kalXdgi series. 85 



the quartzites are faulted against tlie gneiss, but the contact is hidden 

 partly by an overlap of the Deccan trap_, partly 



Jainapur section. .-_,,. , , <» i 



by thick cotton soil. There is a good show ot red 

 quartzites and "dirty breccia ^^ in the bank and bed of the river. The 

 breccia, which is very jaspideous in texture, forms a small island and 



it 



several reefs in the river. The quartzites have a westerly dip of 45°. 



About four miles to the north of the Jainapur ridge at Mamda- 



pur, in Biiapur Taluq, are several exposures of 

 Mamdapur section. 



the Kaladgi rocks which are partly inliers in the 



Deccan trap area, partly outliers resting on the gneissic series. There 



are seven of these exposures forming a row of small low hills, rising 



but little over the general surface of the Deccan trap, and running for 



six miles nearly due east to west with only one considerable break. 



Six miles west-south-west of Mamdapur is another small exposure 



of similar character at Kangalgutti (Kungulgoottee) ; all these consist 



of purplish grits and reddish quartzites with pink, chocolate, and 



drab-white micaceous shales, belonging to the basement beds. The usual 



conglomerate beds are absent. 



Another interesting inlier of the lower beds, one of a group of 

 three occurring at Galgali (GulguUeh), is to be 



Galgali inlier. , ^ 



seen m the bed or the Krishna when the river is 

 low. The beds of quartzite there form a low, flat, anticlinal ellipse 

 (with dips varying from 3° to 7") by which the river is dammed 

 back to some extent, and a rapid formed near the northern bank. 

 The rocks seen are grey quartzites and shaley beds overlaid by light-red 

 rippled quartzites, much cut up by a most complex system of joint- 

 ing. These are seen to be overlaid in the right bank of the river by 

 impure grey limestone with bands of chert and also of impure red, 

 yellow, or drab ochrey quartz, and some white chalk-like laminae, the 

 whole capped by dark-grey quartzite, on which rests the Deccan trap 

 which forms low cliffs on either side of the river. The beds exposed in 

 this section are of very small aggregate thickness. 



( 85 ) 



