IS RAMCJUKIf COAL FIELD. 



Within tlic coal- field we do not anywhere find the rocks covered 

 up by alluvium j but in several places the gneiss 



Alluvium. , • 1 ' i • 1 



outside IS entirely obscured by it. More especially 

 is this the case on the south bank of the Damoodah south-east of 

 the village of Sarum^ and also south and south-west of the town of 

 Ramgurh. 



Sand chiefly occurs in the long reaches of the river Damoodah 

 outside the coal-field : occasionally it is found to 

 extend some distance inland from the banks ; when 



it forms slightly undulating ground clothed with several species of carex 



and grasses. 



Conglomerates are found in several places in the bed of the Damoo- 



dahj one being on the south bank, north-east of the 



fort at Ramgurhj and another on the north bankj 



north-west of Lodhman. They consist of quartz and gneiss pebbles^ 



bound up iii a matrix which contains both iron and carbonate of lime. 



Laterite occurs very sparingly indeed ; two small patches outside 

 the boundaries having alone been detected, one 



Laterite. 



in the Damoodah, north-west of Burobing, and 

 the other close to Kutha. 



Kunhur is very scarce outside, and does not occur inside, the field ; 



close to the southern boundary of the Bokaro 

 Kunkur. 



field, it is more abundant than elsewhere. 



A saccharine limestone encrusting the rocks is seen in the bed of 

 the Damoodah north of Kana, it is highly crystalline and exceedingly 

 pure. Seen at a short distance it is suggestive of the appearance pre- 

 sented by drift snow. 



In several streams thin crusts of carbonate of lime are found spread- 

 ing over the gneiss and schistose rocks. 

 ( 126 ) 



