Chap. XXXVITT. ] sandur : ramandrug. 
1023 
pretation of the structure of this deposit. The portion indicated therein 
as the manganese-ore deposit looks as if it forms a thick rolling bed, the 
inward termination of which gives way to lithomargic rocks as shown. 
This bed-Uke mass rests upon lithomargic rocks, which are laminated 
conformably with the ' bedding ' of the manganese-ore, and into which 
roots or processes of manganese-ore seem to have grown down from the 
main mass of manganese-ore. The lithoraarges themselves are so 
largely replaced by and impregnated with manganese oxide, mostly in 
the form of wad, that they are coloured with white patches in brownish 
black. The beds overlying the manganese-ore ' bed ' had not been ex- 
posed by the quarrying operations, and were obscured on the hill-side by 
tumbled blocks of laterite, soil, and vegetation. The portion that is 
indicated as the manganese-ore deposit in the figure contains a consider- 
able amount of iron-ore, associated with the manganese-ores in no very 
regular fashion. The iron-ores consist of hematite, varjdng from soft 
red to hard blue-black, with a considerable amount of limonite and some 
yellow ochre. In one place there is a veinlet of hematite and hmonite 
about one inch thick traversing the manganese-ore, and pointing in this 
particular example to the deposition of some iron-ore subsequent to 
that of the manganese-ore. The manganese- ores consist of the same 
ores as at the Main Bed deposit. 
At the corner of the Prospect Pouit spur some 200 feet below the 
top of the plateau is the loading station and brake-gear of an aerial rope- 
way, which carries the ore, both of this deposit 
Prospect Point ropeway. i r -n ^ t m • f f 
and or Kamandrug Mam Bed, just round the 
other side of Prospect Point, This ropeway has, according to Mr. Ahlers, 
a vertical drop of 750 feet, and a length of supporting rope of 2,400 feet 
from brake-gear to unloading station at the bottom of the hill. These 
ropes, of 1 inch diameter, are carried on 7 trestles. The hauling rope is 
an endless one of J inch diameter. The capacity of each bucket is 0"6 
tons. When there is a full supply of ore 50 trips a day, equivalent to 
30 tons of ore, can be made with a working day of 10 hours. At the 
bottom of the ropeway there are two shoots, one for each bucket, through 
which the ore is tipped into 1-ton trucks standing on 2-foot gauge rails. 
These trucks are run out on to an elevated platform between the 
metre-gauge rails of the Southern Mahratta Railway siding from 
Mariyamanhalli, and the ore tipped sideways into the railway wagons. 
