DESCRIPTIVE GEOLOGY: CRYSTALLINE AND METAMORPHIC ZONE. 243 



Fig. 45- 

 b*= Gneissose-granite veins. 

 a= Schist. 



to a foot or more across, penetrating the schists in a devious way. 

 No very prolonged search was necessary to decide that the rough 

 angular blocks were practically in situ. In order to place the 

 matter beyond all doubt we searched along the strike of the rocks 

 up the hills to the south, and we found at the village of Tandoola in 

 a section 8 yards long and 4 broad three distinct veins of the 

 granite about 1 foot wide as represented in fig. 45. South of Tan- 

 doola the veins ap- 

 pear to die out, 

 and a band of crys- 

 talline limestone of 

 rusty-brown colour 

 follows the same 

 line of strike 

 a m o n g st the 

 schists. 

 South of the band of gneissose-granite in the river-bed, the 

 schists are penetrated by a trap dyke 4 ft. wideband there is another 

 just before crossing the Tandoola N. Then, on the second " 7 " of 

 1,787, there occur in the river-bed more huge boulders of the granite 

 very slightly rounded. Tracing them south in the direction of the 

 right bank of the Tandoola N. we find representatives of them run- 

 ning up the hill-side towards the " n " of Tandoola. 



About 1 mile on from this place there are on the hill-side several 

 bands of coarse-grained trap striking north to south and dipping due 

 west about 40 . The schists here are also of a dark colour. About 

 J mile further near the last " a " of Tandoola there is another very 

 suggestive occurrence of the granite. It seemed to me to be a crag 

 jutting out from the hill-side, so much smashed by weathering that its 

 actual boundaries could not be seen. Exactly in the same line of north- 

 to-south strike there is on the south side of the Sirun R. another ac- 

 cumulation of masses of the rock, and furthermore, in the river-bed 

 itself, there are large masses of it. There is nowhere clear 

 evidence of the rocks in contact with the granite, but I conclude 

 from the linear arrangement of the blocks parallel to the general 

 R2 ( 243 ) 



