71b 
MANGANICSK DKl'OSITS OF INDIA : DKSCHIl'TIVE. [PaRT tV : 
ore-bands plus interbedded quartzites. l^ut, as far as T could judge 
from the exposures seen, it is probably about 40 or even 45 feet 
where thickest, namely in the Hira])ur portion of the denosit. Altliough 
the strike of the main portion of the ore-band has been given as north 
by east, it must be noted that all along the outcrop there are many 
very crumpled portions where ore and quartzite layers are sharply 
folded. One such case is well shown in the photograph in Plate 
20 ; whilst the plan, Plate 21, of this mine shows some of the kinks in 
the ore-band. 
At Bharweli the ore-band first appears on low ground from beneath 
the alluvium, the mica-phyllite ridge lying to the west. Going north- 
Description of the north-east along the band it is found to give rise 
ovc-band : general. ^ low ridge running parallel to the phyllite 
ridge. This ridge increases in elevation, and consequently in width, 
on passing northwards, until it coalesces with the phyllite ridge at 
the manager's bungalow. The two ridges are again separated north 
of this point, the ore-ridge lying in Hirapur limits, within which it reaches 
its maximum elevation — aboiit 330 feet above the plains — at about the 
point B (figure 42). A little further north the strike of the ore-band 
curls round to north by west, so that the ore-ridge (at C) seems, as 
seen from the south, to fill the head of this valley. The dip, which 
has hitherto always been at various steep afigles (45° to 90°) to the west 
side, now becomes much smaller (20° to 35°), so that the ore appears 
at the surface for some distance down the v^'estern slope of the ridge. 
Then, just before reaching Manegsion limits the outcrop of the ore-band 
again curls round so as to strike north-east. At the same time it 
becomes thinner and nmch poorer in quality. 
The ore-band tlien gives place to red quartzite and limonite and 
begins to slope down the hill-side ; but soon after it rises again, until 
it thins out altogether at the point A opposite the phyllite hill to the west, 
the ore-band not having quite reached the platform leading to this 
phyllite peak. The overlying phyllite and underlying schistose con- 
glomeratic grit now come into contact and the grit, owing to the small 
westerly dip now possessed by the rocks, continues as a bold outcrop 
with the sinuous course indicated between A and D, beyond which I 
did not follow it. The peak to the west of D consists of phyllites with 
a very small dip and rises to, say, 800 to 1,000 feet above the plains. 
On it are numerous walls, doubtless the remains of an old hill fort. It 
is interesting to notice that the lessening dip of the rocks of this range 
