22 KING : COASTAL REGION OP THE GODAVARI DISTRICT. 



are from 80 to 100 feet high and are made up of thin, fine, soft mica- 

 ceous sandstones and sandy flags of buff and purple colours, while about 

 20 feet at the summit is of thick-bedded, coarse, soft, micaceous, brown 

 weathering" sands. The Musanur valley is altogether of the lower beds, 

 which clip gently to the southward, under the Ravacherla beds, the lowest 

 of which must correspond to those capping the hills just referred to. 

 These are succeeded by about 50 feet of thinner, generally rather coarser 

 and more variegated, sandstones, with a few yellow and red clays, never 

 so micaceous as the Musanur beds, over which comes a thin band of 

 hard brown sands, giving a low head-land and scarp near Polsanpili. 

 Then come some 30 feet of lighter-coloured sandstones on which Gollapili 

 is situated, succeeded by about 1C0 feet of massive thick -bedded, dark- 

 brown micaceous sandstones in the long rounded slopes below the Dudu- 

 gut scarps. The latter sandstones weather of a dark-brown purple 

 colour, in smooth rounded humps which stand out in the jungle very like 

 humps of gneiss. 



This succession may be put thus in tabular form : — 



f. Massive brown micaceous beds below Dudiigat scarp 

 e. Light-coloured variegated sandstones of Gollapili itself . 



d. Polsanpili headland beds 



c. Softer and lighter-coloured sands ; and, lower, the brown fos- 

 siliferous beds of Ravacherla ...... 



I. Musanur micaceous beds ...... 



a. Bottom beds, indurated clayey sandstones, &c. 



These thicknesses vary a good deal ; but the total here given is about 

 the greatest thickness there can be of the whole group. 



This succession in the Nuzvid basin is more properly a local assem- 

 blage of varied strata, for it does not extend, or is not represented, be- 

 yond the Tammiler side, except by the bottom indurated clayey sand- 

 stones {a), and by the massive micaceous beds (/), which are continued 

 in the low jungle-covered hills north of Vijarai. 

 ( 216 ) 



about 



100 feet. 



„ 



30 „ 



" 



10 „ 



» 



50 „ 



>> 



75 „ 



33 



20 „ 



AJbout 285 feet. 



