KAMTHI. 7 1 



Ckdnda District. 



Following the same plan of describing the distribution of the Ram- 

 this as that adopted for the Barakars, I will first allude to their occur- 

 rence in the Chanda district. 



The most northerly points at which the Kamthis appear, are Mangli 

 Pandiirtara, Bhatara, and Kbemji. They are overlapped by trap and 

 alluvium from Mangli to Khemji, but east of the latter village they are 

 in contact with gneissose rocks, being faulted against them. Along 

 the trap boundary, compact gritty sandstones are found with bands of 

 conglomerate, all so strikingly similar to one another, that little doubt 

 can be entertained of their belonging to one group. The most pro-* 

 minent sandstone is a white or grey variety with streaks and blotches 

 of red. It is frequently felspathic, generally coarse, and very often has 

 a vitreous conchoidal fracture. The majority of pebbles in the conglo- 

 merates are of quartzite, but amongst them are fragments of various sizes 

 of very fine buff sandstone, generally sub-angular. In all these charac- 

 ters there is a close resemblance to the beds described as typical Kam- 

 this at Bazargaon.* The subordinate beds are red earthy shales and 

 argillaceous sandstones. 



The beds of Mangli, which contain Estherias in abundance, and 

 from which the Labyrinthodont {Brachyops laticeps) 

 was obtained, are red and yellow argillaceous sand- 

 stones. They dip to the south, but this is not a constant direction over 

 any large area, opposing dips being seen in the L^ndi stream. I am able 

 only approximately to compute the horizon which these beds occupy in 

 the series, and I put it at 600 to 700 feet. The base of the Kamthis 

 is exposed at Bailgaon, and allowing 400 to 500 feet for the lower, 

 sandstones, and 100 to 200 for intermediate beds, an estimated height 

 of 700 feet, I think, will be nearly correct. The rocks of this part of 

 the country roll about at low angles, so that the vertical thickness of 

 the series cannot be great. 



* Memoir, Geological Survey of India, 1872, vol IX, page 314. 



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