1842.] Tract between Bellary and Bijapore, 933 



yellowish pyramidal quartz crystals. Passing still north-westerly from 

 Idlapur, the hills subside into long wavy swells to Moodianur. The 

 chlorite slate is seen penetrated by a rock of reddish felspar and quartz, 

 in which chlorite is scattered in thin lamellae, which passes into eurite 

 imbedding minute green crystals of tourmaline. Actynolite occurs in 

 thin veins with quartz, and imparts a fibrous and radiated character to 

 the rock. The direction of the laminae of the chlorite slate was found 

 to be N. 55° W. ; dip 58£°, S. 45° W. ; general direction of joints N. 10° 

 E. ; dip 85°, E. 10 S. The larger beds of quartz conform in direction and 

 dip to the laminae or strike. 



About half a mile beyond Moodianur, the left bank of the Ramtar 

 river, running towards the Kistnah, presents a 

 small section of the rock composing the hill, the 

 base of which it washes. It proved to be quartz rock, irregularly tinged 

 with oxide of iron in almost tabular masses, separated by fissures, having 

 the appearance of stratification, dipping to the N. E. at an angle of 13°. 

 As I could discover no interstratined bed of any other rock, I hesitate to 

 pronounce these the lines of stratification. Globular masses of a por- 

 phiritic greenstone imbedding reddish crystals of felspar occur on the 

 surface. This bed of quartz rock lies between the chloritic schist and 

 felspathic gneiss, the latter of which is observed about a mile further on, 

 with a similar direction and dip as the former. Veins and beds of a 

 jaspery clay iron ore, with calcareous incrustations, occur in parallel 

 laminae to the gneiss, which extends into the Southern Mahratta country 

 to Cundigul. 



Near Cundigul the chloritic slate again rises to the surface as a clus- 



S. Mahratta country ter of hills, having the same smooth contour as 

 from Cundigul to Da- ,. - T ,, , , , .., . ., 



noor, on the S. bank of those of Idlapur, and crested with a similar jaspe- 



the Kistnah. ^ roc k Ranker and calcareous spar occur in 



the seams ; and the surface is strewn with nodular hematite. Many of 

 the specimens of the slate effervesced with dilute muriatic acid, im- 

 pregnated with lime, probably from infiltration of water, charged with 

 this mineral. The dip is to the N. 45° E. at an angle of 70°, the strike 

 N. 45° W. Passing over the plain at the foot of these hills, about 

 quarter of a mile from the village of Cundigul, a dyke of basaltic green- 

 stone, running E. and W. is traversed. The green chloritic slate in its 

 vicinity acquires a dull blue hue ; becomes hard and compact, and 



