BALL: CHOPÉ COAL-FIELD. 3 
occasional outcrops of metamorphic rocks, some of which are accom- 
panied by extremely rich deposits of iron. 
For some distance on either side of the Mohani the ground is much 
broken up into ravines and covered with jungle, both of which tend 
to obscure the position of the boundaries. Fortunately the greatest 
depth of the area from north to south is traversed by the Mohani, 
the section in svn affords a clue to the structure otherwise com- 
pletely hidden. 
The section in this stream, in so far as it refers to the coal-field, 
commences with a fault a short distance beyond 
(north of) the mouth of the Torar stream. This 
fault is well marked both by the crush up and abrupt approximation 
Section. 
of the rocks on either side and by a dyke of pseudomorphie quartz 
which is similar to that often found accompanying lines of fracture. 
This fault has lowered to the level of the gneiss a few feet of coal- 
measure sandstones, and shaly and stony coal with some ordinary carbo- 
naceous shales. 
The actual thickness of the coaly portion could only be roughly 
estimated, owing to the crushing up, as being about four feet. Its utter 
uselessness as a source of fuel, however, renders this an unimportant 
point for determination. 
Proceeding northwards up the bed of the river, the section soon. 
discloses the fact that these rocks form a basin or trough, and at a 
distance of about one hundred and sixty yards the coaly shale again 
crops out with a dip of 15° to south-south-west. Beyond this after a 
short interval there is an anticlinal lump formed of the "Tálehír boulder 
beds. Owing to this interval, in which sand is alone seen, the character 
of the boundary between these adjacent rocks is obscured. 
At first sight the junction appears to be natural, but on examining 
the section further north on the other side of the anticlinal, quite a 
) 540 ر‎ 
