Sec. 13.] * detailed desceiptions. 187 



In proceeding to give a few additional details concerning this re- 

 markable inlier of the cretaceous rocks^ it will be 

 Further details. t .1 r. i i • ■» 1 



best to describe^ nrst, the larger area occupied by 



them to the west of the Deva. 



In the neighbourhood of the northern boundary^ which runs about 



^ , . Tr 1 west-30°-south up the valley of the Koorban 



Rocks seen m Koorban ^ •> 



stream. stream, a few beds of red clay occur with the 



sandstone, similar to those met with further north near Kawat. Further 

 up the stream much shale and shaly limestone occurs, the latter con- 

 taining oysters, and peculiar ferruginous masses, enclosing Bryozoa. 

 Intercalated with the shales at one spot is a horizontal bed of trap, which 

 has the appearance of being interstratified, but is, in all probability, 

 intrusive, like another presently to be noted. A huge mass of intrusive 

 trap is seen close by. The beds dip steadily to the west, and trap covers 

 them up near the village of Mootar. 



In the next valley to the south, that of the stream flowing past 



Wandee and Torakhal into the Deva, the rocks 

 Rocks near "Wandee. 



seen are principally shales, of which there is a 



great thickness. They stretch for some distance beyond Wandee, then 



the steady low west dip brings in the traps. In the shale west of 



Wandee, another horizontal dyke of trap was seen just north of the 



stream. On examining this closely, it was found to alter the shales both 



above and below, and on tracing it for a short distance back from the 



stream, it was found that its apparent interstratification is only continued 



for a few yards, and that, just beyond, it cuts through the beds. There 



can therefore be no doubt of its intrusive nature. The dyke is from 



6 to 8 feet in thickness, dark, compact and non- vesicular. 



There is much crushing and twisting in the upper shales, just below 

 the traps, west of Wandee. 



The top of Soondroo hill north of Doomkhul is of trap. By 



aneroid measurement, the base of the trap was 

 Soondroo hill. n ^ 



about 600 feet above the lowest sandstones seen 



near Doomkhul. The greater portion of this thickness is of shale; 



( 34.9 ) 



