202 . ■W. BLANFORD, WESTERN INDIA. [PaRT II. 



argillaceous structure and closely resembles decomposed trap impregnated 



with iron^ in other places it is sandy. To the west, near Deenod, laterite 



also covers the surface, but a large portion of the superficial rock here 



has rather the appearance of a laterite gravel, such as occurs so frequently 



in the older alluvium of Bengal, reconstructed from the debris 



of the original rock. In many places fragments of conglomerate are 



seen. 



This laterite may perhaps in places rest directly upon nummulitic 



,.,. ,. ^ limestone, a srreat band of which, probably of no 



Nummulitic limestone -> o ^ i. ^ 



band near Whaliat. great thickness, but occupying a considerable area, 



owing to its low dip, and the consequent breadth of its outcrops, stretches 



across south-south-east of the laterite, from south of Wagulkhore to 



near Deenod and Bhurn, about 14 miles. So few sections are seen at the 



surface throughout the long belt of rising ground formed by the laterite 



and limestone that no idea can be formed of their thickness. Probably 



other and softer beds are largely developed, but they do not crop out at 



the surface, and the hard fragments of limestone which resist denudation 



and are scattered over the ground convey the idea that the bed from 



which they are derived is of greater extent than is really the case. That 



other beds do occur is shewn close to Whaliat by the abundance of rolled 



agates, which indicate the presence of gravel or conglomerate between 



the limestone and the laterite. 



A small patch of nummulitic limestone also crops out, apparently, 



^ . , „ in the middle of the laterite bed close to Dorwara. 



Limestone near JDor- 



wara. This may be the bed below the laterite brought 



up in a small anticlinal by a roll of the strata. 



The limestone throughout abounds in Nummulites, and other 

 Foraminifera. No rocks are clearly seen beneath it, but hard ferruginous 

 sandstone and hard white calcareous sandy beds occur between Wagul- 

 khore and Kaisurgam. 



( 364 ) 



