CHAr. XXXII.] 
BALAGHAT : JAM. 
707 
in Jam limits. This outcrop is composed of 3 or 4 bands of manganese- 
silicate-rock, as many as being exposed in some places, but more often 
only one. The rock is extremely quartzose, being composed of inter- 
banded spessartite- quartz-rock (gondite), grey quartzite, and, except 
at the north-west end in Jam limits, nowhere shows any appreciable 
quantity of manganese-ore. The outcrop rises in places into low mounds 
perhaps 15 feet high. The dip is very variable, being directed, at the 
south-east and north-west ends, towards the north-east side at anofles 
of 40° to 45°, and towards the middle at 50° to the south-west side. 
At one place near the south-east end, where three bands crop out, the 
following are the widths of outcrop from N. 30° E. to S. 30° W. : — 
8 paces 
11 do. 
7 do. 
19 do. 
1 1 do. 
ore -band. 
white quartzite (like vcin-qiiartz). 
ore-band. 
probably mica-schist, 
ore -band. 
These outcrops give no indication of the dip. Near the north-west 
tAanjanese-ore body 
Scale.Z inches ==100 fset 
|;^=| Manganese -ore body 
A. 
Scale:-/ inch =100 feef 
A = Plan oi a part of the ore -outcrop in Jam limits, 
B = Section along line XY in A. 
Fig. 41. 
end of the band the outcrop forms a small mound and seems to become 33 
yards wide. A careful examination, however, showed the state of affairs 
to be somewhat as in A., fig. 41, and the apparent great width of the 
outcrop is probably explained as shown by the section in B, fig. 41, the 
patches of mica-schist, according to this explanation, resting on the ore- 
band. If this be the correct interpretation it seems probable that the 
repetition of the bands at other parts of the outcrop may also be due to 
the folding up of one or perhaps two bands. The mound referred to 
above is the only part of the whole outcrop where there seems to be 
any possibility of a sufficient quantity of ore worth working, but even 
IV H 
