8 HUGHES : KURHUEBlRl COAL FIELD. 



of the Kumarsote and Sooknid streams, opposite Biiklisliidili. The 

 Talchirs and Damiidas, recognised easily by their special characters, are 

 the only representatives of the unaltered sedimentary rocks. The first 

 of these series, which is not coal-bearing", occupies only a small part 

 of the field. 



A computation of thickness of all the strata made by Dr. McClelland 

 gave a total of 2,362 feet. Nowhere, however, does a section clear 

 enough exist by which a calculation could be made with any accuracy 

 of the depth of the rocks in the field; but taking their general dip 

 and their strati graphical disposition, it seems improbable- that the thick- 

 ness of the beds is so much as this. 



The rocks which occur in the close neighbourhood of the field are 

 varieties of gneiss, bands of hornblende, quartz reefs, trap dykes 

 and granite lodes. As these different classes of rocks have not to be 

 specially described, they are only briefly referred to. 



HornUende rod forms a small peaky hill west of the Oosri', and 

 another, Chepo hill, situated to the south-west of the field. In both 

 localities, its relations to the surrounding gneiss show it to- be of the 

 same series, inseparable from the metamorphics with which it corres- 

 ponds in strike and dip. 



Trap. Along the southern side of Khandauli hill, which forms a 

 prominent feature north-east of Kurhurbari, a trap dyke, 60 feet wide, 

 strikes due east and west. A smaller one shows at the surface between 

 it and the scarp of the hill. To the north of Buswasdih and about 

 half a mile from Bhorundiha, a large rocl^y mass of coarsely crystalline 

 trap occurs, forming two small rises in the clayey flat to the south-east 

 of the field. This trap has not a very defined range, but it appears to 

 be west-north-west to east-south-east. 



Quartz Reefs are common, and form long, well marked ridges. 

 The most prominent direction in the north is due east and west, to 15° and 

 ( ai6 ) 



