Sec, 4.] detailed desceiptions. 103 



an Ammonite and Belemnite, oysters, a small bivalve resembling Aslarie, 



a Terehratula and fossilized wood, were found — serving to identify the beds 



as belonging to the Bagh cretaceous series. 



In the Bijawurs of this same patch, iron ore abounds in a brecciated 



rockj consisting of irregular fragments of brown 

 Iron ore in Bijawurs. 



haematite and quartz in a ferruginous matrix. These 



supplied ore for some time to the Burwai Iron "Works. It is by no means 



clearj however, whether the ores are an integral part of the rock, or merely 



the surface impregnated with oxide of iron. The officers engaged in the 



works were inclined to take the latter view, and the excavations were 



not sufficiently deep to settle the question. 



All to the north and west, for very many miles, is trap. No rocks 



of older age re-appear till west of Mandoo. 



Section 4. — Nerbudda valley south of the eivee, from the smallee 

 Tawa on the east, to the Jheekhul on the west, including 



THE BUEWANEB HiLLS. 



The whole of this country, with the sole exception of one small strip 

 in the immediate neighbourhood of the river, be- 



Eocks. 1 m 1 T-i • ' P rrn 



tween the Tawa and Burwai, consists of trap. The 

 excepted tract is composed of Vindhyans, being a portion of the area 

 occupied by those beds in the Dhar forest. 



Close to the Tawa, and just south of the village of Bijulpoor, there 



is a siliall patch of granite or granitoid gneiss, 

 pean limestone near Bijul- To the south of it, intervening between it and the 



trap, is impure nodular gritty limestone, which may 

 possibly be intertrappean, but which appears to resemble the upper limestone 

 of the Bagh beds more closely than any other formation. It contains small 

 fragments of quartz and felspar, besides minute portions of fossil wood. 

 No distinct organisms could be made out, some markings resembling 

 fragments of shells were seen, but their nature could not be determined. 



( 265 ) 



