58 BALL : GEOLOGY OF AURUNGA AND HUTAR COAL FIELDS. 



Latiahar is one where the relations of the beds is very intricate, and where 



a few really clear and unmistakable sections would be of great importance. 



The last area of Talchirs in direct contact with the field forms a 



marginal strip of varying width, which extends 



along the south-west border of the field for about 



9 miles from Godinan to beyond Hosir. Within its limits at Ledopali 



and Bindee there are two inliers of metamorphic rocks whose boundaries, 



though not very clearly exposed, owing to superficial deposits, cannot be 



very widely different from those indicated on the map. North of Bindee 



the Barakars appear to rest directly on gneiss without the intervention 



of any Talchirs. The Talchirs throughout this strip consist principally 



of shales and boulder beds, sandstones being less common. 



At Hosir, as already mentioned, occur the sandy and fibrous shales 



already alluded to as being similar to the anoma- 

 Talchirs at Hosir. , , . t . • i tt j.i xi 



lous rocks at Latiahar, Here they occur on the 



same line of strike and in intimate association with distinct Talehir 



shales and boulder bed, leaving no doubt as to the horizon to which 



they should be referred. There is a good deal of disturbance all along 



the line of junction with the gneiss, the shales often dipping at angles of 



from 60° to 90°. I failed to detect any faulted contacts, and it 



seems most probable that this disturbance should be referred to the 



effects of the lateral crush which would naturally follow from the faulting 



of the Barakars on the north boundary of the field. 



At the same time it is possible that there may be a continuation of 

 the northern of the Latiahar pair of east and west faults in the gneiss 

 of this neighbourhood. 



Outliers. — Detached from the main area of the field, but in its 

 immediate vicinity, there are two outHers, in which representatives of the 

 Talehir group occur. 



The first of these consists of a narrow belt in broken continuation 

 with the abovementioned marginal strip which is 

 ^^ ' prolonged beyond the Barakars at Hosir. This 



( 58 ) 



