103 "«". BLANFORDj WESTERN INDIA. [PaRT II. 



South-east and south of Burwai all is trap^ two or more exposures 

 of intertrappean limestone occur ; one in especial, on the left (east) bank 

 of the stream, abounds in Fhysa Frmsepii, both the elongate and the 

 tumid forms occurring. 



In the Chorul, east and north-east of Burwai, there is an excellent 

 section of the Bijawur rocks, entirely breccia and limestone of the usual 

 types. Crushing is seen amongst the breccia, precisely as in the Kanyar 

 near Andhari Bagh. 



The base of the traps here is very irregular. The cretaceous beds 

 only underlie them in patches ; frequently the trap rests directly upon 

 either the Bijawurs or the Vindhyans. A better study of unconformity 

 could not be wished than around Burwai — Vindhyans upon metamorphics 

 and Bijawurs, cretaceous beds upon Bijawurs and Vindhyans, trap upon 

 all four, each unconformable upon the other, though the degree of un- 

 conformity varies in each case. 



In some cases, a few ill-marked fossils occur in the cretaceous beds. 



Thev are very frag-mentary, but broken pieces of 

 Fossils in mfra-trap- '' j a J ' i 



pean beds. shells were found sufficiently marked to show the 



presence of marine species. About half a mile east of the Chorul on the 

 road from Burwai to Mandata, in a ravine just north of the road, trap 

 is seen resting on a horizontal bed of sandstone and conglomerate, 

 probably calcareous, and much hardened by the volcanic rock. The 

 fracture is peculiar, exhibiting a glistening surface when held in particular 

 directions, as though some mineral (carbonate of lime ?) were crystallized 

 throughout the mass. Fragments of an univalve and of a very thick bivalve 

 abound, but no perfect specimens could be found. It is possible that these 

 shells are P/ipa and Unio, and that the bed belongs to the trappean series, 

 more probable that the fossils are marine and the limestone cretaceous : 

 it thins out within two or three yards, and the trap tlien rests upon schists. 



At another spot, about a mile north of Burwai and west of the high 

 road to Mhow, there is a considerable inlier of Bijawur beds surrounded 

 by trap. Just west of a small rise of trap, fragments of a reddish 

 fossiliferous limestone were met with, in which fragments, apparently of 



( 264 ) 



