tHE BAllAKAllS. 
stance. The foUowinj^ is a proximate analysis of hoiiic iiialc.riul picked 
from these stringers : — 
MoiHtiini 1 1 •.').') 
Volatile matter ....... .■{4v'5.3 
Fixed Carbon ....... 47"50 
Ash (;-42 
Total l((0-(Ki 
The heat required for this sujij^ested distilhition of coaly matter 
must hav(^ been developed by the earth movements that crushed 
the coal. Takin<i; into consideration all the evidence, it is clear 
that when a series of rocks of such variable characteristics as mas- 
sive sandstone with interlaminated horizons of coal and associated 
shales suffers tectonic disturbance, there is a tendency for the 
massive sandstone to slide over the underlyinif coal seam with 
gentle crumpling of the uppermost 3" to 6" of coal in mild cases, 
but with actual squeezing out into lenticles of the whole of a 
thin coal seam in the more violent cases. In fact the sandstone 
slides for at least a small distance over the coal with a produc- 
tion of an interbedded overthrust fault. 
At Lachman Jharia (No. 9, Kurasia field) there is a ' sand- 
stone-dyke ' 3 to 5 inches wide, traversing the coal seam verti- 
„ , , , callv in a N. 5° W. direction swerving to 
Sandstone-dyke. ^.^ mi i ^ • i i. 
jN. jn. W. Ihe sandstone is a grey and yellow 
micaceous argillaceous variety, and is probably an infilling from 
above of a fissure opened in the coal by earth movement. 
An allied phenomenon is seen at the Diwan Dham exposure, 
Charcha (No. 3 Sanhat field). A few inches 
Contorted sandstone ^^j^^ ^ ^^^^ ^ ^^j^ ^^^^ 
of cream-coloured clay, up to an inch thick, 
absent in places and gradually cutting across the coal, so that 
at one end it is only 2 inches below the top of the coal, whilst 
at the other end it is one foot below. There are also three 
curious contorted sandstone veins rurming downwards through 
the coal, two of them starting from the clay seam and one from 
the overlying sandstone. The coal is slightly disturbed on their 
edges and broken fragments are enclosed in the veins. One 
inch from the edge of these veins the coal is quite undistur- 
bed. There is also an irregular patch (5J" long) of sandstone, 
starting from the overlying sandstone. This and one of the con- 
