluchistan, Dr. Cook has 

 discovered Ammonites 1 in some argillaceous beds, passing upwards into red 

 and white limestone, and it appears probable from the description that 



Section near Khozdar ^ ne l^ter is identical with the fine-grained thin- 

 Baluchistan, bedded limestone, No. 11, of the preceding section, 

 whilst the argillaceous beds may be the same as No. 12. 



1 Jour. Bombay Br. Boy. As. Soc, vi, pp. 186, 188. 

 I 42 )- 



