74 FOOTE : GEOLOGICAL STRUCTURE OF THE EASTERN COAST. 



contains numerous obscure fragments of plants of red colour very similar 

 to those observed at Annavallawarpalem in the Vemavaram patch. 

 Obscure vegetable remains occur also occasionally in the lowest mem- 

 ber of the Pavulur group, the drab sandstones No. 7. 



In the eastern part of the Budavada patch no natural exposure of 

 • Eastern part of Buda- the Rajmahal beds was met with, and they are 

 vada patch. revealed only in a few well-sections to the east 



of Pavulur, at Inkolu (Yinkolu) and a little distance to the south-west 

 of Hanumazipalem. In all these the rock shown consists of soft sandy 

 shales of buffy colour containing few or no traces of plant-remains. 



In proceeding northward from the Budavada patch of Rajmahal beds, 



we find it to be separated from the Idupulapadu 

 Idupulapadu patch. 



patch by a flat alluvial valley a little more than a 



mile in width. The plant-beds form a broad low whale-backed spur a 

 couple of miles wide from north to south, and about 6 miles long from 

 west-by-north to east-by-south. Here also nearly the entire surface is 

 covered by cotton soil so thickly that but very few exposures of the 

 Rajmahal rock can be found. Only two genuine exposures were seen, 

 the one a little to the west of Idupulapadu village, the other just north 

 of Ambatampudi hamlet on the southern boundary of the patch close to 

 where it is crossed by the path leading from the above-named village 

 to Nakkalapalem and Budavada. Both these exposures are too slight in 

 depth to afford a section of any value, and no other information was 

 procurable than from well-sections in the fields. In many of these, too, 

 only the dug out material was available, the sides of the wells being 

 inaccessible. Enough was seen to ascertain that the whole patch is 

 made up of grey and white and rusty-brown mottled shales, which are 

 doubtless an extension of the shale beds No. 6 north and north-east of 

 Pavulur, which I regard as in their turn an extension of the Vemavaram 

 beds. Fossils were found in two or three of the well-sections west of 

 Fossils at Idupulapadu Idupulapadu, and in one section in the fields 

 and Dronadula. belonging to Dronadula (Deranadula), about a 



mile and a half south-east of the village. The fossils found, which 

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