GENERAL GEOLOGY OF THE AREA. 11 



g-neissic granite at the base, nearest the village, and the uneven surface 



of it plastered over by a coarse conglomerate, which at first sight looks 



not unlike the Talchir boulder-bed, but is essen- 



Old conglomerate. ,■■,■, too , « -^ t • j^- ^ i 



tially different from it. It is entirely composed 



of metam Orphic boulders, perfectly rounded pebbles, chiefly of granite 



and gneiss, with a few blocks of mica schist. The whole is cemented 



together by a silicious rock which in some parts resembles a true chloritic 



schist. Thin beds of this material, with strings of pebbles, separate 



the boulder-bed into banks. 



The dip is very uneven and disturbed ; the conglomerate seems cinished 

 ao-ainst the metamorphics. Near the contact, the bedding is nearly 

 normal, but within a few hundred yards I found the beds of the upper 

 sandstones (presently to be described) raised up, dipping 30° south, strike 

 nearly east to west ; on these the Talchir rocks rest unconformably. (See 

 section, fig. 3, Plate IV). 



Lower down the river, relatively north-westwards, we find that the 

 Passes into quartz conglomerate passes gradually into a very hard 

 sandstone. quartz sandstone, which at once reminds one of 



the sandstone of the Vindhyan range. It exhibits beautiful examples 

 of ripple-marking, and the thicker beds of sandstone show false-bedding 

 and contain many strings of grits and pebbles. 



Though the conglomerate is not identical with, still it looks sugges- 

 tive of a possible relation with, the jasper boulder 

 Possible correlation n r? i.- t • 



witli jasper conglomerate bed of the lowcr V indhyan formation, as I saw it 



o m yans. gouth of the escarpment near Agori Khas. I may 



mention here also that I could not help again being reminded of this and 



the Vindhyan iasper conglomerate when I saw the 



Similarity with the pi . -. 



old slate series of the great development of slates, quartzites and con- 

 X ima ayas. glomerates of the Himalayas, which form a complex 



of beds not less than about 5,000 feet thickness below the lower silurian 

 formation, and rest near Malari on the metamorphic series. Both at 

 ISIalari and in the grand sections of Kharbasia in the Himalayas, the litho- 

 logical sirailanty of this series with the jasper conglomerate of the penin- 



( 139 ) 



