SEC. 10.] / NOBTH-WESTEUN KUTCH. 265 



The fault which runs along the northern base of this hill strikes 



directly for a place where the southern corner of 

 Peculiar weUs. 



the Jurassic sandstone exposure is enclosed on two 



sides by the traps. Here south of the Dhurmsala in the line of 



the fault a strong spring of warmish " Kara," saline water, fills a 



tank about 20 paces by 25 in extent, from which it is daily drawn 



for use at the alum works. It is said to replenish this every night, when 



the outlet is stopped, to a depth of 4 cubits. A steep bank of the 



horizontal Jurassic sandstones rises a few feet from the tank. Close to 



the foot of this are several wells of good drinking water at about the 



same level as that in the tank, the nearest of them being but nine 



paces from the latter. 



A narrow plain north of the hill from which this section starts 



exposes little rock, but the white and lateritic beds 

 Leaf shales. 



can be traced here and there; and some white 



sandy shales at Judwara talao on the road to Kora contain fine leaf 



impressions similar to those of the Mhurr alum shale. 



Section E F shows the arrangement of the rocks to the westward 



of Mhurr and the place of some fossiliferous 

 Section E P. 



tertiary beds which are probably let down by 



a fault or faults on the south side of the basaltic trap ridge or spur, 

 so as to have escaped denudation. The faulting was not, however, 

 satisfactorily traceable ; but the beds were seen to occur in the follow- 

 ing descending order at a short distance to the west : — 



Dip. S. at 5°. 



Ft. In. 

 14. — Rugged yellow sandy teds full of fossils, small Oysters, Fectens, 

 Nummulites, and Corals, Venus nonscripta, Natica patula. 

 Conns hrevis, &c. 

 13. — Lateritic or ferruginous band ... ... ... 18 



12. — Brown flaky shale, tough where not weathered, contains shark's 



teeth and ? Nummulina. 

 11. — Yellow, earthy, compact bed ,., ,„ ... 3 



( 265 ) 



