56 FOOTE : GEOLOGICAL STRUCTURE OF THE EASTERN COAST. 



Unfortunately no section could be found throwing any light on the rela- 

 tion of this kankar bed to either the under or overlying deposits. 



The nature of the small shells collected, whether marine or fresh 

 water, has yet to be determined by comparison ; they were of too small 

 a size and inconspicuous a character to be safely determined off-hand. 

 Some minute shells of precisely similar character 

 were found on a well heap in the field about three- 

 fourths of a mile .north-west of Kandukur, and a few yards off the path 

 leading to Kovur. These were associated with fragmentary plant 

 remains. The beds seen in various well-sections, or their debris exhibited 

 in the waste-heaps, shows the prevalent character of the rock to be drab 

 or brownish-buffy sandy shales, or shaly sandstones with reddish laminae. 

 These rocks, whatever their character, are largely composed of scales of 

 mica, and mostly very friable. 



Westward of Kandukur the Rajmahal rocks are seen in well-sections, 

 Anantasagaram and and a £ew vei T shallow surface sections at several 

 Yedlurpad sections. places at and around the villages of Anantasagaram 



and Yedlurpad. Shaly micaceous sandstone from a well just east of 

 the former village showed just distinguishable traces of PtilopAgllum. 

 This sandstone contains but few plant remains, and those few are very 

 fragmentary. A well-section at Yedlurpad shows about 20 feet in 

 thickness of drab shaly sandstone containing numerous concretionaiy 

 surfaces, white and porcellanoid in appearance, and striated like a fine 

 slickenside. Some concretionary masses also had their whole exterior 

 covered with this glistening surface. This quasi-porcellanoid surface is 

 due to the presence of a film, as a rule of extreme thinness, of calcareo- 

 argillaceous material. Though porcellanic in appearance, the bright 

 surface is really soft and very easily scratched. 



Eastward of Kandukur, chocolate-coloured shales were observed in the 

 „ „ , ditch by the side of the new high road leading 



East of Kandukur. J & . o 



from Kandukur to the great north trunk road at 



Singarayakonda, at a distance of about 3 miles from the former 

 ( 56 ) 



